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Amazon OpenSearch Service vs Prometheus Group comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 8, 2025

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)
Prometheus Group
Ranking in Application Performance Monitoring (APM) and Observability
10th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
34
Ranking in other categories
No ranking in other categories
 

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 Prometheus Group is 2.9%, down from 3.7% 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…
MuhammadAzhar Khan - PeerSpot reviewer
Free to use and provides valuable monitoring capabilities
Prometheus is a scalable and flexible tool that I can deploy on any cloud platform. It is free to use and provides valuable monitoring capabilities. It allows me to save money by avoiding costs associated with AWS native services like CloudWatch or Amazon Prometheus. The ability to deploy on any cloud platform or environment, including Kubernetes, is a major advantage.

Quotes from Members

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

Pros

"This service already sorts data like vectors. They have classified the storage pre-defined."
"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 business analytics capabilities are the most important feature it provides."
"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"
"I would definitely recommend Amazon OpenSearch Service to other professionals due to its fast and reliable search capabilities."
"The customer service is excellent, rated nine out of ten."
"Amazon OpenSearch Service provides a managed database solution, so we don't need to manage everything ourselves."
"Prometheus is a scalable and flexible tool that I can deploy on any cloud platform."
"It has lots of APIs and libraries to integrate with any kind of language."
"The best thing about Prometheus is its integration."
"The product's initial setup phase is very easy."
"The most valuable features of Prometheus are the many functions available. The functions are helpful for understanding the behavior of applications and infrastructure."
"The most valuable features of the solution are metrics scraping capabilities and the open source community and support."
"It lets me proactively identify and resolve system issues. This, in terms of, most of the time, really reduces downtime. Because when there are notifications on time when we engage it quickly on time, our downtime is highly reduced. So basically, Prometheus is for monitoring and alerting."
"The resilience of the solution's metric collection is very nice."
 

Cons

"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."
"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 price is fair yet leans towards the expensive side. I'd rate it five out of ten with respect to capabilities vs. cost."
"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."
"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."
"One improvement I would like to see is support for auto-scaling."
"I would like to see improvement in the analysis tools and customization features."
"Prometheus' UI color can improve. Using the Prometheus UI for configuration or analyzing queries is a horrible experience."
"The query language in Prometheus is an area of concern where improvements are required."
"There is a tool called Prometheus Exporter that doesn't work well."
"The setup process could be more straightforward."
"Prometheus can definitely improve its visualization. For example, the matrices represented in Prometheus do not have a very good visualization on their dashboard."
"They could provide efficient logs in terms of clarity and ease of access similar to Datadog’s paid version."
"A slight alteration to the user interface should be made to increase efficiency and streamline the process. Currently, we are utilizing Prometheus to gather and compile metrics and then utilizing Grafana to display them in the form of a graph. However, I believe that Prometheus has the capability to handle both of these tasks on its own, with perhaps the addition of a supplementary plugin. By doing so, the need for utilizing two separate applications will be eliminated."
 

Pricing and Cost Advice

Information not available
"The product is free."
"Prometheus is available as an open-source product."
"Prometheus is an open-source tool."
"The price of Prometheus is good, it is affordable because it is open source and there is no cost to it. You put it on your own server and the costs incurred completely depend on how you set it up."
"The solution is open source."
"The solution is free of cost."
"It is an open-source tool."
"The product is expensive compared to Datadog."
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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
23%
Computer Software Company
15%
Manufacturing Company
6%
Government
6%
 

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 do you like most about Prometheus?
The most valuable feature of Prometheus is its ability to collect metrics.
What is your experience regarding pricing and costs for Prometheus?
Prometheus is cost-effective for me as it is free. Using cloud-native alternatives like Amazon Prometheus would incur charges.
What is your primary use case for Prometheus?
I use Prometheus for monitoring purposes in IT infrastructure. It is particularly useful for environments using Kubernetes, as it monitors ports, containers, instances, and applications effectively.
 

Overview

Find out what your peers are saying about Amazon OpenSearch Service vs. Prometheus Group and other solutions. Updated: July 2025.
864,155 professionals have used our research since 2012.