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

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

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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

22nd

Average Rating

7.6

Reviews Sentiment

6.7

Number of Reviews

Ranking in other categories

Log Management (18th), Search as a Service (3rd)

Splunk ITSI (IT Service Int...

Ranking in Application Performance Monitoring (APM) and Observability

10th

Average Rating

8.4

Reviews Sentiment

6.7

Number of Reviews

Ranking in other categories

IT Alerting and Incident Management (3rd)

Mindshare comparison

As of May 2026, in the Application Performance Monitoring (APM) and Observability category, the mindshare of Amazon OpenSearch Service is 1.1%, down from 1.9% compared to the previous year. The mindshare of Splunk ITSI (IT Service Intelligence) is 0.8%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Application Performance Monitoring (APM) and Observability Mindshare Distribution
Product	Mindshare (%)
Splunk ITSI (IT Service Intelligence)	0.8%
Amazon OpenSearch Service	1.1%
Other	98.1%

Application Performance Monitoring (APM) and Observability

Featured Reviews

Md. Shahariar Hossen

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.

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DhirendraSingh2

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.

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Quotes from Members

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

Pros

"The business analytics capabilities are the most important feature it provides."

"I would definitely recommend Amazon OpenSearch Service to other professionals due to its fast and reliable search capabilities."

"Amazon OpenSearch Service provides a managed database solution, so we don't need to manage everything ourselves."

"They have the good documentation in the help text and that is the reason the Amazon Elasticsearch is the perfect solution for the current market."

"They have the good documentation in the help text and that is the reason the Amazon is the perfect solution in the current market."

"It enables us to efficiently search and retrieve our event data, offering us a versatile approach to locate specific information within these logs."

"The stability of the product is good."

"The initial set up is very easy...We really appreciate Amazon!"

More Amazon OpenSearch Service pros

"One of the excellent features is the service analyzer, which is truly impressive."

"The solution is easy to scale."

"Splunk ITSI (IT Service Intelligence) calculates the service health based on our KPIs and scores and it helps us to monitor services instead of just infrastructure."

"The most valuable features of Splunk ITSI are event analytics and service insight."

"Splunk Episodes are valuable because it correlates and aggregates all the information, and you do not have one million events to look at and triage, so it is quite convenient."

"We can automate routine tasks. We're able to create alerts, reports, scheduled searches, et cetera. It's helping us to save time."

"ITSI's KPI and correlation search aspects are powerful, and the service creation suits the project well. It allows for good segregation of the monitoring solution, and up-to-date quick-time monitoring. We're notified quickly when something goes wrong."

"The feature that stood out to me most from Splunk IT Service Intelligence (ITSI) was automated dashboarding or reporting. The solution lists the severity level of issues, and the response times."

More Splunk ITSI (IT Service Intelligence) pros

Cons

"The pricing aspect is a concern. The service is way too costly. For the past month, I used only 30 to 40 MB of data, and the cost was $500. AWS could improve pricing."

"I want to see a new feature in Amazon Elasticsearch Service that allows users to create default filters for filtered levels."

"One improvement I would like to see is support for auto-scaling."

"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."

"There is a problem with the database. Amazon only provides the hosting to run our applications bias, but there is no option to manage the database within the Elasticsearch product."

"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."

"We faced documentation challenges during integration after migrating from Elasticsearch to Amazon OpenSearch Service. Better documentation on integration, query handling, and a more user-friendly UI could enhance the product."

More Amazon OpenSearch Service cons

"ITSI is an almost perfect tool, but there is room for improvement in a few features like the deep dive and multi-KPI alerts. We're using most of the features like service API, coding searches, and aggregation, but our team members hardly use multi-KPI and deep dive. We don't use the multi-KPI or deep dive because everything is available in the service KPI. I don't think this feature is necessary."

"Microservices is the only area where Splunk ITSI can be improved. When things come from one EC2 instance to another, there's a lack of exposure to microservices, so we can't know what's happening. Apart from that, it's doing pretty well."

"We'd like them to show more inputs on the dashboard."

"The dashboard queries should be improved. More queries should be suggested in order to produce better dashboards."

"Currently, Glass tables in ITSI only display metrics related to KPIs."

"While Splunk has existing add-ons, they are unreliable and do not provide accurate results."

"We're using predictive analytics, and there are three or four algorithms. It would be helpful if this process were more standardized and scalable."

"We're getting alerts with delays of maybe five minutes, however, we'd like to see real-time alerting in the future."

More Splunk ITSI (IT Service Intelligence) cons

Pricing and Cost Advice

"Compared to other cloud platforms, it is manageable and not very expensive."

"You only pay for what you use."

"There is a community edition available and the price of the commercial offering is reasonable."

"The solution is not expensive, but priced averagely, I will say."

"The pricing of Splunk is a bit high."

"Splunk ITSI is expensive compared to other tools."

"I know that it is expensive, but I do not think there is another solution that can do similar things for that price."

"The licensing is based on data usage."

"Splunk ITSI is expensive."

"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."

"I wouldn't say there's been an issue with the solution's pricing because we went through the AWS marketplace and negotiated directly with Splunk."

"The cost of the modules is a bit high for non-global companies, making it difficult for them to afford Splunk ITSI."

More Splunk ITSI (IT Service Intelligence) pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

16%

Manufacturing Company

10%

Computer Software Company

10%

Government

Financial Services Firm

17%

Manufacturing Company

10%

Outsourcing Company

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	7
Midsize Enterprise	2
Large Enterprise	3

By reviewers
Company Size	Count
Small Business	17
Midsize Enterprise	10
Large Enterprise	43

Questions from the Community

What do you like most about Amazon OpenSearch Service?

We retrieve historical data with just a click of a button to move it from cold to hot or warm because it's already stored in the backend storage

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?

What do you like most about Splunk ITSI (IT Service Intelligence)?

Our mean time to detect is down to five minutes.

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)?

In terms of improvements for Splunk ITSI (IT Service Intelligence), I would suggest adding more out-of-the-box plugins and adapters, especially as there is a high demand for observability and dashb...

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Product Reports

Amazon OpenSearch Service

Download Amazon OpenSearch Service product report

Splunk ITSI (IT Service Intelligence)

Download Splunk ITSI (IT Service Intelligence) product report

Splunk ITSI (IT Service Intelligence) report

Also Known As

Amazon Elasticsearch Service

No data available

Overview

Amazon OpenSearch Service provides scalable and reliable search capabilities with efficient data processing, supporting easy domain configuration and integration with numerous systems for enhanced performance.

Amazon OpenSearch Service offers advanced features for handling JSON, diverse search grammars, quick historical data retrieval, and ultra-warm storage. It also includes customizable dashboards and seamless tool integration for large enterprises. With its managed infrastructure, OpenSearch Service supports efficient system analysis and business analytics, improving overall performance and flexibility. Despite these features, areas like configuration complexity, lack of auto-scaling, and integration with Kibana require attention. Users seek enhanced documentation, better pricing options, and more flexible data handling. Desired improvements include default filters, mapping configuration, and alerting capabilities. Enhanced data visualization and Compute Optimizer Service integration are also recommended for future updates.

What features define Amazon OpenSearch Service?

Scalable Search: Offers reliable search capabilities across vast datasets.
JSON Handling: Supports efficient management of JSON data.
Ultra-warm Storage: Enables cost-effective historical data retrieval.
Dashboard Customization: Supports tool integration and tailored visuals.
System Upgrades: Allows for seamless infrastructure upgrades.

What benefits and ROI should users consider?

Performance Enhancement: Significant improvement in search and data retrieval.
Cost-Effectiveness: Provides a cloud-native solution optimized for AWS environments.
Comprehensive Analytics: Delivers detailed insights for business applications.

Amazon OpenSearch Service is utilized in various industries for log management, data storage, and search capabilities. It supports infrastructure and embedded management, analyzing logs from AWS Lambda, Kubernetes, and other services. Companies use it for application debugging, monitoring security and performance, and customer behavior analysis, integrating it with tools like DynamoDB and Snowflake for a cost-effective solution.

Amazon Web Services (AWS)

Splunk ITSI offers intelligent alerting, predictive analysis, customizable dashboards, and improves visibility and monitoring through Service Analyzer and Glass Tables. Event correlation enhances incident management, reducing alert fatigue, and improves mean time to resolution.

Splunk ITSI enables businesses to proactively monitor their IT environments by offering functionalities that reduce noise and provide enhanced visibility through sophisticated dashboards. Service Analyzer and Glass Tables facilitate the monitoring of KPIs, allowing for the prompt identification of potential issues. The platform's event correlation capabilities streamline incident management. Its scalability efficiently supports large data volumes, integrating diverse data resources while incorporating AI for predictive insights. Future improvements are sought in integration, documentation, and user-friendly interfaces, with an emphasis on simplifying configurations in expansive deployments.

What are the Key Features of Splunk ITSI?

Intelligent Alerting: Provides proactive monitoring and noise reduction.
Service Analyzer: Enables KPI monitoring and issue identification.
Glass Tables: Allows visual monitoring of crucial metrics.
Event Correlation: Simplifies incident management and reduces alert fatigue.
Scalability: Supports large data volumes and integrates vast data sources.

What Benefits and ROI can Users Expect from Splunk ITSI?

Proactive Monitoring: Enhances ability to foresee and mitigate IT issues.
Improved Resolution Time: Accelerates incident resolution and operational efficiency.
Enhanced Business Resilience: Strengthens IT operations through detailed insights.

Industries leverage Splunk ITSI to monitor infrastructure and applications effectively, employing its Service Analyzer and KPI models. Especially in sectors requiring stringent incident management and predictive analytics, integrations like ServiceNow enable visual health assessments and automated anomaly detection, positioning ITSI as a manager of managers by enhancing IT operations with comprehensive reporting and alert correlations.

Splunk

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

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