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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
31st
Average Rating
7.0
Reviews Sentiment
4.6
Number of Reviews
2
Ranking in other categories
No ranking in other categories
OpenLegacy
Ranking in API Management
36th
Average Rating
7.6
Reviews Sentiment
6.2
Number of Reviews
5
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2025, in the API Management category, the mindshare of Apollo GraphOS is 0.4%, up from 0.0% compared to the previous year. The mindshare of OpenLegacy is 0.5%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
API Management Market Share Distribution
ProductMarket Share (%)
Apollo GraphOS0.4%
OpenLegacy0.5%
Other99.1%
API Management
 

Featured Reviews

Sagor Rana - PeerSpot reviewer
Efficiently filters API data though experiences slower performance with larger projects
I would like to see better performance in larger projects. When dealing with large amounts of data, it can become slow, causing users to potentially abandon the application. Improving performance and ensuring the app runs smoothly would enhance user experience. Stability issues, where it sometimes breaks down, need to be addressed as well.
reviewer1042905 - PeerSpot reviewer
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

"The most valuable features of Apollo GraphOS OS for me are its security and authentication processes."
"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."
"The biggest advantage of OpenLegacy was how simple the technology was. We were able to build out the OpenLegacy parts very quickly. We put 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."
"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."
"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."
"Opens the door to connect modern web products to an old legacy system."
"Using mainframe programs (not screens), the OpenLegacy services do not require any changes by the mainframe programmers, thus reducing development cycles."
"It is possible to solve larger legacy API issues on an enterprise level with this product."
 

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."
"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."
"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."
"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."
"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."
"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."
"Debugging and logging for programmers could be better."
"Customer support for the product is slow and not very good. It makes using the product difficult if you need help quickly."
 

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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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?
I would like to see better performance in larger projects. When dealing with large amounts of data, it can become slow, causing users to potentially abandon the application. Improving performance a...
What is your primary use case for Apollo GraphOS?
I primarily use Apollo GraphQL to work with APIs in conjunction with Node.js. When I make API calls, I receive a lot of information, but I only need specific details like names, emails, and photos....
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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...
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