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Apollo GraphOS vs OpenLegacy comparison

 

Comparison Buyer's Guide

Executive Summary

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

Apollo GraphOS
Ranking in API Management
29th
Average Rating
7.4
Reviews Sentiment
3.7
Number of Reviews
3
Ranking in other categories
No ranking in other categories
OpenLegacy
Ranking in API Management
32nd
Average Rating
7.6
Reviews Sentiment
6.2
Number of Reviews
5
Ranking in other categories
AI Software Development (83rd)
 

Mindshare comparison

As of July 2026, in the API Management category, the mindshare of Apollo GraphOS is 0.7%, up from 0.3% compared to the previous year. The mindshare of OpenLegacy is 1.4%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
API Management Mindshare Distribution
ProductMindshare (%)
Apollo GraphOS0.7%
OpenLegacy1.4%
Other97.9%
API Management
 

Featured Reviews

NA
Artificial Intelligence Consultant at Medallion Technologies
Access data seamlessly with robust community support without current improvement needs
So far, I could say that Apollo GraphOS is quite comprehensive, there’s room for improvement in schema collaboration tools, especially in large teams where multiple developers are working on overlapping parts of the API. More granular access control and role-based visibility within the platform would help enterprise teams better manage who can change what. Enhanced support for real-time use cases (e.g., subscriptions at scale) could also take it to the next level and give a better developer experience These might also be beneficial to have a more in-depth analytics around client usage and field-level insights to drive better decisions around deprecation or optimization.
reviewer1042905 - PeerSpot reviewer
VP, Chief Enterprise Integration Architect at a financial services firm with 10,001+ employees
The biggest advantage is how simple the technology was.
I'd like to see OpenLegacy develop its low-code/no-code (LCNC) solutions. They've expanded somewhat their horizons for integration beyond mainframe CICS, which is their sweet spot. They have some tooling in that area, but it's not as good as it needs to be. OpenLegacy handles the bread-and-butter TP monitoring stuff, but I am working for one of the six banks in the United States still using the Hogan mainframe, which has a slightly proprietary mechanism. But OpenLegacy currently doesn't have a connector for Hogan. So it would help if they could build one. That would appeal to financial institutions that still use Hogan, like US Bank, Wells Fargo, KeyBank, and Vanguard.

Quotes from Members

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

Pros

"Apollo GraphOS has significantly enhanced both the developer experience and product delivery timelines by offering a centralized approach to managing GraphQL schemas and services, helping reduce overhead and improve collaboration between frontend and backend teams."
"The most valuable features of Apollo GraphOS OS for me are its security and authentication processes."
"Apollo GraphOS has positively impacted our organization by reducing unwanted code and helping us combine multiple services."
"OpenLegacy provides a way to go from the outside world to the legacy mainframe, to move the old standard application to a REST API application. New digital services can be created in a few clicks and this can be done easily by COBOL programmers."
"The biggest advantage of OpenLegacy was how simple the technology was, and we were able to build out the OpenLegacy parts very quickly, putting together a couple hundred APIs in six months."
"It is possible to connect a service to a mainframe program or back transaction in a matter of minutes or hours at the most."
"The product has helped our business by allowing us to become more efficient in data handling."
"It is possible to solve larger legacy API issues on an enterprise level with this product."
"Using OpenLegacy, the exposure of services is far easier and quicker. In many cases, exposure of services requires just a few clicks and takes only minutes. In very complex cases, it still only takes half a day. Without OpenLegacy, it would take us several months to create the same services."
"OpenLegacy produces a war file which includes everything you need to deploy a Tomcat server."
"Using mainframe programs (not screens), the OpenLegacy services do not require any changes by the mainframe programmers, thus reducing development cycles."
 

Cons

"There’s room for improvement in schema collaboration tools, especially in large teams where multiple developers are working on overlapping parts of the API."
"Apollo GraphOS OS is using a detailed project, and it can be time-consuming because it has a lot of data to manage. It sometimes takes longer than three seconds, which can affect loading times and lead to user dissatisfaction. I would like to see improved performance."
"Debugging and logging for programmers could be better."
"I'd like to see OpenLegacy develop its low-code/no-code (LCNC) solutions. They've expanded somewhat their horizons for integration beyond mainframe CICS, which is their sweet spot. They have some tooling in that area, but it's not as good as it needs to be."
"We would also be more than happy if the product had the option to work in the opposite direction – the ability to consume REST/SOW services in the outer world from the mainframe."
"Customer support for the product is slow and not very good. It makes using the product difficult if you need help quickly."
"The pricing of the solution could be more flexible and allow for once-off payment versus annual licensing. This would be more appealing to companies in Latin America."
"I would like to see SSL out-of-the-box. OpenLegacy certainly does SSL, but it was not the default for our use case. We are currently working with OpenLegacy to cross the SSL bridge and suspect that most users will want to do the same."
 

Pricing and Cost Advice

Information not available
"The pricing of the solution could be more flexible and allow for once-off payment versus annual licensing. This would be more appealing to companies in Latin America."
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Top Industries

By visitors reading reviews
Financial Services Firm
17%
University
13%
Manufacturing Company
11%
Construction Company
6%
Construction Company
23%
Financial Services Firm
13%
Comms Service Provider
12%
Manufacturing Company
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Apollo GraphOS?
I am not sensitive to nor very knowledgeable about the pricing and setup cost.
What needs improvement with Apollo GraphOS?
Apollo GraphOS is a strong platform, but there are a few areas where it could improve. The onboarding experience could be simpler for teams that are new to GraphQL. There are many powerful capabili...
What is your primary use case for Apollo GraphOS?
My main use case for Apollo GraphOS is managing and monitoring GraphQL APIs across multiple services. From a quality engineering perspective, I use it to understand schema changes, identify potenti...
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Overview

 

Sample Customers

Information Not Available
Many of openLegacy's global customers are among the Global 100 companies. Review case studies in these industries: Agriculture, Airport Authority, Automotive, Auto, Finance, Insurance, Government, Healthcare, Manufacturing, and Retailwww.openlegacy.com/case-studie...
Find out what your peers are saying about Apollo GraphOS vs. OpenLegacy and other solutions. Updated: June 2026.
902,988 professionals have used our research since 2012.