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OutSystems vs Xamarin Platform comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 4, 2025

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

OutSystems
Ranking in Mobile Development Platforms
1st
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
55
Ranking in other categories
Rapid Application Development Software (4th), Low-Code Development Platforms (2nd), Business Orchestration and Automation Technologies (6th)
Xamarin Platform
Ranking in Mobile Development Platforms
5th
Average Rating
8.2
Reviews Sentiment
7.4
Number of Reviews
40
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of February 2026, in the Mobile Development Platforms category, the mindshare of OutSystems is 10.7%, down from 21.1% compared to the previous year. The mindshare of Xamarin Platform is 6.3%, down from 7.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Mobile Development Platforms Market Share Distribution
ProductMarket Share (%)
OutSystems10.7%
Xamarin Platform6.3%
Other83.0%
Mobile Development Platforms
 

Featured Reviews

Aditya Bhatt - PeerSpot reviewer
Senior Technical Lead at a pharma/biotech company with 1,001-5,000 employees
Rapid delivery has transformed complex enterprise apps and supports faster cross-domain projects
Every platform or low-code platform tool is quite good in its own area, but there is always space to groom or enhance or improve. The same is with OutSystems as well. A couple of things from the integration point of view can be enhanced. If your application or the enterprise organization is tackling a huge data application where you have bulk amounts of data, it becomes a challenge for all the technologies and the same with OutSystems. You have to design your architecture in a very magnificent and decent way so that how you process your data so that load can be easily balanced. Data handling and huge data handling is a kind of challenge you may need to face. Then we have some vendor lock-in. If you are trying to migrate your application from OutSystems, then you probably get into this vendor lock-in system. Some organization may face challenges if some organization is on a small scale size. The small scale businesses may find OutSystems costly because of its high cost and pricing due to the licensing cost. Apart from that, OutSystems really plays well, and it needs a learning curve. If a traditional application or programming is there which your developers are skilled into and they are directly deployed into OutSystems, it may take some significant amount of time for them to get comfortable with OutSystems. There is a learning curve. OutSystems community is already in place, but it can more be enhanced regarding some aspects. They did organize lots of bootcamps and other user groups as well, but those can also be improved from the documentation point of view and having some integration guidebook as well. A couple of things which can be improved into OutSystems include the licensing cost, the vendor lock-in side, the learning curve, couple of integration aspects and customizations.
Prince Tiwari - PeerSpot reviewer
Senior Software Engineer at AAPC
Facilitates UI development with XAML, enabling shared UI code across platforms and reducing platform-specific work
I like its simplicity. As someone who didn't start my career as a dedicated developer, I was used to building websites or Windows applications. Transitioning to mobile app development meant learning new languages like Swift or Java. With C# and Xamarin, though, I could leverage my existing skillset. Xamarin, and specifically Xamarin.Forms, let me write my code once and deploy it natively to both Android and iOS. Xamarin.Forms are very useful. Essentially, it's a framework that allows me to create the UI mostly in XAML. This XAML code is then translated into the native UI elements for each respective platform. The advantage is that roughly 90% of my UI code can be shared. This significantly reduces the amount of platform-specific UI work compared to having to write separate UIs for each platform. For the most part, Xamarin's integration with Visual Studio improved the workflow, whether I'm on Windows or Mac. Since I'm familiar with Visual Studio, it provides a comfortable development environment. Additionally, features like Hot Reload and the integration of tools like Copilot help streamline the development process. Overall, it offers a positive development experience.

Quotes from Members

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

Pros

"The integration capabilities have benefited my customers by providing many connectors out of the box, allowing for the integration of external applications or business applications."
"The architecture of OutSystems is quite simple, and the features are similar to Mendix's. OutSystems has connectors for different enterprise apps and solid reporting capabilities. You can also integrate with any content management platform like SharePoint or Adobe Enterprise Manager, or something like that. You can also create and integrate workflows."
"The scalability of OutSystems is very good, it scales automatically very useful for us."
"Scalability proved to be an exceptionally beneficial feature."
"We can do the validation before calling the API."
"Speed of delivery: We were able to reduce development time by 30%."
"Their out-of-the-box UI is quite good."
"The drag-and-drop feature is very valuable."
"The solution is easy to understand and has banking integrated. The shorter development time, the bugging and as well as availability of a lot of documentation on the web. Also the native integration is easy."
"Test Cloud, Calabash, SpecFlow, and Xamarin.UITest are the features which can’t be ignored because just writing code doesn’t mean your app will run flawlessly. You need to test your app on each possible device and configuration, which you can do easily."
"Being able to use the .NET framework and platform have me creating applications better than anyone who develops on Windows."
"Plugins like MvvmCross make a developer’s life easy."
"The most important impact is the reduction in product lifecycle costs."
"The solution's most valuable asset is its shared code base in C# that is better for large apps."
"We very much like the XAML design techniques, multiple layout and pages, MVVMCross support, and portability across different platforms."
"Xamarin Platform enables you to use a single code language. This is beneficial for Android, iOS, and Windows platforms, so they can be developed over application or built over application."
 

Cons

"In the future with OutSystems, improvements could be made on the costing side rather than the feature side."
"The product could be improved if there was a shortcut, or predefined, predictable templates provided."
"The largest obstacle currently associated with OutSystems is its high cost and limited availability of skilled personnel. Despite being a rapid application development platform, having a highly skilled individual familiar with the platform can be much more beneficial than an inexperienced individual. Because there is a shortage of people with the necessary OutSystems skills, utilizing the platform can become expensive. This makes little sense, considering that a rapid application development platform should be accessible to the average person. However, having a highly skilled individual can greatly increase productivity, making the cost worthwhile."
"The new version could be improved."
"The integration points need to be increased. People have also started to adopt this solution for their regular needs. That means it's not only the big enterprises that are adopting this solution. There are also small and medium enterprises that are adopting it. I've read that where you have large deployments, OutSystems starts to crumble a bit. That is the idea that no customer would know at the beginning and would also not like to hit the wall there. When it is on the client, there are a lot of applications already on low-code, and then suddenly you realize that you want to do some big applications, and you face hurdles. This is the general feedback for all such platforms."
"Since we first started using OutSystems, they switched their language support from Java and .NET to .NET only, which was a bit of a surprise. Their language support could be better in this sense, although on our resource side it is now a bit more flexible."
"OutSystems could improve by being more like GitHub. It would be more helpful for us for division management and version control for our application."
"The PDD framework can't be used for the behavioral-driven development way of working."
"The Xamarin.Forms could improve."
"Xamarin Platform can improve if there was a virtual test environment so we did not have to have a Mac system for the iOS testing. At this time You must have a Mac to deploy or generate IBA profiles."
"The android application compilation time needs to be reduced."
"The worst build issue concerns are the caching process MSBuild uses to reduce the build time."
"The application platform could be improved."
"The performance needs improvement, especially the dev tools, and also the ultimate output of the mobile applications."
"The solution struggles a little bit with binding libraries."
"We need to think about partnering with IBM because there is a need for a big data partner; someone who has machine learning and can help us connect the app to big data."
 

Pricing and Cost Advice

"For one developer to use, the cost is around $5,000."
"There is a need to make yearly payments towards the licensing costs attached to OutSystems. It is an expensive product."
"OutSystems was open to a deal that worked for both sides."
"I believe they have two pricing options. One is approximately $4000 USD a year and the other is approximately $10,000 USD a year."
"The subscription is billed on a yearly basis."
"I believe they are very strict with their pricing platforms, or the pricing policies, and it changes."
"The tool’s licensing is based on the user’s usage."
"OutSystems is expensive, and they changed the pricing model in the last couple of years. It's changing too much and it's becoming unstable. They are constantly shifting their prices based on users, courses, and other factors."
"Xamarin Platform is open-source, but there are fees for deployment, the API Store and Play Store, and using third-party libraries."
"There is no requirement for a license. It is available for free as an open-source product."
"Xamarin Platform is a free open-source solution."
"Xamarin Platform is open-source, so it is free to use."
"This is an open-source solution, but there is a subscription charge to use the App Center of around $100."
"The price of the Xamarin Platform is not expensive. However, the price of the solution depends on the application that is made. For example, if you have small applications, it's different from large or enterprise applications."
"Xamarin is free, or comes with Visual Studio. Therefore, it is very profitable."
"For personal use, the Community Edition is free."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
12%
Manufacturing Company
8%
Government
7%
Educational Organization
18%
Marketing Services Firm
15%
Comms Service Provider
12%
Performing Arts
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise7
Large Enterprise31
By reviewers
Company SizeCount
Small Business18
Midsize Enterprise5
Large Enterprise14
 

Questions from the Community

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 that platform for good. The business model is to lock in and then keep pumping th...
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 applications that work in no time? And OutsyStems does exactly that. The low-code plat...
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 how we like the platform, but so far, we have been satisfied with it and will li...
What do you like most about Xamarin Platform?
Xamarin.Forms are very useful. Essentially, it's a framework that allows me to create the UI mostly in XAML. This XAML code is then translated into the native UI elements for each respective platform.
What is your experience regarding pricing and costs for Xamarin Platform?
Xamarin Platform is free, and we use an Azure subscription at a relatively low cost for our builds. It offers a good value for money, although it requires time to make it work effectively.
What needs improvement with Xamarin Platform?
The primary area for improvement is the support for third-party libraries, especially for major providers like Microsoft and Google. The lack of robust documentation and support for third-party bin...
 

Overview

 

Sample Customers

Randstad, Warner Brothers, HP, Intel, ING, Banco Popular, Thrivent Financial, Bacardi, Kent State University, Bacardi, FICO, ING, Vodafone, AbbVie, Estafeta, Siemens, Vopak
Cinemark, MixRadio, Sqor Sports, Storyo, JetBlue, The World Bank, Cr_dito Agrcola, Applied Research Associates
Find out what your peers are saying about OutSystems vs. Xamarin Platform and other solutions. Updated: February 2026.
882,103 professionals have used our research since 2012.