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Mendix vs OutSystems vs Temenos Quantum 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
6.5
Mendix offers cost savings and quick app development but substantial fees may affect overall investment returns for some users.
Sentiment score
6.1
OutSystems typically offers high ROI through fast development and cost savings, though initial expenses and developer skills impact outcomes.
Sentiment score
7.8
Organizations using Temenos Quantum report increased development efficiency, cost savings, improved security, seamless integration, and scalable architecture benefits.
It's not that they're really firing that personnel, but they can often focus on the core that really matters instead of repetitive processes in Excel forms and all of the overhead and human error that comes with that.
CTO at Blue Green Solutions
Since Mendix is a low-code platform, the ROI is significant; we save a lot of money and require fewer people to do an application, reduced to two, which drastically decreases development time because this is not traditional programming; just drag and drop, and we can complete projects that would take years within months.
SOFTWARE ENGINEER at Siemens Industry
I have seen a return on investment with Mendix, as in default software development, a team with 10 developers or more is needed, while here we can do it with one or two developers, so it is truly a money saver for the company.
Software Engineer at a tech services company with 11-50 employees
Developing that same project in OutSystems can be completed in around 40 to 50% less time, requiring only six resources.
Software Developer Advisor at NTT DATA Services
 

Customer Service

Sentiment score
7.0
Mendix support is responsive and helpful, with efficient issue resolution and valuable online resources, though non-pay users may face challenges.
Sentiment score
7.0
OutSystems' service is generally proactive and responsive, but advanced help varies by SLA, location, and contract tier.
Sentiment score
5.7
Temenos Quantum's support is generally helpful with a good ticketing system, but response times and experiences vary.
I haven't often needed to seek direct support from Mendix teams as their online resources and knowledge database are comprehensive.
Mendix Developer at Plieger
Mendix provides proper support, troubleshooting options, and a helping community.
Senior Software Engineer at a retailer with 5,001-10,000 employees
If it's about having an issue that I can't solve despite being a Mendix expert and having tried every single bit and piece, support can feel like a stone wall.
CTO at Blue Green Solutions
Many helpful videos and documentation are available on the OutSystems site, making it relatively easy to learn the platform.
Software Developer Advisor at NTT DATA Services
There have been no issues with support,
Project Manager at Centre for Content Creation
 

Scalability Issues

Sentiment score
7.0
Mendix offers smooth scalability and flexibility but may face challenges with larger user numbers and public cloud environments.
Sentiment score
7.5
OutSystems offers scalable, adaptable solutions for enterprises, with seamless cloud expansion and efficient management, despite pricing concerns.
Sentiment score
7.0
Temenos Quantum is praised for scalability and performance, supporting 100-1000 users, despite some complexity concerns compared to Flutter or React.
Mendix supports scaling well with its comprehensive online documentation and learning paths.
Mendix Developer at Plieger
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.
Senior Software Engineer at a retailer with 5,001-10,000 employees
Also solutions processing data at scale, talking about one million packages a day.
CTO at Blue Green Solutions
They can be deployed vertically and horizontally, supporting as many deployments as needed.
Software Developer Advisor at NTT DATA Services
 

Stability Issues

Sentiment score
7.4
Mendix offers stable performance with effective support, though large deployments may face challenges; stable versions are recommended.
Sentiment score
7.8
OutSystems is praised for stability and reliability, handling large systems well, with minor issues on high data loads.
Sentiment score
7.5
Temenos Quantum is stable and reliable with frequent updates, but areas like pending applications and front-end need improvement.
Mendix has been stable in my experience, with reliable performance for enterprise applications and minimal downtime or critical issues.
Software Development Intern at a educational organization with 1,001-5,000 employees
I recently encountered an issue with deploying applications on the Mendix sandbox, which took a week to resolve.
Mendix developer at a tech vendor with 10,001+ employees
 

Room For Improvement

Mendix needs better UI, reporting, integration, pricing clarity, AI features, and improved stability, documentation, and training resources.
OutSystems faces performance and integration issues, high licensing costs, and needs improvements in support, automation, UI, and documentation.
Temenos Quantum requires security, interface, and stability enhancements, better integration, faster support, flexible widgets, and improved development tools.
Access to the database is limited in Mendix's public cloud, preventing direct database interaction or inspection.
Mendix developer at a tech vendor with 10,001+ employees
I choose a seven mainly due to the issues we've faced with slowdowns and bugs during development, while runtime has been very stable.
CTO at Blue Green Solutions
Native development is not very strong, and some developer tools are missing, such as shortcuts to edit multiple variables.
Software Development Intern at a educational organization with 1,001-5,000 employees
It is crucial to be aware of which module corresponds to which application in real-time projects, as there are multiple applications.
Software Developer Advisor at NTT DATA Services
I would like to see more integration between the use of artificial intelligence to speed up the process delivery time.
RPA Engineer at a computer software company with 10,001+ employees
What I would like to see is more servicing business analysts in the next release of OutSystems.
Senior ITO Consultant at CBI - Centre for the Promotion of Imports from developing countries
 

Setup Cost

Mendix pricing is high for small businesses but offers transparency and potential discounts for large enterprises and long-term commitments.
OutSystems is costly, suited for larger enterprises, with yearly fees varying by usage, covering licenses and infrastructure.
Temenos Quantum is costly, with prices ranging from $70,000 to $500,000, though some users find it affordable.
The app license costs between $13,000 to $14,000, which is prohibitive for startups.
Mendix developer at a tech vendor with 10,001+ employees
My experience with pricing, setup cost, and licensing is reasonable;
CTO at Blue Green Solutions
From the pricing shown on the Mendix webpage, we have a basic package where you pay 60 Euros a month for five users and 10 Euros per additional user.
Senior Mendix Consultant at a photography company with 11-50 employees
Subsequent users can be added at an additional cost per user; exact pricing details can be found on the OutSystems site.
Software Developer Advisor at NTT DATA Services
 

Valuable Features

Mendix excels in rapid app development with low-code tools, strong integration, security, and collaborative features for agile businesses.
OutSystems streamlines development with low-code tools, offering rapid deployment, easy integration, and enhanced productivity through reusable components.
Temenos Quantum is valued for its user-friendliness, customizability, integration, security, and comprehensive mobile and web development features.
Mendix's integration capabilities are impressive, allowing for rapid and on-the-fly integration of almost anything imaginable.
Mendix developer at a tech vendor with 10,001+ employees
The best features that Mendix offers are proper guardrails that prevent starting from scratch, ensuring a certain level of security, user experience, and standardization for implementing workflows, API integrations, and how you set up your domain model.
CTO at Blue Green Solutions
For security, I value the built-in authentication, role-based access control, and data protection features, which make enterprise apps safer without needing heavy custom setup.
Software Development Intern at a educational organization with 1,001-5,000 employees
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.
RPA Engineer at a computer software company with 10,001+ employees
We use integration extensively in OutSystems, which allows us to connect our own internal systems to our newly created system applications.
Project Manager at Centre for Content Creation
OutSystems has a very good learning curve for developers.
Software Developer Advisor at NTT DATA Services
 

Mindshare comparison

As of January 2026, in the Mobile Development Platforms category, the mindshare of Mendix is 10.4%, down from 22.3% compared to the previous year. The mindshare of OutSystems is 12.0%, down from 21.0% compared to the previous year. The mindshare of Temenos Quantum is 7.4%, up from 3.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Mobile Development Platforms Market Share Distribution
ProductMarket Share (%)
OutSystems12.0%
Mendix10.4%
Temenos Quantum7.4%
Other70.2%
Mobile Development Platforms
 

Featured Reviews

Mitchel Mol BGS - PeerSpot reviewer
CTO at Blue Green Solutions
Has improved development quality and speed but has introduced persistent IDE slowdowns
In recent years, the IDE has been more buggy and slower, and although there have been more features added, I would like to see more stability, as some areas that used to work for a fairly long time are now slower in my development, which feels like a step back. I choose a seven mainly due to the issues we've faced with slowdowns and bugs during development, while runtime has been very stable, and the overall output on Mendix platform is still good; there is definitely some room for improvement, and I would probably have given it an eight or even a nine if those issues weren't hurting my developer output for the past few years. Overall, Mendix platform is stable, but the IDE could be better.
MA
Software Developer Advisor at NTT DATA Services
OutSystems facilitates rapid application development and effective project management
What I find valuable about OutSystems is that it has a very good learning curve for developers. Within two weeks, we can gain knowledge in OutSystems, and it is very easy to learn. With my background being .NET, OutSystems is straightforward to learn, which is beneficial. Developing applications in OutSystems is good, and the flexibility allowed by OutSystems for application development is excellent compared to my experiences with other low-code technologies, where I've faced some challenges. The clean separation of concerns in the architecture provided by OutSystems is a key benefit compared to other platforms. OutSystems integrates with our existing tech infrastructure and provides flexible integration. If we want to integrate with third-party services, OutSystems has SOAP and RESTful services that allow us to consume external services, integrate with external databases such as SQL or Oracle, and includes integration studio for writing custom .NET code. After developing a .NET component, we can reference it in service studio, creating a reference file that makes integration easy. OutSystems officially supports various integrations and also includes an API discovery tool for consuming and exposing services, providing a lot of information about incoming URLs, similar to how we use Postman.
Zain Omer - PeerSpot reviewer
Software Engineer (Kony-Temenos | Android) at Xpert Digital
Though a secure tool for building applications, there is a need to improve its stability
There is a lot of room for improvement in Temenos Quantum. Temenos Quantum is not quite stable yet. Improvements can be made to make Temenos Quantum stable. Improvements are needed in the solution, considering how my company needs to raise a lot of tickets with the technical support team of Temenos for some basic issues every time. There are some features in Temenos Quantum that I want to be stabilized by Temenos, just like in Android Studio and Xcode. Building an application using Temenos Quantum is not difficult, but my company needs to seek some support for the solution all the time.
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
Financial Services Firm
12%
Computer Software Company
11%
Retailer
6%
Computer Software Company
13%
Financial Services Firm
12%
Manufacturing Company
8%
Government
7%
Financial Services Firm
28%
Computer Software Company
9%
University
6%
Performing Arts
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business28
Midsize Enterprise7
Large Enterprise25
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise7
Large Enterprise30
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise2
Large Enterprise10
 

Questions from the Community

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 do not have much experience with the pricing, setup cost, and licensing because the sales or business team usually ...
What needs improvement with Mendix?
Mendix can be improved in that, while it is good at pricing, it lacks a small business budget project for startups wa...
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 ...
What do you like most about Temenos Quantum?
Comparing other solutions with Temenos Quantum, the later is less mature and presents several issues. Implementing Te...
What needs improvement with Temenos Quantum?
The UI lacks flexibility, especially regarding customizations. There are numerous issues at the fabric end, and worki...
 

Also Known As

No data available
No data available
KonyOne, Kony, Kony Quantum
 

Overview

 

Sample Customers

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
Partners FCU, Banco Bolivariano, PSECU, CFG Bank, Commerce Bank
Find out what your peers are saying about OutSystems, Mendix, Salesforce and others in Mobile Development Platforms. Updated: December 2025.
879,986 professionals have used our research since 2012.