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Amazon OpenSearch Service vs Prometheus Group comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 3, 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
35th
Average Rating
7.8
Reviews Sentiment
7.5
Number of Reviews
5
Ranking in other categories
Log Management (30th)
Prometheus Group
Ranking in Application Performance Monitoring (APM) and Observability
9th
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 April 2025, in the Application Performance Monitoring (APM) and Observability category, the mindshare of Amazon OpenSearch Service is 1.7%, up from 0.0% compared to the previous year. The mindshare of Prometheus Group is 3.4%, down from 3.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Performance Monitoring (APM) and Observability
 

Featured Reviews

VijayKumar27 - PeerSpot reviewer
Effective as a vector store, serverless architecture but there aren't enough security features
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. Even being serverless, it incurs charges during idle times. For just holding data, you need to create a list. AWS should add an option to make data idle, so it won't include computing charges. They charge for OCU units based on the time the serverless solution is up, not on indexing or retrieval speed. Once the service starts, it starts getting billed. It would help if there were an option to limit computing. When using it as a database, storing data without frequent fetching would save computing costs.
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

"Amazon OpenSearch Service has enhanced our organization's ability to store and search large amounts of data efficiently."
"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."
"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"
"The customer service is excellent, rated nine out of ten."
"The business analytics capabilities are the most important feature it provides."
"Prometheus is a scalable and flexible tool that I can deploy on any cloud platform."
"The resilience of the solution's metric collection is very nice."
"The good thing is it integrates well with the Grafana dashboard. It comes with a UI where you see everything as a graph."
"The product has an easy-to-understand interface."
"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 best thing about Prometheus is its integration."
"The solution helps us to scale our products and services, and it helps me by gathering those metrics."
"The product's initial setup phase is very easy."
 

Cons

"They can enhance data visualization."
"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."
"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."
"One improvement I would like to see is support for auto-scaling."
"One improvement I would like to see is support for auto-scaling."
"Prometheus can definitely improve its visualization. For example, the matrices represented in Prometheus do not have a very good visualization on their dashboard."
"The scalability must be improved."
"One potential area for improvement would be fixing the occasional glitches and bugs."
"The interface is not particularly user-friendly and that could be improved."
"The setup process could be more straightforward."
"They could provide efficient logs in terms of clarity and ease of access similar to Datadog’s paid version."
"There is a tool called Prometheus Exporter that doesn't work well."
"I would like to see improvement in the analysis tools and customization features."
 

Pricing and Cost Advice

Information not available
"The solution is not expensive."
"This is an open-source solution."
"Prometheus is an open-source tool."
"It is an open-source tool."
"Prometheus is an open-source solution."
"The solution is open source."
"We use the solution's open-source version."
"My company uses the open-source version of the product."
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Top Industries

By visitors reading reviews
Financial Services Firm
15%
Computer Software Company
14%
Manufacturing Company
8%
Comms Service Provider
5%
Financial Services Firm
25%
Computer Software Company
15%
Manufacturing Company
7%
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?
Amazon OpenSearch Service is a bit costly compared to self-hosted Elasticsearch due to the managed service pricing.
What needs improvement with Amazon OpenSearch Service?
I did not delve deeply into Amazon OpenSearch Service, so I am unable to suggest specific improvements. However, we faced documentation challenges during integration after migrating from Elasticsea...
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: April 2025.
848,716 professionals have used our research since 2012.