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GeneXus vs Mendix vs OutSystems 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:
 

ROI

Sentiment score
7.1
GeneXus offers high ROI for large companies, excels in banking apps, and is effective for both extensive and limited user systems.
Sentiment score
7.2
Mendix provides a free version, reducing development time and costs, leading to significant growth and ROI for users.
Sentiment score
7.0
OutSystems provides high ROI with faster app creation, cost-saving strategies, and positive user feedback despite some cost concerns.
 

Customer Service

Sentiment score
7.6
GeneXus customer service is fast, knowledgeable, cooperative, usually responding within 24 hours, and generally rated highly by users.
Sentiment score
7.1
Mendix is praised for responsive support, active community, knowledge resources, though some note slow responses and improved resolution times.
Sentiment score
7.2
OutSystems support is generally responsive but experiences vary, with better service at higher contract levels and valued documentation.
I haven't often needed to seek direct support from Mendix teams as their online resources and knowledge database are comprehensive.
Mendix provides proper support, troubleshooting options, and a helping community.
The technical support from Mendix is very good.
 

Scalability Issues

Sentiment score
8.4
GeneXus is scalable and adaptable, supporting growth from small projects to large systems with high ratings for ease and efficiency.
Sentiment score
7.0
Mendix scales well for enterprises, though users face challenges with large databases and public cloud constraints.
Sentiment score
7.7
OutSystems is scalable and robust, ideal for enterprise-level growth, especially in cloud-based and multi-tenant environments.
Mendix supports scaling well with its comprehensive online documentation and learning paths.
Mendix provides options for handling scalability and maintainability through features like validation, workflow and nanoflow minimization, and user components, enabling projects to be easily managed and scaled.
 

Stability Issues

Sentiment score
8.1
GeneXus offers high stability with bi-monthly upgrades, rated 8-10 by users, best suited for simpler front-end applications.
Sentiment score
7.4
Mendix is stable and reliable, with quick bug fixes, adaptable support, and high ratings for performance and stability.
Sentiment score
8.0
OutSystems is stable and reliable, highly rated for support and scalability but faces issues with massive user bases.
I recently encountered an issue with deploying applications on the Mendix sandbox, which took a week to resolve.
 

Room For Improvement

GeneXus requires better front-end, training, security, integration, collaboration, market awareness, UI, code speed, cost, community, alerts, performance, and language support.
Users seek better templates, UX/UI, integration, reporting, scalability, AI, and support, criticizing complexity and documentation.
OutSystems needs performance, integration, and cost improvements, along with better documentation, UI, AI integration, and cloud management.
Access to the database is limited in Mendix's public cloud, preventing direct database interaction or inspection.
It is not one hundred percent stable.
I would like to see more integration between the use of artificial intelligence to speed up the process delivery time.
 

Setup Cost

GeneXus offers costly multi-plan licenses but justifies the price by replacing multiple developers and including maintenance and upgrades.
Mendix is pricier but reduces development time; ideal for large enterprises, region-specific pricing can be negotiated.
OutSystems pricing is often considered high, with costs based on user metrics, impacting small businesses but saving development time.
The app license costs between $13,000 to $14,000, which is prohibitive for startups.
 

Valuable Features

GeneXus offers rapid deployment, seamless tech integration, error detection, multi-language support, automation, and a user-friendly architecture.
Mendix offers rapid app development with low-code capabilities, visual interface, system integrations, Agile support, and robust scalability.
OutSystems excels in low-code development, effortless integration, and user-friendly features, making it a versatile and scalable platform.
Mendix's integration capabilities are impressive, allowing for rapid and on-the-fly integration of almost anything imaginable.
Mendix offers validation, workflow and nanoflow minimization, user components, and follows best practices, making applications easily manageable and scalable.
Mendix provides the ability to create solutions that fill gaps that I would otherwise be unable to address with standard software.
OutSystems offers a lot of reusable components and solutions that I can simply drag and drop and use, which has a significant impact on project delivery time.
 

Mindshare comparison

As of May 2025, in the Low-Code Development Platforms category, the mindshare of GeneXus is 0.9%, up from 0.6% compared to the previous year. The mindshare of Mendix is 8.8%, down from 12.1% compared to the previous year. The mindshare of OutSystems is 10.2%, up from 9.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Low-Code Development Platforms
 

Featured Reviews

XavierEspinoza - PeerSpot reviewer
Offers a simplified architecture with outstanding integration capabilities
The integration capabilities of GeneXus are highly valuable for our organization. The metadata obtained within the logic of different systems is also vital. Due to the solution, our company team doesn't have to work with multiple languages and integrations can be made with C Sharp. JavaScript can also be used with GeneXus, the tool takes charge of all the rest and has a simple architecture. The solution can be used out of the box without facing any issues and nothing much needs to be done with frameworks. In our case we need to use Python with GeneXus, we use Ironpython to embed python code in C# .
Sameer Verma - PeerSpot reviewer
Low-code, helpful support, and great native mobile capability
There is always a layer of custom code required. There is a misconception of low-code, or Mendix, or the industry in general. They are perceived as more of a dashboarding tool, and as a visualization platform only, rather than building a complete enterprise solution. That's more of an awareness marketing challenge they have, or the industry has. In general, AI needs to be better. The team and the company is running ahead with this a bit more. AI area is something which companies have started to pick up on, low-code wise, and they should invest in it more. I would like to see their data hub module become a little bit more mature. They need to expand their base as the concept is amazing. We just need to see more use cases and learn more capabilities there, and then definitely they need to fill in the AI piece of it.
Bireswar Das - PeerSpot reviewer
A low-code platform for the development of mobile and web enterprise applications
To illustrate a case, the customer initially had a private cloud, essentially a data center hosted within it. They needed a disaster recovery solution, which would involve using a public cloud. This situation led to some deployment challenges due to the hybrid nature of their setup. However, once we implemented the solution for them, they were extremely satisfied. The process was not only effective but also quite speedy. To be more precise, we completed it in around 100 days, even though they initially requested it to be done in four months. They were very pleased with the efficiency of the implementation.
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
11%
Manufacturing Company
8%
Construction Company
7%
Computer Software Company
16%
Manufacturing Company
13%
Financial Services Firm
9%
University
6%
Educational Organization
28%
Computer Software Company
13%
Financial Services Firm
8%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about GeneXus?
GeneXus evolves with technology.
What needs improvement with GeneXus?
GeneXus needs to be more consistent in functionality without any errors. Code generation is highly time-consuming for...
What is your primary use case for GeneXus?
Our company uses the latest version of GeneXus. The solution is used in our company to develop various enterprise sys...
What do you like most about Mendix?
We also use Mendix Enterprise Integration for complex business logic. It's a low-code platform, so we run Mendix in t...
What is your experience regarding pricing and costs for Mendix?
I have some idea about the licensing part, and it depends on the person and the number of applications.
What needs improvement with Mendix?
Currently, I do not see any improvements needed in Mendix. However, I have not used Mendix for the last few months, s...
Which solution is better for developing non-ITSM applications: OutSystems or Service Now?
The short answer is that OutSystems is far better for 2 main reasons. Firstly, with Service Now you are locked into t...
What industries do you think OutSystems is most useful for?
I cannot really name an industry in which OutSystems cannot be beneficial. Who does not want to make top-notch applic...
How did you decide which OutSystems edition was the best one for you?
We started using OutSystems fairly recently, so we are still on the free version of it. My company is still testing ...
 

Overview

 

Sample Customers

Canal de Panamá, Gerdau, Coca-Cola, Mercado Libre, DHL, Mitsubishi Heavy Industries, TECNISA, Mexican Polak Group, Ferrovalle, Canon, Azteca, KPMG, TURBUS, Santander, BBVA
Genzyme, TNT, Yahoo, Capgemini, Roche, D&B, Aegon, kpn, AZL, Sky, Arch, Penn State Univeristy, BancABC
Randstad, Warner Brothers, HP, Intel, ING, Banco Popular, Thrivent Financial, Bacardi, Kent State University, Bacardi, FICO, ING, Vodafone, AbbVie, Estafeta, Siemens, Vopak
Find out what your peers are saying about Microsoft, OutSystems, Oracle and others in Low-Code Development Platforms. Updated: May 2025.
850,236 professionals have used our research since 2012.