OpenLegacy vs Retool comparison

Why PeerSpot?

OpenLegacy and Retool are both solutions in the AI Software Development category. OpenLegacy is ranked #62, while Retool is ranked #22 with an average rating of 7.8. OpenLegacy holds a 0.4% mindshare in ASD, compared to Retool’s 0.5% mindshare. Additionally, 80% of OpenLegacy users are willing to recommend the solution, compared to 100% of Retool users who would recommend it.

OpenLegacy

Read 5 OpenLegacy reviews

2,881 Views
1,124 Comparison Views

80% willing to recommend

Retool

Read 12 Retool reviews

3,153 Views
1,640 Comparison Views

100% willing to recommend

OpenLegacy

Retool

Comparison Buyer's Guide

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Executive Summary

We performed a comparison between OpenLegacy and Retool based on real PeerSpot user reviews.

Find out in this report how the two AI Software Development solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed OpenLegacy vs. Retool Report (Updated: September 2026).

Buyer's Guide

OpenLegacy vs. Retool

September 2026

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Helped 915,341 peers since 2012

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

OpenLegacy

Ranking in AI Software Development

62nd

Average Rating

7.6

Reviews Sentiment

6.2

Number of Reviews

Ranking in other categories

API Management (32nd)

Retool

Ranking in AI Software Development

22nd

Average Rating

8.0

Reviews Sentiment

6.8

Number of Reviews

Ranking in other categories

Rapid Application Development Software (20th)

Mindshare comparison

As of October 2026, in the AI Software Development category, the mindshare of OpenLegacy is 0.4%, up from 0.1% compared to the previous year. The mindshare of Retool is 0.5%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

AI Software Development Mindshare Distribution
Product	Mindshare (%)
Retool	0.5%
OpenLegacy	0.4%
Other	99.1%

AI Software Development

Featured Reviews

reviewer1042905

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.

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Yannick LE GAL

IT consultant for healthcare sector at Freelancer

Has provided a quick way to build mobile apps and could improve usability for non-technical users

The best features Retool offers include the ability to quickly create a mobile app and use this mobile app in a native mobile app for Android. I found the process of creating and deploying those mobile apps for Android with Retool to be smooth as the documentation is very good, and I found answers and examples to create a mobile app. I can access a debug mode in the mobile app which was really convenient to make tests and find what can be improved, where I have a problem, and how to correct it. Retool positively impacted my organization as the proof of concept we built gave us a way to convince power users and key users before developing the real software. It was a way to maintain the launch date of the project, which helped speed up the project timeline and save resources.

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Quotes from Members

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

Pros

"It is possible to solve larger legacy API issues on an enterprise level with this product."

"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."

"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."

"OpenLegacy opens the door to connect modern web products to our old legacy system."

"Without OpenLegacy, it would take us several months to create the same services."

"The speed of development of production, especially in specific environments like IBM mainframes, has been valuable."

"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."

More OpenLegacy pros

"Retool positively impacted my organization as the proof of concept we built gave us a way to convince power users and key users before developing the real software."

"With the help of Retool, we saved a lot of time; for instance, we made a similar project before that took two to three weeks to implement the same features, but with Retool, we could check our API right away very quickly, saving around twenty percent of our time and allowing us to visualize how our API works, see the drawbacks, and make changes to our FastAPI backend."

"Retool can be used with many applications as it is language independent; anyone can use it easily and create various visualizations regardless of their programming knowledge—this is the main reason I recommend it."

"We have seen a return on investment because we are building these internal dashboards 30 to 50% faster, so we are saving approximately 30 to 50% of an employee's time."

"Retool provides us with the opportunity to save time and be more efficient."

"Retool provides built-in features with all processing happening within the platform, which is a significant advantage."

"Retool's most valuable features are its drag-and-drop components and the ability to customize them extensively."

"Retool positively impacts our organization by saving costs compared to using other data repositories, and teams prefer Retool for daily tasks that perform customizations to showcase web pages or link their data backend, making it more efficient and cost-effective than other software available in the market."

More Retool pros

Cons

"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."

"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."

"Debugging and logging for programmers could be better."

"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."

"Customer support for the product is slow and not very good. It makes using the product difficult if you need help quickly."

"Retool should add more resource integration."

"The components are changed frequently, which is very irritating."

"My experience with pricing, setup cost, and licensing for Retool is that it is straightforward but somewhat pricey compared to other industry leaders such as Sentry and others."

"AI tools, features, and machine learning capabilities should be added as they would be helpful in the future."

"There are restrictions on the front-end side."

"The solution lacks inbuilt customization to customize bar charts."

"Retool could enhance support, including efforts to establish support centers in Europe, which was lacking previously. However, the community is still in the growth phase, leading to potential delays in receiving responses to queries."

"Retool is more suited for startups, but it can get messy at scale."

More Retool cons

Pricing and Cost Advice

"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."

"For me, I'm in India right now, and we have Retool's subscription for one team member for $10 per month."

"The pricing is very expensive. It costs for each user, for automated users, open-end users, et cetera."

"The tool is a little bit expensive."

"I don't know Retool's current pricing, but it cost around $12 per month earlier."

"For new users, evaluate the scale of their administrative needs as Retool provides excellent free services for smaller setups, but larger deployments might require transitioning to a paid plan."

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Top Industries

By visitors reading reviews

Construction Company

24%

Comms Service Provider

14%

Financial Services Firm

14%

Manufacturing Company

10%

Construction Company

19%

Comms Service Provider

15%

Manufacturing Company

11%

Financial Services Firm

10%

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	7
Midsize Enterprise	3
Large Enterprise	4

Questions from the Community

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What is your experience regarding pricing and costs for Retool?

My experience with pricing, setup cost, and licensing for Retool is that it is straightforward but somewhat pricey compared to other industry leaders such as Sentry and others. I feel it is an eigh...

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What needs improvement with Retool?

I do not have specifics on how Retool can be improved because we are using it for internal tool building only. Regarding needed improvements, perhaps Retool can focus on not building customer-facin...

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What is your primary use case for Retool?

We started using Retool last September, so it has been more than nine months now. Our main use case for Retool is an internal operations dashboard built in Retool for our AI agents. Whenever we shi...

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Product Reports

Buyer's Guide

OpenLegacy

September 2026

Download OpenLegacy product report

Buyer's Guide

Retool

September 2026

Download Retool product report

Overview

OpenLegacy integrates legacy customer data with REST APIs, speeding up mobile transactions and code updates while simplifying API development. Its open-source platform offers flexibility, benefiting mainframe environments and Tomcat server deployments.

OpenLegacy is crucial for organizations aiming to integrate modern web applications with legacy systems. The platform is widely used in financial and logistics sectors to enable quick access to customer data and transactions, effectively monetizing mainframe assets. By facilitating the rapid creation of numerous APIs, OpenLegacy supports seamless interactions between applications, allowing modern web form inputs into legacy systems. Its flexibility and extensive capabilities simplify API development and deployment, proving valuable for those managing day-to-day banking and transaction data. However, room for improvement includes better debugging, logging, SSL integration, flexible pricing options, and support availability, especially for Hogan mainframe users.

What features define OpenLegacy?

REST API Integration: Facilitates integration with mobile transactions.
Faster Code Updates: Delivers efficiency in code changes for mainframe environments.
Open-Source Flexibility: Offers customization and broad capabilities.
Tomcat Deployment: Supports straightforward deployment via Tomcat servers.
Rapid API Development: Enables swift creation of multiple APIs.

What ROI benefits should users expect?

Legacy System Monetization: Transforms mainframe assets into profit.
Improved Integration: Enhances access to critical customer data and transactions.
Efficient Operations: Streamlines daily banking and transaction management.
Cost-Effectiveness: Flexibility and open-source nature reduce expenses.
Enhanced Interoperability: Allows seamless interaction between old and new applications.

Financial and logistics companies leverage OpenLegacy to link web applications with legacy systems, ensuring quick customer data and transaction access. This integration supports rapid solution building and efficient management of banking and transaction data, particularly benefiting institutions like US Bank and Wells Fargo needing comprehensive Hogan mainframe connectors.

OpenLegacy

Retool enables rapid construction of internal tools with minimal coding, streamlining workflows across HR, customer support, and compliance. Praised for its drag-and-drop interface, extensive component library, and SQL support, it boosts organizational efficiency by automating tasks and enhancing data management.

Retool

Sample Customers

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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Buyer's Guide

OpenLegacy vs. Retool

September 2026

Free Report: OpenLegacy vs. Retool

Find out what your peers are saying about OpenLegacy vs. Retool and other solutions. Updated: September 2026.

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