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

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jul 24, 2024

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
7.2
Reviews Sentiment
7.2
Number of Reviews
6
Ranking in other categories
Log Management (22nd)
Splunk ITSI (IT Service Int...
Ranking in Application Performance Monitoring (APM) and Observability
11th
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
50
Ranking in other categories
IT Alerting and Incident Management (4th)
 

Mindshare comparison

As of August 2025, in the Application Performance Monitoring (APM) and Observability category, the mindshare of Amazon OpenSearch Service is 2.1%, up from 0.3% 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
 

Featured Reviews

Johnny Suleiman - PeerSpot reviewer
Scalability is a key feature as it allows easy scaling of the platform without downtime
OpenSearch is used as a search engine for specific logs, mainly in e-commerce and monitoring the logs themselves. It is very valuable for e-commerce, enabling data analysis on application logs and customer behavior, and can be integrated with other services, including AI and machine learning…
Srinivasulu Soolluru - PeerSpot reviewer
It speeds up incident response by automating alerts and ticket creation
When configuring a dashboard, we can write search criteria. Based on the search criteria, the dashboard shows all the alerts, including the alert time, creation time, and a summary description of the alert. When you add an extra column, such as the user that triggered the alert, the next time he refreshes the dashboard, he wants to know that the alert is acknowledged. We want to improve that comment feature. In the Service Analyzer, we monitor the network infrastructure services and have a KPI for each service. When the value exceeds the threshold value, we can add the colors. For example, we can set it to green when the threshold value is within the limit. If it is red, then the value has passed the threshold. We want more colors in the service analyzer to display all these features.

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."
"Amazon OpenSearch Service has enhanced our organization's ability to store and search large amounts of data efficiently."
"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."
"The customer service is excellent, rated nine out of ten."
"This service already sorts data like vectors. They have classified the storage pre-defined."
"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"
"Amazon OpenSearch Service provides a managed database solution, so we don't need to manage everything ourselves."
"I would definitely recommend Amazon OpenSearch Service to other professionals due to its fast and reliable search capabilities."
"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 glass tables are very helpful."
"Splunk ITSI offers a valuable visualization tree that allows us to map and analyze dependencies and co-dependency within our environment."
"Splunk's intuitive interface and scalability make it accessible to non-technical users, and its capacity to monitor every millisecond of data across multiple applications is truly impressive."
"Alerts and episodes are valuable to me."
"We liked the built-in calculation of health scores."
"The solution's scalability is fine."
"ITSI's most valuable feature is that it's easy to integrate DLP."
 

Cons

"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."
"The price is fair yet leans towards the expensive side. I'd rate it five out of ten with respect to capabilities vs. cost."
"They can enhance data visualization."
"One improvement I would like to see is support for auto-scaling."
"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."
"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."
"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."
"The license cost is expensive."
"If the product had some prebuilt machine learning features, it would add value to our use cases."
"We have problems doing upgrades and operating alternate new versions."
"I believe the refresh time should be faster."
"It would be advantageous to enhance the dashboard by incorporating sections for monitoring, service health, and a filter for the KPIs."
"Integration is the most critical area to improve in Splunk IT Service Intelligence (ITSI). It wasn't a great experience because you had to do a little back and forth to integrate the solution."
"If they can somehow integrate it with AI in the near future, it will definitely be a game changer."
"We're using predictive analytics, and there are three or four algorithms. It would be helpful if this process were more standardized and scalable."
 

Pricing and Cost Advice

Information not available
"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."
"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."
"It would have been good if the product cost was much lower."
"I would prefer that the price be reduced, as it would be easier to implement it and to sell it."
"It depends on how big an organization is. If we have a lot of resources, the licensing needs to be upgraded. If we have a small environment, the licensing cost is definitely going to be less."
"Splunk ITSI is expensive."
"I know that it is expensive, but I do not think there is another solution that can do similar things for that price."
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Top Industries

By visitors reading reviews
Financial Services Firm
15%
Computer Software Company
14%
Manufacturing Company
9%
Government
6%
Financial Services Firm
20%
Government
10%
Computer Software Company
10%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

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?
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 t...
What is your experience regarding pricing and costs for Splunk ITSI (IT Service Intelligence)?
Pricing can vary significantly based on the selected modules and deployment choices. Splunk ITSI tends to be more expensive compared to some open-source solutions.
What needs improvement with Splunk ITSI (IT Service Intelligence)?
Splunk ITSI could benefit from including more features that other solutions support, such as vulnerability management modules. This would help manage vulnerabilities effectively, allowing my organi...
 

Overview

 

Sample Customers

Information Not Available
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: July 2025.
864,053 professionals have used our research since 2012.