Our use case for Microsoft Azure Cosmos DB is storing track and trace data, mainly for regulated markets.
COO & CTO at a computer software company with 51-200 employees
Helps us operate better and it's highly reliable and efficient
Pros and Cons
- "What I appreciate most are the latency and the access, which are guaranteed by the tool, which is really impressive."
- "What I appreciate most are the latency and the access, which are guaranteed by the tool, which is really impressive."
- "What is missing in Microsoft Azure Cosmos DB is definitely cold storage. We know it's coming, but that's currently what is missing—the possibility to park older data in a cold tier."
- "What is missing in Microsoft Azure Cosmos DB is definitely cold storage. We know it's coming, but that's currently what is missing—the possibility to park older data in a cold tier."
What is our primary use case?
How has it helped my organization?
The recent introduction of autoscale V2 has been a big benefit for us, as well as the compression has helped us reduce our costs without much impact.
It's a platform as a service; it definitely helps us operate better. We are not a big company. We have 200 people. It would be impossible for us to run the systems without a platform as a service.
It is pretty fast to learn the basics. However, when it comes to optimization and understanding all the details, it takes a little bit longer. Its learning curve is pretty short. It's pretty intuitive.
I would assess Microsoft Azure Cosmos DB's ability to search through large amounts of data as an eight out of ten.
What is most valuable?
What I appreciate most are the latency and the access, which are guaranteed by the tool, which is really impressive. I appreciate that it's a platform as a service that allows me not to think about capacity or operation, which makes a big difference for us.
What needs improvement?
What is missing in Microsoft Azure Cosmos DB is definitely cold storage. We know it's coming, but that's currently what is missing—the possibility to park older data in a cold tier. Aside from the storage, we are pretty happy with the rest.
Buyer's Guide
Microsoft Azure Cosmos DB
January 2026
Learn what your peers think about Microsoft Azure Cosmos DB. Get advice and tips from experienced pros sharing their opinions. Updated: January 2026.
881,757 professionals have used our research since 2012.
For how long have I used the solution?
I have been using this solution for six years.
What do I think about the stability of the solution?
I would rate the stability of Microsoft Azure Cosmos DB a nine out of ten. It is super stable.
What do I think about the scalability of the solution?
Microsoft Azure Cosmos DB is highly scalable. I would rate it a nine as well, although we sometimes encounter data center capacity issues because we are in the top three biggest instances of Microsoft Azure Cosmos DB.
Our clients are enterprises. We have 20 people working with this solution.
How are customer service and support?
We have regular contact with the product group, who listen to us to optimize our consumption and help us improve our solution to get more benefit from it. We had one incident, and they were very supportive during the incident, resolving it within the SLA, so it has been a good experience.
I would rate the technical support for Microsoft Azure Cosmos DB an eight out of ten.
How would you rate customer service and support?
Positive
Which solution did I use previously and why did I switch?
We did not test or use another solution. We went with Microsoft Azure Cosmos DB from the beginning, so I cannot really judge any improvements compared to what we were doing before. My experience is only with Microsoft Azure Cosmos DB.
How was the initial setup?
I would rate its initial setup a nine out of ten. Implementing the solution takes weeks, but the deployment of a new instance takes less than a day.
What was our ROI?
I believe Microsoft Azure Cosmos DB has decreased our total cost of ownership by clearly decreasing operational costs; the solution is highly reliable. On the other hand, the cost of the tool is still pretty high, which is a common complaint among customers. Looking at the spread of Microsoft Azure Cosmos DB on our total Azure landscape, it is by far the biggest cost point, so it is still expensive, but it is highly reliable and high-performance.
What's my experience with pricing, setup cost, and licensing?
It is pretty easy to use, but it is tricky to optimize because of the way the pricing works. You need to understand exactly the details of how the pricing works technically to stay within reasonable pricing.
What other advice do I have?
We do not utilize the built-in vector database capability yet, but we have plans to.
I would recommend Microsoft Azure Cosmos DB to other users. I would highly recommend digging into the details of how it works behind the scenes and discussing with the technical team prior to implementation to avoid mistakes that could lead to a gigantic invoice at the end of the month for nothing. Ensuring a good understanding of how it all works.
Overall, I would rate Microsoft Azure Cosmos DB as an eight out of ten.
Which deployment model are you using for this solution?
Public Cloud
If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?
Microsoft Azure
Disclosure: PeerSpot contacted the reviewer to collect the review and to validate authenticity. The reviewer was referred by the vendor, but the review is not subject to editing or approval by the vendor. The reviewer's company has a business relationship with this vendor other than being a customer: Partner
Cloud Solutions Architect and Microsoft Principal Consultant for EMEA at a tech vendor with 10,001+ employees
It is available in every region, allowing quick information storage and retrieval
Pros and Cons
- "Azure Cosmos DB's resiliency is valuable. It is available in every Azure region, allowing quick information storage and retrieval. We can partition it to improve indexing, enabling us to retrieve information and recreate website content quickly."
- "Cosmos DB has helped our organization handle large amounts of data."
- "Cosmos DB should continue evolving in AI features. We expect Cosmos DB to lead on that. There is potential for improved security features, which is important for data storage, especially for Dell Technologies. We must ensure data security remains the top priority."
- "We expect Cosmos DB to lead on that. There is potential for improved security features, which is important for data storage, especially for Dell Technologies."
What is our primary use case?
Our primary use case for Azure Cosmos DB is storing information for our large accounting application, which integrates several sites on SharePoint Online. We use event programming to store all calls in Cosmos DB, so we can redo them and have them persist in the database.
How has it helped my organization?
Cosmos DB has helped our organization handle large amounts of data. For example, we had a customer who collected data from 100,000 sites, and we increased that to a million without significantly increasing search query time. We can now search in nearly real-time, which has been crucial, especially with AI workloads.
What is most valuable?
Azure Cosmos DB's resiliency is valuable. It is available in every Azure region, allowing quick information storage and retrieval. We can partition it to improve indexing, enabling us to retrieve information and recreate website content quickly.
It's easy to use for our use case because we use it to store and retrieve information, but it will be more complex if you are configuring a Redis cache or something similar.
Cosmos DB also integrates well with Azure app services and functions, allowing us to scale by efficiently storing calls. Its ability to scale workloads is impressive, and features like partitioning and Azure replication enhance its scalability. Its interoperability with solutions is better than that of other NoSQL databases we assessed. It's native to Azure and integrates with the networks and security.
What needs improvement?
Cosmos DB should continue evolving in AI features. We expect Cosmos DB to lead on that. There is potential for improved security features, which is important for data storage, especially for Dell Technologies. We must ensure data security remains the top priority.
For how long have I used the solution?
I have been using Cosmos DB for over eight years, starting from its preview release.
What do I think about the stability of the solution?
There have been no notable issues with the stability of Cosmos DB. Any problems encountered were not directly related to Cosmos DB but perhaps coding errors or usage methods.
What do I think about the scalability of the solution?
Cosmos DB scales workloads impressively through features such as partitioning and Azure replication. Its design as a NoSQL database has helped us transition from traditional SQL, impacting costs positively.
Which solution did I use previously and why did I switch?
We previously used MongoDB, but Cosmos DB's integration within Azure provided better network and security options, making it a preferred choice. I've worked on Microsoft technologies since the beginning, and I love how Microsoft solutions are integrated. Everything works together securely, and moving from one technology to another is simple.
How was the initial setup?
The initial setup was easy. The transition from MongoDB was seamless as Cosmos DB has improved upon existing NoSQL structures without reinventing them.
What was our ROI?
Cosmos DB has decreased our organization's total cost of ownership, particularly with decreasing overhead costs due to its scalable features.
What's my experience with pricing, setup cost, and licensing?
We prioritized fine-tuning operations to optimize costs, and Cosmos DB’s pricing model allows room for improvement. We are assessing its use in other areas to potentially eliminate third-party solutions.
What other advice do I have?
I rate Microsoft Azure Cosmos DB nine out of 10. To avoid migration challenges, data storage methods in Cosmos DB should be carefully considered.
Which deployment model are you using for this solution?
Public Cloud
If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?
Microsoft Azure
Disclosure: My company has a business relationship with this vendor other than being a customer. partner
Buyer's Guide
Microsoft Azure Cosmos DB
January 2026
Learn what your peers think about Microsoft Azure Cosmos DB. Get advice and tips from experienced pros sharing their opinions. Updated: January 2026.
881,757 professionals have used our research since 2012.
Software developer at a insurance company with 501-1,000 employees
Offers swift data retrieval and scalability based on the workload
Pros and Cons
- "The best features of Microsoft Azure Cosmos DB include the speed to query data; as long as you index properly, retrieving data is fast and lightweight."
- "I would recommend Microsoft Azure Cosmos DB to other users without hesitation."
- "Areas of improvement for Microsoft Azure Cosmos DB include indexing. While it makes data retrieval easier, it also increases costs. If there's a better way to improve indexing at a lower cost, that would be really helpful, but that's the major point for now."
- "Areas of improvement for Microsoft Azure Cosmos DB include indexing. While it makes data retrieval easier, it also increases costs."
What is our primary use case?
In my place of work, we use Microsoft Azure Cosmos DB to store data for our services and mobile and web applications.
The problems we were trying to solve with Microsoft Azure Cosmos DB primarily involve storing data that is not relational, such as hierarchical documents and data. It helps to store data and scale up when we are pushing large amounts of data.
How has it helped my organization?
We need to scale data. With Microsoft Azure Cosmos DB, we are able to scale up when processing large amounts of data or scale down as needed. It's also lightweight.
There is ease of use, especially for managing lots of non-relational data, which is easier to use than relational data. Azure is our enterprise solution, so we utilize Microsoft Azure Cosmos DB as it offers resources to store and manage non-relational data. Given that we run an e-commerce site, we have a lot of non-relational data, especially for items and all related aspects. It's very helpful because alternative solutions using relational data would not fulfill our needs. It effectively stores hierarchical data and data without defined relationships, making it quite useful for our organization.
Using Microsoft Azure Cosmos DB is fairly easy, but most importantly, the availability of documentation and community makes it easy to research information. For instance, if there are certain queries I want to run, I could easily go online. There's also the Copilot feature that helps generate the query I need to retrieve the data I want. It's fairly easy to use, and there are many tools to assist in utilizing the resource.
What is most valuable?
The best features of Microsoft Azure Cosmos DB include the speed to query data; as long as you index properly, retrieving data is fast and lightweight.
Additionally, the scalability to scale your RUs when pushing large amounts of data to Microsoft Azure Cosmos DB and managing the speed or latency for read and write is crucial, depending on how you set it up.
What needs improvement?
Areas of improvement for Microsoft Azure Cosmos DB include indexing. While it makes data retrieval easier, it also increases costs. If there's a better way to improve indexing at a lower cost, that would be really helpful, but that's the major point for now.
For how long have I used the solution?
I have been using Microsoft Azure Cosmos DB for almost three years.
What do I think about the stability of the solution?
I would rate Microsoft Azure Cosmos DB a seven out of ten for stability.
What do I think about the scalability of the solution?
For scalability, I would rate Microsoft Azure Cosmos DB a ten out of ten. The technology department that utilizes Microsoft Azure Cosmos DB spans approximately 500-1000 users. We have multiple locations and departments using Microsoft Azure Cosmos DB.
It offers us scalability. It saves cost because the system scales up when we have an enormous amount of data going in to allow a large flow of data. Once we are back to low traffic, it scales down, saving costs.
How are customer service and support?
I would rate the technical support for Microsoft Azure Cosmos DB a seven out of ten.
How would you rate customer service and support?
Neutral
Which solution did I use previously and why did I switch?
I have not used other vendors; I have only worked with Microsoft. Therefore, I don't have a comparison to make.
How was the initial setup?
It took a couple of hours.
The learning curve for onboarding with Microsoft Azure Cosmos DB is quite short; as long as you get the portal, it is fairly self-explanatory on how to navigate around it.
The maintenance required for Microsoft Azure Cosmos DB is minimal. Maintenance is needed when Microsoft rolls out an update or when ensuring that our code packages are using the correct version of the Cosmos NuGet packages. It just means we need to stay up to date with the documentation.
What was our ROI?
I cannot quantify how much time or resources Microsoft Azure Cosmos DB saves me because I do not primarily work with cost management. I mainly focus on research and setup, but I think it saves costs—perhaps a few hundred pounds if we don't scale up. Putting it into perspective, it saves costs between 10% to 20%.
What's my experience with pricing, setup cost, and licensing?
It is cost-efficient as long as you understand the right setup to optimize usage. Knowing the data needs of the organization and adjusting the Microsoft Azure Cosmos DB usage accordingly helps save costs, but if you don't know, you could end up spending more than necessary.
What other advice do I have?
We do not use the built-in vector database capability of Microsoft Azure Cosmos DB; the nature of my department requires us to use the regular storage capability.
I would recommend Microsoft Azure Cosmos DB to other users without hesitation. I would rate Microsoft Azure Cosmos DB an eight out of ten.
Which deployment model are you using for this solution?
Public Cloud
If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?
Microsoft Azure
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Arquitecto Industrial IoT at a consultancy with 10,001+ employees
Offers developer kits for various databases but had performance issues with a data segregation query
Pros and Cons
- "Microsoft Azure Cosmos DB is a Microsoft solution specifically, but we can develop with different developer kits for different databases."
- "Big data, along with data analysis, is one of the valuable features."
- "We had some performance issues with a data segregation query. We worked closely with Microsoft to solve the problem of performance where, for example, one query had a delay of almost two or three minutes for this one use case. Microsoft tried to improve the product, but in the end, the solution was to change to MongoDB. MongoDB had better performance."
- "Our use case was a failure with Microsoft Azure Cosmos DB, and we do not have any other opportunity to use Microsoft Azure Cosmos DB."
What is our primary use case?
The main use cases involve creating some kind of dashboards in near real-time. Our use cases focus on manufacturing, where we used Microsoft Azure Cosmos DB to maintain data for the very intensive manufacturing processes. In the end, we performed data analysis on the operational processes in manufacturing.
What is most valuable?
Big data, along with data analysis, is one of the valuable features. We are able to have insights into how to make improvements in the processes for operational people.
Microsoft Azure Cosmos DB is a Microsoft solution specifically, but we can develop with different developer kits for different databases.
What needs improvement?
We had some performance issues with a data segregation query. We worked closely with Microsoft to solve the problem of performance where, for example, one query had a delay of almost two or three minutes for this one use case. Microsoft tried to improve the product, but in the end, the solution was to change to MongoDB. MongoDB had better performance. We reached the performance required using MongoDB instead of Microsoft Azure Cosmos DB.
For how long have I used the solution?
I used it for one year or less than one year.
What do I think about the stability of the solution?
Microsoft Azure Cosmos DB has good performance and latency. We only faced performance issues with the data segregation query.
What do I think about the scalability of the solution?
I would rate Microsoft Azure Cosmos DB a nine out of ten for the capability to scale workloads.
How are customer service and support?
On a scale of one to ten, I would rate customer service a seven. For example, when I created a ticket with them, they gave us feedback very often, even each week. This went on for four or five months, but they did not solve the problem. They only gave feedback, and in the end, it did not resolve the problem.
How would you rate customer service and support?
Neutral
Which solution did I use previously and why did I switch?
We changed from using Microsoft Azure Cosmos DB to MongoDB because Microsoft Azure Cosmos DB did not give us the correct performance for certain data segregation, so we replaced it with MongoDB.
People who helped us implement MongoDB were more specialized or had more expertise than Microsoft people.
How was the initial setup?
The setup of Microsoft Azure Cosmos DB was very easy. It took us a few weeks.
What about the implementation team?
We received help from Microsoft directly. They helped us to get started with it.
What was our ROI?
Our use case was a failure with Microsoft Azure Cosmos DB, and we do not have any other opportunity to use Microsoft Azure Cosmos DB.
What's my experience with pricing, setup cost, and licensing?
Its pricing is not bad. It is good.
We have a contract with Microsoft to use their technology. In my opinion, Microsoft Azure Cosmos DB is a good option for the total cost of ownership.
What other advice do I have?
I would rate Microsoft Azure Cosmos DB as seven out of ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Cloud Infrastructure Team Leader at a computer software company with 501-1,000 employees
Has enabled seamless deployment and monitoring of critical client environments
Pros and Cons
- "Overall, I think Microsoft Azure Cosmos DB works fine; I don't remember any case where our developers or our clients have been disappointed with it."
- "The only problem I face is more with infrastructure as code templates that don't cover everything that can be set up or configured on the portal, requiring some manual work which is additional work for us."
What is our primary use case?
We have a very large team of developers who develop a solution for our customers. In the part where they need some infrastructure on Microsoft Azure, we deploy entire environments of different types such as development, testing, production, and pre-production to Microsoft Azure and configure it, monitoring that infrastructure, one of them being Microsoft Azure Cosmos DB. Later, we hand over those resources to our development team and they can start to use it.
For example, we have one application which is for one of our post offices where they host their main application for tracking packages, for sending packages, and for everything they provide to their customers. The main database for this solution is Microsoft Azure Cosmos DB.
What is most valuable?
In production, we definitely are using automatic scaling because of the workload, since some days there is a workload which is very high and some days it is not so high. For non-production environments, it's a minimal setup with minimal SKU on Microsoft Azure.
Availability is for sure better with Microsoft Azure Cosmos DB, but it's also the biggest cost for that setup. We are a very small country from Slovenia, so our customers don't require so much high availability for their applications. This leads us to set up resources only in one region for most of them, while for the most critical workloads, such as those from banks, we use the multi-region setup and auto-scaling.
About the performance, I monitor everything that's going on, what is possible on the resource level in Microsoft Azure, and we also do the FinOps solutions for our customers, utilizing different metrics to optimize resources and the entire setup.
Overall, I think Microsoft Azure Cosmos DB works fine. I don't remember any case where our developers or our clients have been disappointed with it.
The benefits we and our clients have seen from using Microsoft Azure Cosmos DB are similar to those most platform-as-a-service solutions provide, where you don't need to take care of the underlying infrastructure, which is the main reason.
What needs improvement?
I have not utilized Microsoft Azure Cosmos DB multi-model support for handling diverse data types.
I'm not in the position to decide if clients will use Microsoft Azure Cosmos DB or any other database. However, I notice that there is more and more Microsoft Azure Cosmos DB setups in different applications.
The only problem I face is more with infrastructure as code templates that don't cover everything that can be set up or configured on the portal, requiring some manual work which is additional work for us. Some resource providers don't provide certain configurations, which I think is on Microsoft's side because they need to change Azure Resource Manager and the version of templates. Other aspects involve different providers for those templates including Azure Verified Modules with pre-configured templates on the community and the team working on them.
For how long have I used the solution?
I have been using or working with Microsoft Azure Cosmos DB for the last year and a half.
How are customer service and support?
I usually use Microsoft support, and I would evaluate them around one to ten as very bad for the first level. They have some instructions and procedures they follow without listening to customers, primarily seeking to get their checkboxes rather than fully understanding the customer's needs. However, upon reaching the product group or a higher level, the support was great. I currently have one critical ticket open for another solution and it has been handled excellently.
Based on my experience with Microsoft support, I would rate them around eight on a scale of one to ten. To make it a ten for me, they need to listen to customers more instead of just going through their automatic process.
How would you rate customer service and support?
Positive
What was our ROI?
Our clients see metrics in terms of ROI after some time, but not at the beginning. They usually observe cost saving and time saving post-optimization when we find the right SKUs because most of the time, they don't know what they need regarding the required SKU or size of some resources. After time, for sure, they see ROI.
On average, the kind of savings we see ranges from 15 to 25 percent. The savings I refer to are in money saving.
What other advice do I have?
In my opinion, the main difference between Microsoft Azure Cosmos DB and other types of databases is hard to say. It's mostly how developers see everything, as it depends more on the development side—what they want to use and what features they need, such as relational databases or document databases. This leads us to select the right database based on those inputs. The selection is based on the use case.
We are implementing other Microsoft Azure solutions like Azure SQL and Postgres. We focus only on Microsoft Azure and do not work with other vendors like AWS. I gave this review a rating of ten out of ten.
Disclosure: My company has a business relationship with this vendor other than being a customer. Cloud Solution Provider
Last updated: Nov 19, 2025
Flag as inappropriateEngineer Staff at a manufacturing company with 1,001-5,000 employees
Exceptional user interface elevates real-time data access and application responsiveness
Pros and Cons
- "The best feature about Microsoft Azure Cosmos DB is its interface, which is awesome for accessing data."
- "The user interface of Microsoft Azure Cosmos DB is the best part of the entire Microsoft ecosystem; I find it to be the best user interface you can ever hope for, especially when compared to AWS and GCP, which do not measure up as well."
- "The only area Microsoft Azure Cosmos DB can improve on is its documentation; while it is solid and very useful, enhancements in the indexing documentation would help users save costs and make it more cost-effective."
- "The only area Microsoft Azure Cosmos DB can improve on is its documentation; while it is solid and very useful, enhancements in the indexing documentation would help users save costs and make it more cost-effective."
What is our primary use case?
Our current use cases for Microsoft Azure Cosmos DB include IoT-based applications such as home automation, conferencing, and industrial automation, utilizing devices like microphones and speakers.
What is most valuable?
The best feature about Microsoft Azure Cosmos DB is its interface, which is awesome for accessing data. Additionally, its indexing capabilities and responsiveness allow us to get information with a very excellent SLA, making it suitable for our IoT-based applications where we can update the statuses of devices in real time, which is an outstanding feature. Microsoft Azure Cosmos DB has helped us improve the search result quality in meaningful ways.
The user interface of Microsoft Azure Cosmos DB is the best part of the entire Microsoft ecosystem; I find it to be the best user interface you can ever hope for, especially when compared to AWS and GCP, which do not measure up as well.
What needs improvement?
The only area Microsoft Azure Cosmos DB can improve on is its documentation; while it is solid and very useful, enhancements in the indexing documentation would help users save costs and make it more cost-effective. This is often a missing piece from Microsoft's side regarding how we can utilize it in the most cost-effective manner. The documentation for the FSx tab was not very good, and we faced a lot of struggles with it a few years back. I believe that has improved, however, Microsoft should really focus on these features since data analytics is very important today.
For how long have I used the solution?
I have been using Microsoft Azure Cosmos DB for the past seven-plus years.
What do I think about the stability of the solution?
I have never encountered any issues with lagging, crashing, or downtime in Microsoft Azure Cosmos DB.
What do I think about the scalability of the solution?
Recently, we have started using AI in Microsoft Azure Cosmos DB, particularly in AI-based search and related capabilities, which is pretty good.
How are customer service and support?
I have contacted their technical support, and I find them to be pretty good. The speed of Microsoft Azure Cosmos DB support sometimes depends on the tier of support you have. I have noticed that even if you have the highest tier support, the attention given may vary based on the business relationship; I experienced this in organizations where the level of investment in Microsoft services differed, impacting the quality of support.
How would you rate customer service and support?
Which solution did I use previously and why did I switch?
We have used AWS DynamoDB as an alternative to Microsoft Azure Cosmos DB, which has similar features, however, I found AWS to be much more user-friendly. AWS provides a slightly better SLA, but Microsoft Azure Cosmos DB is not far behind in that regard.
How was the initial setup?
The initial deployment of Microsoft Azure Cosmos DB was pretty easy and went smoothly for me.
Deploying Microsoft Azure Cosmos DB requires only a couple of people, which is good enough. That's how we started, though now we have a very large team. We considered deploying Microsoft Azure Cosmos DB across multiple regions. However, we ultimately decided to keep it in a single region.
There's a feature called AWS FSx tab that allows data in Microsoft Azure Cosmos DB to be utilized for data analytics purposes. However, querying data on Microsoft Azure Cosmos DB incurs costs, especially after crossing their tiers.
What's my experience with pricing, setup cost, and licensing?
The pricing for Microsoft Azure Cosmos DB is more or less the same as its competitors, making it challenging to declare a clear best option.
Which other solutions did I evaluate?
I haven't used the built-in vector database feature of Microsoft Azure Cosmos DB.
What other advice do I have?
In my previous company, we were partners with Microsoft about six or seven years back. Currently, we are just customers, and the same holds true for my current company as well.
I would rate Microsoft Azure Cosmos DB an eight out of ten for everything.
If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?
Microsoft Azure
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Last updated: Jul 11, 2025
Flag as inappropriateSystem Administrator Technology Services Engineer at a retailer with 10,001+ employees
Interactions are easy with API access and scaling is also easy
Pros and Cons
- "The best feature of Microsoft Azure Cosmos DB is API access, which makes it very easy to interact with the database without needing to write queries."
- "Overall, I would rate Microsoft Azure Cosmos DB a nine out of ten."
- "They can implement a better backup system or alert system on Microsoft's end. We do receive notices for regular maintenance or updates, but sudden issues create significant problems."
- "There is room for improvement in Microsoft's maintenance aspect. For example, we had a major incident at the end of December where the entire South Central region was down for our application, causing many problems due to a lack of access to the database."
What is our primary use case?
We use it for our internal operations, including order history and other things related to e-commerce.
We do not use the built-in vector database capabilities since they are driven by another team in our organization. We just access through the API.
How has it helped my organization?
We find Microsoft Azure Cosmos DB easy to use. We are provided APIs for each and every write or edit access, even for read operations. We don't directly query the database. API-based access makes it easy.
Previously, we used to have maintenance or server issues. We don't have those issues anymore.
What is most valuable?
The best feature of Microsoft Azure Cosmos DB is API access, which makes it very easy to interact with the database without needing to write queries. It's also fast. As it's Microsoft-provisioned, the cloud is very accessible and reliable as well.
What needs improvement?
There is room for improvement in Microsoft's maintenance aspect. For example, we had a major incident at the end of December where the entire South Central region was down for our application, causing many problems due to a lack of access to the database. It led to missing data in some systems. They can implement a better backup system or alert system on Microsoft's end. We do receive notices for regular maintenance or updates, but sudden issues create significant problems.
For how long have I used the solution?
I've been using Microsoft Azure Cosmos DB for more than one year.
What do I think about the stability of the solution?
In the past year, I have only been using Microsoft Azure Cosmos DB for a year, and previously we encountered Microsoft issues such as maintenance or server problems, but these days we are not observing that as much.
For stability and impressions of latency and availability, I would rate it an eight or nine; we have not seen significant issues recently.
What do I think about the scalability of the solution?
I rate scalability as pretty good. Because it's in the cloud, scaling is easy.
We are a very large organization. It is hard to know how many teams use Microsoft Azure Cosmos DB or still rely on the older systems. I am in India, and our team uses Microsoft Azure Cosmos DB, and I believe teams in the U.S. use it as well.
How are customer service and support?
I would rate the technical support a nine out of ten.
How would you rate customer service and support?
Positive
Which solution did I use previously and why did I switch?
Before using Microsoft Azure Cosmos DB, we had a different database system in place. The main factor for switching was cost-related. It was a leadership decision, and as a fresher, I wasn't involved in these discussions.
How was the initial setup?
We were not part of the deployment. We were involved in migration activities, but I'm not very sure about the deployment experience. We aren't seeing any major issues now.
Maintenance of Microsoft Azure Cosmos DB is ongoing. There is a Cosmos DB team in our organization conducting maintenance, though not very frequently.
What's my experience with pricing, setup cost, and licensing?
I'm not aware of the exact costs. We received one report a long time ago regarding savings after we started using Microsoft Azure Cosmos DB, but I don't remember the details. It seems to have helped significantly. We were using a different database system previously, and one of the reasons for acquiring Microsoft Azure Cosmos DB was cost.
What other advice do I have?
I definitely recommend Microsoft Azure Cosmos DB, although I'm still learning. It's been just two years, but I've taken courses on Microsoft Azure. I recognize the advantages in scalability, availability, and cost factors, with maintenance issues being minimal as well.
Overall, I would rate Microsoft Azure Cosmos DB a nine out of ten.
Which deployment model are you using for this solution?
Public Cloud
If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?
Microsoft Azure
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Director | Data & AI at a tech services company with 11-50 employees
Very efficient for application-facing scenarios
Pros and Cons
- "The most valuable feature of Azure Cosmos DB is its scalability. That is the biggest reason I use Azure Cosmos DB."
- "We achieved a strong return on investment."
- "Firstly, having a local development emulator or simulator for Azure Cosmos DB would be beneficial. It would be very handy to have a Docker container that developers can use locally."
- "Because there is no local way of doing things, Azure Cosmos DB will always be considered expensive."
What is our primary use case?
Azure Cosmos DB is our database of choice for new applications and cloud-native applications. I use it anywhere.
How has it helped my organization?
Because it is NoSQL, it has the capability to adapt to changes. As compared to Azure SQL or other SQL databases, Azure Cosmos DB is schema-less. We can add new columns anytime, and the application will not break. It is very efficient for application-facing scenarios.
What is most valuable?
The most valuable feature of Azure Cosmos DB is its scalability. That is the biggest reason I use Azure Cosmos DB.
I also like its developer-friendliness. It is very easy to begin with. Microsoft and Azure are good with that. With all the getting started information and all the introductions, it is very easy to begin with. Optimization is where it gets a bit trickier. That is where you need to be more active and understand why things are not performing as they used to. Most of the time, performance is not a problem. It is always fast. The problem is more around the cost consequence of that performance.
Its vector capabilities are new. They were implemented just months ago. There are probably three things that we were looking to address by using the vector database. The number one is the cost of Azure AI search and indexing. Before this feature came out in Azure Cosmos DB, the alternative for me was using AI search, which is way more expensive if using it as a vector database. Now with Azure Cosmos DB, that price point becomes much more accessible. That is number one.
Number two is the developer familiarity aspect of things. AI search is more around enterprise use cases or enterprise search and requires more specialized skills to begin with, whereas Azure Cosmos DB is more or less a commoditized developer platform that is much more accessible to a wider developer audience. That is another aspect that it has addressed. For example, if I have a new starter in my team, it is easier to train that person on Azure Cosmos DB than the AI search. With the explosion of LLMs, AI agents, and things like that, the vector database on Azure Cosmos DB is a good place for developer onboarding. It is just way easier.
The third part is still related to the developer experience, but in terms of the SDK aspect, the libraries available for Azure Cosmos DB are already well-established in the ecosystem. With the vector database capability, it is just a matter of adding an extension of those existing libraries. That means if the applications that are already using Azure Cosmos DB want to jump to the vector database, the jump would not be that big. It is just a matter of implementing it directly with their existing Azure Cosmos DB that they are already using.
We have used the vector database with Azure AI services. The other aspect is using the vector database with document intelligence. We use document intelligence to process a raw PDF document and things like that. From there, we convert that into embeddings, and then those embeddings will be stored in the vector database. It is something we use as a landing spot for new LLM applications.
The quality has improved because, traditionally, we did things in batches. We processed documents once a day or every twelve hours or so. With this new capability, we are very confident to run those processes in real-time. As new documents come in, the process and the workflow can get triggered. It is not a batch anymore. It is in real-time.
Azure Cosmos DB’s ability to search through large amounts of data is yet to be determined. Large is subjective at the moment. I have only tested it up to 2 gigabytes, and for that, it is working pretty well.
Azure Cosmos DB is our default. We do not question it anymore. After migrating out applications from an SQL database to Azure Cosmos DB, the change in the organization is massive. Especially on the application side of things, app developers are much more productive and lean. Previously, we had to go through a very rigorous process. To add new columns, tables, and other things, we had to work with DBAs. With Azure Cosmos DB, we can have a PoC and POV in weeks, sometimes days, instead of six months. That is how the whole NoSQL ecosystem changed our life cycle and productivity.
Azure Cosmos DB has changed our total cost of ownership for old applications, but not for new applications. For those who are still using SQL Servers or other databases, there was an added TCO because different projects are using different databases, whereas about 10 or 15 years ago, we had just Oracle, SQL Server, or IBM. For new applications, it is the default for us, so there is no change in TCO.
What needs improvement?
There are several areas for improvement. Firstly, having a local development emulator or simulator for Azure Cosmos DB would be beneficial. It would be very handy to have a Docker container that developers can use locally. Although, I know there is a free tier and so on and so forth, having a local environment would be nice. For example, SQL Server is very portable. You can even install it on your machine. That is the number one thing that is missing in Azure Cosmos DB.
The second improvement area is the IDE of choice. That means how you interact with Azure Cosmos DB. For example, with SQL Server, you have SQL Server Management Studio. I know there is a little bit of support for Azure Cosmos DB in Azure Data Studio, but it is not heavily advertised or it does not feel like first-class citizen support. Developer experience or developer tooling is missing in terms of interacting with the database. Better developer tools or an IDE for interacting with Azure Cosmos DB would enhance the developer experience.
Lastly, there is some mixed messaging about what Azure Cosmos DB is, given its multiple APIs. There are so many Azure Cosmos DB APIs available. There is NoSQL. There are MongoDB, Gremlin, and others. There is still some mixed messaging for others who are new to Azure Cosmos DB about what Azure Cosmos DB is. Is this like MongoDB, but then there is also MongoDB in Azure Cosmos DB? I know it well, and I know that the default one is just NoSQL, but others I have interacted with over the last ten years or so get confused.
For how long have I used the solution?
I have been using Azure Cosmos DB for over a decade. I have been using it since it was announced.
What do I think about the stability of the solution?
The solution is very stable, and I cannot recall a time when Azure Cosmos DB let us down. I would rate it a ten out of ten for stability. I never had issues with it.
What do I think about the scalability of the solution?
Its scalability deserves a ten out of ten. I have never hit a limit with Azure Cosmos DB.
We have multiple locations and multiple departments. We are in different countries and regions. For our one project, we have multiple Azure Cosmos DBs. We have about seven developers, and we have tens of thousands of users or consumers. Our clients are enterprises and SMCs.
How are customer service and support?
Early on, about a decade ago, when I started with Azure Cosmos DB, I just played with it and created many things. I ended up having a $10,000 bill. Because it was an accident, I had to send a support ticket. The support team was able to waive that cost for me. That left a very good impression on me up until today. I did not have to pay that money, especially when I was just starting. Now, there are very good partners out there, us included, who are well familiar with Azure Cosmos DB. That ecosystem is well supported now. It is not like you are going to a niche database and hoping for the best. That ecosystem is quite mature.
I would rate customer service and support a nine out of ten. The only reason why it is not a ten is because a lot more triaging is required when raising a support ticket. That is the problem I have.
How would you rate customer service and support?
Positive
Which solution did I use previously and why did I switch?
Before using Azure Cosmos DB, we primarily used MongoDB and Postgres. I have a mixed experience with both of them. There are also Azure flavors of those. You have MongoDB Atlas on Azure and you have Postgres on Azure. That is why sometimes I am very conflicted about which one to use. Both MongoDB and Postgres have captured the audience around the open-source community and the non-Microsoft enterprise or developer ecosystem.
How was the initial setup?
The deployment is a one-off. It is straightforward. For provisioning Azure Cosmos DB, everything is there. It has been straightforward so far.
Its deployment is done in minutes. In terms of maintenance, Azure Cosmos DB itself does not have any maintenance. However, the application that we are supporting and developing needs maintenance. That is it. Azure Cosmos DB does not require migrations like SQL Server where you have to manage a migration from version 17 to 19 and so on.
What was our ROI?
We achieved a strong return on investment. Using Azure Cosmos DB enabled us to bring a project to the MVP stage in six weeks. With one recent application that we had, if we had gone through another approach, the project could have taken six months in an enterprise setting where everything is slow and challenging. Getting an MVP of that project would have taken six to eight months, but because we had an active choice of using Azure Cosmos DB and other related cloud-native services of Azure, we were able to get to an MVP stage in a matter of weeks, which is six weeks. That was a very measurable impact that we had. If we went another route, just defining the tables, entities, and other things would have taken us a big amount of time. We had already identified base entities. We knew we could add more columns or remove some columns as we went along. That gave the agility to our project.
We do not have to look at it periodically. I do not get support calls that our application is down.
What's my experience with pricing, setup cost, and licensing?
From a startup point of view, it appears to be expensive. If I were to create my startup, it would not have the pricing appeal compared to the competition, such as Supabase. All those other databases are well-advertised by communities. I know there is a free tier with Azure Cosmos DB. It is just not well advertised.
For mid-tier customers, its pricing is justifiable. The enterprise tier is where it is subjective. For organizations that have built a lot of capabilities around SQL Server, Oracle, or so forth, because of the lack of skills, understanding, and capabilities around Azure Cosmos DB, it would appear to be expensive. The professional services aspect of Azure Cosmos DB is what is driving the cost, not the platform itself. The skills required to manage the service can drive up costs more than the platform itself.
What other advice do I have?
I would recommend Azure Cosmos DB for its scalability and performance. Do not be frightened to give it a try. Because there is no local way of doing things, Azure Cosmos DB will always be considered expensive. It is not very developer-friendly when you have to pay upfront, but there is a free tier. Microsoft needs to do better in terms of communicating that it is free to get started.
I would rate Azure Cosmos DB an eight out of ten because of the lack of local development and so on. It also gets confusing with so many APIs. There is a mixed messaging problem around that. The vector database and so on are also confusing. There is a vector database, but depending on which API you choose, there is a different implementation. It is just a bit confusing. I use this every day, so I know it by heart. I know where it is going, but it is just not very easy to get started for others. Messaging and product categorization are not clear. The way they are bundled or packaged is confusing.
Which deployment model are you using for this solution?
Public Cloud
Disclosure: PeerSpot contacted the reviewer to collect the review and to validate authenticity. The reviewer was referred by the vendor, but the review is not subject to editing or approval by the vendor. The reviewer's company has a business relationship with this vendor other than being a customer: Partner
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Updated: January 2026
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