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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
7.0
Number of Reviews
51
Ranking in other categories
Rapid Application Development Software (3rd), Low-Code Development Platforms (2nd)
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 May 2025, in the Mobile Development Platforms category, the mindshare of OutSystems is 20.5%, down from 22.6% compared to the previous year. The mindshare of Xamarin Platform is 6.7%, down from 8.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Mobile Development Platforms
 

Featured Reviews

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.
Prince Tiwari - PeerSpot reviewer
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

"We have no complaints surrounding both the scalability and stability of this solution."
"Integrations with external systems with SOAP and REST are easy to implement off-the-shelf, but a developer can always implement specific libraries for other integrations."
"The technical support is perfect."
"For me, the most valuable feature is the flexibility the tools give us to change any customer requirements on the fly, when we are in a meeting. I also like how easy it is to deploy the code between environments and how easy it is to integrate OutSystems with other systems."
"It is easy to use."
"Speed of delivery: We were able to reduce development time by 30%."
"It is a stable solution."
"The most valuable feature of the solution is that it allows users to easily build applications."
"The best part while using the Xamarin Platform is a cross-platform application. We could execute iOS and Android while writing a single line of code."
"The cross platform ability is a great asset."
"Their leadership is exceptional at both listening to the customer base and delivering innovative, best-in-class products."
"The most valuable features of the Xamarin Platform are that it has cross-platform development, one code base serves a purpose on both, and the grid layout is a lifesaver."
"The combination of forms for cross-platform UI and C-Sharp for the programming language are my two favorite features."
"The most important impact is the reduction in product lifecycle costs."
"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."
"It brings about good code sharing strategies, which bring down cost and maintenance efforts."
 

Cons

"The documentation needs to be more robust."
"The installation is a bit tedious."
"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."
"Currently, in mobile applications, we don't have push notifications."
"We have performance issues while fetching bulk data."
"The new version could be improved."
"The tool's weakness is its focus on the solution only. Other than that, it's pretty easy to use for both technical and non-technical people. However, the tool lags in automation. For instance, we've used Python for scraping and other automated tasks. So, I believe automation is an area where it could improve."
"The initial setup is a little difficult."
"Xamarin Platform lacks in app size."
"The problem that I faced was that the communication, the roles, and the responsibilities, weren't defined between Microsoft and Xamarin."
"There are compatibility issues between versions of various Xamarin components."
"The solution struggles a little bit with binding libraries."
"There is room for increasing the scale a little bit further with the designer in the Visual Studio, more specifically, Xamarin.Android Designer in Visual Studio."
"All Xamarin library issues need to be taken care of as a top priority."
"In Xamarin.Forms, we have the option to preview our UI designs, but the functionality can be limited. So, this is not fully functional. Since I have some knowledge of iOS, where when you write code or design in the storyboard, your design is immediately visible in the preview."
"I would like to see hot reload, similar to what Flutter has out-of-the-box. There is "Live Reload" but it’s still in preview and was only recently announced."
 

Pricing and Cost Advice

"OutSystems is a very expensive solution, and it has to be cheaper."
"As for licensing costs, I'm not directly involved in that aspect."
"It is very high price."
"You should contact OutSystems for more details but my opinion is that it is not for small business budgets."
"OutSystems is a good solution, but it's not cheap."
"I would rate it five to six out of ten."
"It is too expensive for small companies."
"The tool’s licensing is based on the user’s usage."
"This is an open-source solution, but there is a subscription charge to use the App Center of around $100."
"For personal use, the Community Edition is free."
"Xamarin is available under several licensing arrangements. Each developer needs one license at least. All features, especially the Profiler, unlock only with the highest tier."
"Xamarin is free. There is no license unless you go for some high-end enterprise features. Other than that, everything's free."
"It saved a lot of time and resources needed to develop a cross platform mobile app."
"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."
"My company provided all the licenses that we need to support our use of Xamarin Platform."
"There is no license fee because the solution is open-source."
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Top Industries

By visitors reading reviews
Educational Organization
28%
Computer Software Company
13%
Financial Services Firm
8%
Manufacturing Company
7%
Educational Organization
19%
Financial Services Firm
14%
Manufacturing Company
13%
Computer Software Company
11%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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...
 

Comparisons

 

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: April 2025.
850,671 professionals have used our research since 2012.