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Belitsoft > Mobile App Development Company > Xamarin App Development Services

Xamarin App Maintenance, Support, and Migration Services

Our cross-platform mobile application development company, which previously built apps for Android, iOS, macOS, and Universal Windows Platform (UWP) using Xamarin, can now support, maintain, and migrate those kinds of apps to .NET MAUI, even if other developers built them.

Microsoft is no longer supporting Xamarin's compatibility with new Android and iOS releases. The last extension for API 34 / Xcode 15 was in 2023. Microsoft support for Xamarin officially ended on May 1, 2024. Today, Xamarin applications still build and work, but those applications can no longer be updated or uploaded to the app stores. Apple has begun rejecting uploads built with Xcode 15 since April 2025. Google has restricted updates of existing apps built with API 34 since August 2025. To update and resubmit your app, you need to rebuild with current development tools and meet the latest standards. The way forward is Xamarin to .NET MAUI migration. The Xamarin.Android, Xamarin.iOS, and Xamarin.Mac tools have been consolidated into .NET as Android, iOS, and Mac for .NET. The cross-platform Xamarin.Forms framework has migrated to .NET MAUI, which Microsoft now officially supports.
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Full Stack of Xamarin App Development, Maintenance, Support, and Migration Services

Cross-Platform Application Development

Hire dedicated mobile app developers to get a reliable, high-performing cross-platform business app with a close-to-native look and feel at a 30% lower cost than native mobile app development services and with a shorter time to market.

iOS App Development

You'll get a robust iOS app with native UI and functionality available thanks to native API access. Easy to transfer to Android and desktop OSes.

Android App Development

You'll get a smoothly working Android app that performs and looks like a native Android app but can be easily transferred to iOS or Windows operating systems.

Desktop App Development

You'll get a powerful macOS and Windows application that feels intuitive for users and brings powerful functionality.

UI Development and Design

You'll get an app with native controls for each platform from one XAML/C# UI layer.

Xamarin to .NET MAUI Migration & Upgrade Services

You'll get assistance in upgrading your Xamarin app to the latest .NET MAUI version.

Cross-platform App Testing Services

You'll get a smoothly performing app that has passed a full array of code assessment, functionality, performance, and load testing, against the behaviour of the original Xamarin version.

Consulting Services

You'll get answers from highly skilled .NET MAUI/Xamarin experts to understand if .NET MAUI is your best fit and where to start the migration.

App Support & Maintenance

You'll get qualified technical support around keeping your existing Xamarin apps in production, as well as fixes, OS-update compatibility, and cloud integration.

Benefits of Outsourcing Xamarin Support and .NET MAUI Migration to Belitsoft

Here are the reasons why clients from the US, UK, Israel, the European Union, etc choose Belitsoft for Xamarin maintenance and migration to .NET MAUI.

We guarantee that your project will involve developers with in-depth knowledge of cross-platform app development and corresponding technologies (C#, Java, Objective-C, etc). As a result, your app will fully meet your requirements.
By working with Belitsoft outsourcing software development company your business saves a lot on hiring, onboarding, and training new hires. Together with human resources, you save on equipment and technology, which we fully provide.
We have a team of skilled developers who are ready to start your project as soon as you need it. You save time because instead of searching and hiring in-house employees as well as onboarding them, you start quick and effective app development.
With Xamarin app development, maintenance and .NET MAUI migration support by Belitsoft, you pay only for the services you need and when you need them. From the start, you understand how much each feature costs and how long its development takes. So you can easily ramp up or down the project scope according to your budget.
When you partner with us, you are suggested several cooperation models (working with dedicated developers, time and material, or fixed price). Based on your project specifics, we'll recommend you the best fit with the corresponding detailed pricing.
By setting up clear and effective communication, we guarantee that you will get regular and detailed updates and reports about your product and the process. You'll always have a person in contact in case you want to make any changes in the project.
We take security seriously as we realize how security breaches can be expensive in time, money, and credibility. The standard set of documents we sign includes Master Services Agreement (MSA), Non-Disclosure Agreement (NDA), Statement of Work (SOW).
You'll benefit from our agile methodology. Namely, you get an opportunity to see an intermediate result and make changes if needed, easy planning, frequent and clear reporting, close communication with the development team, etc.

Xamarin and .NET MAUI Tech Stack

Development Language C#
Frameworks and Components .NET MAUI, Xamarin.iOS, Xamarin.Android (legacy)
Xamarin.Forms (legacy), MVVM, Rx.NET
Google Play Services, Firebase SDKs
Facebook SDKs, .NET MAUI Essentials, Xamarin.Essentials (legacy)
Development Environments Visual Studio, Rider, Xcode, Android Studio
Automation Tools Azure DevOps, GitHub Actions
Third-Party SDKs Microsoft.AspNetCore.SignalR.Client, SecureStorage
ZXing.Net.Maui, Plugin.Maui.Audio, xUnit

Our domain expertise

Whatever domain your app belongs to, Belitsoft maintains your Xamarin application and migrates it to .NET MAUI cost-effectively.

Healthcare & Fitness
Healthcare & Fitness
E-Learning & Education
E-Learning & Education
E-Commerce & Shopping
E-Commerce & Shopping
Sports & Recreation
Sports & Recreation
Media & Entertainment
Media & Entertainment
Banking & Finance
Banking & Finance

Frequently Asked Questions

To calculate the cost of Xamarin support and .NET MAUI migration services, we need to understand the scope of the app, core features, expected scalability, etc. Talk to our experts to get a free quote for your case.
MAUI comes from Microsoft, the owner of Xamarin, and is built as Xamarin's official successor. It uses the same programming language, C#, and can reuse most of the business logic code from the existing Xamaring application. So it's more of an upgrade of the same app than a rebuild when you migrate from Xamarin to MAUI. Switching to a completely different mobile development framework, like React Native or Flutter, means starting the app over from the ground up, hiring mobile developers with a different skill set, and throwing away years of mobile development work you've already paid for.
We suggest 3 cooperation models to our clients:
  • Dedicated Development Team. We gather a team for your project. It’ll include specialists majorly of senior and middle levels. They will work fully and exclusively on your project and report to you directly.
  • Time and Material. You pay only for the amount of work, tasks, resources, and other expenses applied in your Xamarin-related work. We can use an hourly, daily, or monthly rate for your convenience.
  • Fixed Price. The final cost as well as the project scope are agreed in advance and don’t change along the development process. The best fit for small-scale projects with predefined requirements.

Portfolio

Mobile App for a Delivery Marketplace
Mobile App for a Delivery Marketplace
Our client, a European medium-sized logistics provider, came to Belitsoft with a long-term strategy for entering the same-day delivery market with the help of a mobile app.
Android and iOS Mobile App Development for a Drone Company
Android and iOS Mobile App Development for a Drone Company
Our Client, one of the world’s largest drone companies, decided to create a convenient mobile video editing app. Belitsoft has provided the Client with a team of Android and iOS mobile developers to create custom mobile apps for editing videos recorded using the drones produced by our Client.
Custom Mobile App for a Learning Management System
Custom Mobile App for a Learning Management System
We developed a simple-to-use and intuitive mobile app for a Learning Management System. Available for Android and iOS. It’s a good complement to the web version.
Mobile App for a Seafood Restaurant Chain
Mobile App for a Seafood Restaurant Chain
An American restaurant chain has reached out to Belitsoft to take their quality of service to the next level with a bespoke mobile app. And it paid off - more than half of their regulars preferred ordering online and the number of visitors grew by an undisclosed number.

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Contact us

USA +1 (917) 410-57-57
700 N Fairfax St Ste 614, Alexandria, VA, 22314 - 2040, United States

UK +44 (20) 3318-18-53
26/28 Hammersmith Grove, London W6 7HA

Poland +48 222 922 436
Warsaw, Poland, st. Elektoralna 13/103

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