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Amazon OpenSearch Service vs Splunk ITSI (IT Service Intelligence) comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Feb 22, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Amazon OpenSearch Service
Ranking in Application Performance Monitoring (APM) and Observability
24th
Average Rating
7.6
Reviews Sentiment
6.7
Number of Reviews
13
Ranking in other categories
Log Management (15th), Search as a Service (3rd)
Splunk ITSI (IT Service Int...
Ranking in Application Performance Monitoring (APM) and Observability
9th
Average Rating
8.4
Reviews Sentiment
6.6
Number of Reviews
64
Ranking in other categories
IT Alerting and Incident Management (4th)
 

Mindshare comparison

As of October 2026, in the Application Performance Monitoring (APM) and Observability category, the mindshare of Amazon OpenSearch Service is 0.9%, down from 1.9% compared to the previous year. The mindshare of Splunk ITSI (IT Service Intelligence) is 0.8%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Performance Monitoring (APM) and Observability Mindshare Distribution
ProductMindshare (%)
Splunk ITSI (IT Service Intelligence)0.8%
Amazon OpenSearch Service0.9%
Other98.3%
Application Performance Monitoring (APM) and Observability
 

Featured Reviews

Md. Shahariar Hossen - PeerSpot reviewer
Senior Software Engineer at Cefalo
Event tracking has become smoother and data analytics provide clear insights for user actions
Amazon OpenSearch Service is not providing the processing feature directly. From Amazon OpenSearch Service, we are actually maintaining the AWS SQS, the queue service, which is responsible for providing information about what data has to be modified. So using that SQS, we're actually providing it, but we're not directly using Amazon OpenSearch Service for keeping data to other data pipeline thing. So far we didn't use it for any machine learning purposes, but in future, we have plans to extend or implement this feature. Since AWS itself is secure and Amazon OpenSearch Service is a part of this entire ecosystem, it becomes much easier for security purposes. From the validation point of view, Amazon OpenSearch Service itself provides easy to communicate APIs and up-to-date documents, which is much beneficial. For example, if I'm missing anything, I can directly go and check the documentation. That is actually much easier. I would rate it as really good so far. It's much faster. For our local machine, we can also use a kind of replica of Amazon OpenSearch Service just for development purposes. That is another good feature. I would say for the encryption thing and also the user access control management, it's much faster. For some of these hashing algorithms, it also worked really well so far. To be honest, I didn't find any places where it can be improved. However, I think they could provide more abstraction. For example, still for searching, we have to write down the queries in a specific manner, such as for a specific JSON structure or in a specific way. Otherwise, they don't provide us the actual results. For at least this purpose, I think abstraction could be a bit easier or a bit improved. Other than that, right now there is the age of AI, so some kind of prompting could also work, but I'm not sure how it could be integrated. As a user, lower prices or reasonable pricing is always better. Those can be improved as well. However, it is good that most of the services including Amazon OpenSearch Service actually provide pay as you go pricing. So if there were a bit lower version or a bit less payment methodology, it might be much better.
DS
Senior Consultant at a consultancy with 10,001+ employees
Service health has been monitored and visual insights support proactive telecom operations
The installation process is the first aspect I dislike about Splunk ITSI (IT Service Intelligence). If you do not configure it correctly, you will encounter issues in the search head. Because we use a distributed environment where each component has its own specific roles, installation is critical and requires careful attention. Splunk ITSI (IT Service Intelligence) is built with many applications. It is a compressed file, and when you extract the Splunk ITSI (IT Service Intelligence) app, you receive approximately 19 apps. Some applications, add-ons, and packages must be installed on specific components. If you do not configure an application correctly, it will not work. Sometimes we encounter issues during installation because of this complexity. I believe the installation process should be more uniform, meaning it could be deployed across all components to avoid post-installation issues. Sometimes after installation, you receive errors, and users cannot access Splunk ITSI (IT Service Intelligence). We have experienced this type of issue due to installation errors. I believe there is currently room for improvement regarding scalability. When we create Glass Tables containing many searches, the Glass Tables sometimes fail due to memory constraints, and we receive error pages. Splunk ITSI (IT Service Intelligence) should have a lightweight version to address these concerns. I would rate current scalability as medium.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Our customers have seen tangible benefits from Amazon OpenSearch Service, especially in terms of their applications running smoothly, so they do get a return on investment."
"Amazon OpenSearch Service has enhanced our organization's ability to store and search large amounts of data efficiently."
"AWS has now made our life easy."
"It's actually easier to collaborate since it is already deployed in the AWS cloud itself."
"In case there is a failure, Elastic manages everything well, and there no major downtime."
"Amazon OpenSearch Service provides a managed database solution, so we don't need to manage everything ourselves."
"Regarding valuable features of the solution, we found with the process, which we have used in both cases where we used the solution that while you're seeing the streaming of data, you can analyze in the initial phase what sort of data you are streaming and whether it is valuable."
"The most valuable features of Amazon Elasticsearch are ease of use, native JSON, and efficiency. Additionally, handles many use cases and search grammar was useful."
"It has saved me a lot of money and a lot of time."
"With Splunk ITSI (IT Service Intelligence), all alerts feed into one tool, providing rich dashboards and visualizations for our team to look at, making it a standout feature."
"Customers have noted the solution helps streamline incident management."
"I find the episode review, glass tables, and correlation search features very useful."
"The service analyzer view and automatic creation of incidents are valuable."
"The KPS used to automate the integration policy is the most valuable feature of Splunk ITSI."
"We save substantial time on monitoring tasks because we don't have to search for what we need. Everything is packed, so you can drill down to the end values by just doing the kit. We don't spend a lot of time on this. Splunk ITSI is easy to use and not time-consuming."
"The most valuable features are the service analyzer and Glass Tables."
 

Cons

"It would be beneficial to have some level of customization available in the managed service, tailored to the specific use cases of the end users."
"As a user, lower prices or reasonable pricing is always better."
"I want to see a new feature in Amazon Elasticsearch Service that allows users to create default filters for filtered levels."
"They can enhance data visualization."
"The configuration should be more straightforward because we had to select a lot of things."
"Amazon Elasticsearch can improve the bullion in the near search and the ease of integration with Kibana. Additionally, there could be more flexibility in the configuration and documentation."
"In terms of data handling capabilities with Amazon OpenSearch Service, they can be complex and managing data in comparison to other SIM solutions is a major drawback, as it is very hard to handle the data."
"One improvement I would like to see is support for auto-scaling."
"We're getting alerts with delays of maybe five minutes, however, we'd like to see real-time alerting in the future."
"The problem becomes the price, as Splunk is an expensive product."
"I see areas for improvement in Splunk ITSI (IT Service Intelligence) such as cost, which is high."
"Some of our customers occasionally require the development of the connectors when there are no native connectors so that we can develop in Python or for customer slash comments as well. If they could adjust that, it would be ideal."
"The user interface visualization could be improved."
"It could be a little easier to use with the thresholding. We've struggled a little bit with thresholding."
"Splunk ITSI should include ease of integration and more templating."
"Occasionally, we have faced some slowness, which we reported to Splunk, and those issues were promptly resolved."
 

Pricing and Cost Advice

"The solution is not expensive, but priced averagely, I will say."
"Compared to other cloud platforms, it is manageable and not very expensive."
"There is a community edition available and the price of the commercial offering is reasonable."
"You only pay for what you use."
"It is interesting. I am not involved that much lately, but if I recall correctly, you license primarily on the volume of data that you are using in Splunk ITSI, but there is no way Splunk can ever check if that is true, so that is interesting. We are not doing it, but someone can pretend to just use 10%, and it would be super cheap. It is tricky, but it is more tricky for Splunk than for us."
"Splunk ITSI is expensive."
"Splunk is pretty expensive, but it gives you a decent insight into the data. It is easy to learn, and ITSI has a great interface. You can run those queries and pass the data. I"
"Splunk ITSI is a pay-per-use service that is priced fairly based on the amount of data we use."
"Its pricing has been changed as per the market. You get a good support service with it as well. They have 24/7 customer support. There is a portal, and if you are having issues, they are available in order to resolve them. So, its pricing isn't too much."
"Pricing was pretty good, and it is possible to just add on the features we want."
"Splunk pricing is high."
"I would prefer that the price be reduced, as it would be easier to implement it and to sell it."
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Top Industries

By visitors reading reviews
Financial Services Firm
14%
Manufacturing Company
10%
Computer Software Company
8%
Comms Service Provider
7%
Outsourcing Company
14%
Manufacturing Company
12%
Financial Services Firm
12%
Healthcare Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise2
Large Enterprise4
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise8
Large Enterprise46
 

Questions from the Community

What is your experience regarding pricing and costs for Amazon OpenSearch Service?
I would consider the pricing as a six based on how much data we are handling; if we handle minimal data, it's cheap, but for large data, it becomes costly. Our clients usually pay between $1,000 to...
What needs improvement with Amazon OpenSearch Service?
Amazon OpenSearch Service is not providing the processing feature directly. From Amazon OpenSearch Service, we are actually maintaining the AWS SQS, the queue service, which is responsible for prov...
What is your primary use case for Amazon OpenSearch Service?
Amazon OpenSearch Service is a user-friendly version of Elasticsearch, as per my understanding. I have been using it for our volunteer management system where around 5,000 to 6,000 users are using ...
What is your experience regarding pricing and costs for Splunk ITSI (IT Service Intelligence)?
From a pricing perspective, it is not that bad because we get it from a distributor and do not purchase it directly from Splunk. We get it from a distributor who gives the pricing to a partner and ...
What needs improvement with Splunk ITSI (IT Service Intelligence)?
Training the database could make Splunk ITSI (IT Service Intelligence) even better for my work. I sometimes feel a lag with Splunk ITSI (IT Service Intelligence). I gave it a nine out of ten.
What is your primary use case for Splunk ITSI (IT Service Intelligence)?
I have been using Splunk ITSI (IT Service Intelligence) for the last two to three years for my data handling. I do IT implementation with strong technical skills. I sometimes use Splunk ITSI (IT Se...
 

Also Known As

Amazon Elasticsearch Service
No data available
 

Overview

 

Sample Customers

VIDCOIN, Wyng, Yellow New Zealand, zipMoney, Cimri, Siemens, Unbabel
TransUnion, Cox Automotive, Carnival Cruises, Leidos, Econocom, National Ignition Factory, Entrust Datacard, Molina Healthcare, United States Census Bureau
Find out what your peers are saying about Amazon OpenSearch Service vs. Splunk ITSI (IT Service Intelligence) and other solutions. Updated: September 2026.
919,894 professionals have used our research since 2012.