Xamarin Development for Cross-Platform Apps
Groenewold IT Solutions develops cross-platform apps with Xamarin – one codebase, two platforms, full performance. Professional cross-platform development in Norden, Aurich, Emden and throughout East Frisia as well as the entire DACH region.
Our Xamarin Development Services
Xamarin.Forms Apps
Development of cross-platform apps with Xamarin.Forms – one codebase for iOS, Android and Windows with native UI.
Native Xamarin Apps
Development with Xamarin.iOS and Xamarin.Android for maximum control and platform-specific features.
Enterprise Apps
Business apps with Azure integration, offline synchronization and enterprise security for organizations.
IoT & Wearables
Xamarin apps for IoT devices, smartwatches and wearables with Bluetooth, NFC and sensor integration.
App Migration
Migration of existing native iOS/Android apps to Xamarin for easier maintenance and faster development.
Maintenance & Support
Long-term maintenance, updates and feature enhancements for existing Xamarin apps.
The Xamarin Ecosystem
Frameworks & Tools
- Xamarin.Forms – Cross-Platform UI Framework
- MAUI – Successor to Xamarin.Forms
- Xamarin.Essentials – Cross-Platform APIs
- Visual Studio – Integrated Development Environment
- Azure DevOps – CI/CD and App Center
Libraries & Services
- Prism – MVVM Framework
- SQLite-net – Local Data Storage
- FFImageLoading – Image Caching
- Azure Mobile Apps – Backend Services
- Xamarin.Auth – OAuth & Authentication
Benefits of Xamarin
Native Performance
Xamarin compiles to native code and delivers full native performance – no compromises on speed or UX.
Code Sharing
Up to 90% code sharing between iOS and Android – faster development, lower costs, easier maintenance.
C# & .NET
Development with C# and the .NET ecosystem – a modern, type-safe language with a large developer pool.
Full API Access
100% access to native iOS and Android APIs – all platform features are available, no limitations.
Microsoft Support
Backed by Microsoft with a strong community, excellent tools and continuous evolution to MAUI.
Enterprise-Ready
Perfect for business apps with Azure integration, enterprise security and professional support.
Our Xamarin Development Process
Concept & Planning
We analyze your requirements and plan the optimal architecture for your cross-platform app.
UI/UX Design
We create native UI designs for iOS and Android that follow platform guidelines and are user-friendly.
Development & Testing
Agile development with Xamarin, continuous testing on real devices and code reviews for the highest quality.
Deployment & Maintenance
App Store publishing, CI/CD setup with Azure DevOps and long-term maintenance with updates.
Xamarin to .NET MAUI: Cross-Platform Mobile Transitions
The migration from Xamarin.Forms to .NET MAUI represents more than a namespace change — it's a fundamental shift to a single-project architecture with platform-specific folders replacing separate iOS and Android projects. Existing Xamarin apps benefit from the upgrade assistant tooling, but teams should plan for handler-based rendering that replaces the old renderer model, affecting every custom control in the codebase.
A shared C# codebase across platforms remains the core value proposition. Business logic, data access layers, and API clients are written once, while platform-specific code accesses native APIs through dependency injection and conditional compilation. This approach typically yields 70–90% code sharing in real-world projects, with the remainder handling platform-specific UI patterns like Android Material Design or iOS Human Interface Guidelines.
Native performance is achievable because both Xamarin and MAUI compile to platform-native binaries — AOT compilation on iOS and JIT on Android. Accessing platform APIs for features like biometric authentication, push notifications, or camera integration is straightforward through .NET bindings. For teams with existing C# expertise and .NET backend services, this stack eliminates the need for separate Swift and Kotlin specialists.
Xamarin Development for Cross-Platform Apps Below you will find use cases, services and answers to common questions.