Framework comparisonFlutter vs Xamarin/.NET MAUI: Cross-Platform Showdown 2026
Microsoft ended Xamarin support in May 2024 and migrated to .NET MAUI. This guide compares performance, community, tooling, and migration paths so you can make the right cross-platform choice.
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Head to head
Head-to-head comparison
| Factor | Flutter | Xamarin / .NET MAUI |
|---|---|---|
| Performance | Compiled ARM code via Impeller, consistent 60fps ✓ | Native renderers via .NET runtime, platform-dependent fps ✓ |
| Developer Community | Large, active open-source community ✓ | Smaller MAUI community; Xamarin no longer supported ✓ |
| Hot Reload | Sub-second stateful hot reload across all platforms ✓ | XAML Hot Reload for UI; C# hot reload limited to certain changes ✓ |
| Package Ecosystem | Broad package ecosystem on pub.dev ✓ | Smaller set of MAUI-compatible NuGet packages ✓ |
| Platform Coverage | iOS, Android, web, macOS, Windows, Linux ✓ | iOS, Android, macOS, Windows (via MAUI) ✓ |
| UI Consistency | Own rendering engine, pixel-perfect across platforms ✓ | Native controls, UI varies by platform ✓ |
| .NET Integration | Requires platform channels for .NET interop | Native C# and .NET ecosystem, seamless Azure integration |
| Enterprise Adoption | Google, BMW, Toyota, Alibaba, Nubank ✓ | UPS, Alaska Airlines, Microsoft apps (legacy) ✓ |
Migration
Xamarin end of life & .NET MAUI migration
Microsoft officially ended Xamarin support on May 1, 2024. Xamarin.Forms, Xamarin.iOS, and Xamarin.Android no longer receive security patches, bug fixes, or technical support. Existing Xamarin apps continue to work, but they are running on an unsupported platform with growing security and compatibility risks.
The migration path to .NET MAUI is not seamless. MAUI requires rewriting custom renderers as handlers, updating NuGet packages to .NET 8+ compatible versions, and restructuring the project from the old Xamarin.Forms format to the new single-project structure. Teams report migration timelines of 2-6 months depending on app complexity.
Many teams are using the forced migration as an opportunity to evaluate Flutter instead.
Xamarin isn't the only framework to go: Titanium, PhoneGap and Xamarin are all gone, and this guide compares the cross-platform frameworks that replaced them.
"We've helped several teams migrate from Xamarin to Flutter. The biggest advantage isn't just the technology - it's the community momentum. Flutter's ecosystem is growing faster than any other cross-platform framework, and that translates directly into better libraries, faster bug fixes, and more hiring options."
Trade-offs
Pros & cons
Flutter
Pros
- Large, active developer community
- Broad package ecosystem on pub.dev
- Own rendering engine guarantees identical UI on every platform
- Sub-second stateful hot reload for fastest iteration speed
- Covers iOS, Android, web, macOS, Windows, and Linux from one codebase
- Google's long-term investment with dedicated team of 100+ engineers
Cons
- Dart is less familiar to C#/.NET developers
- No native .NET interop without platform channels
- Larger app binary size (~5MB overhead) compared to native
- Deep platform integrations may require native code bridges
- Relatively newer ecosystem compared to .NET (2018 vs 2002)
Xamarin / .NET MAUI
Pros
- C# and .NET language familiarity for Microsoft-stack teams
- Seamless Azure DevOps and Azure cloud integration
- Shared business logic with .NET backend services
- Native platform controls for platform-authentic look and feel
- Strong enterprise tooling with Visual Studio integration
Cons
- Xamarin officially ended support May 2024, no more patches
- MAUI migration requires significant project restructuring
- Smaller community than Flutter
- Fewer third-party packages than Flutter
- No web or Linux support, limited to iOS/Android/macOS/Windows
- Slower hot reload compared to Flutter's sub-second refresh
How to decide
When to choose each approach
Choose Flutter When
- You are starting a new cross-platform project from scratch
- You need to support web and desktop alongside mobile
- You want the largest possible developer community and hiring pool
- Pixel-perfect, consistent UI across all platforms is a priority
- You are migrating from Xamarin and want to future-proof your stack
- Your team values rapid iteration with sub-second hot reload
Choose .NET MAUI When
- Your team has deep C# and .NET expertise you want to preserve
- Your backend runs on Azure and you want seamless .NET integration
- You need native platform controls and platform-specific look and feel
- You have significant shared .NET business logic across services
- Your enterprise requires Visual Studio and Azure DevOps tooling
- You only need iOS, Android, macOS, and Windows (no web or Linux)
Questions
Frequently asked questions
Is Xamarin still supported in 2026?
No. Microsoft ended Xamarin support on May 1, 2024. Xamarin.Forms, Xamarin.iOS, and Xamarin.Android no longer receive security patches, bug fixes, or technical support. Microsoft's official successor is .NET MAUI, which requires migrating your Xamarin project to the .NET 8+ ecosystem. Existing Xamarin apps still run but carry increasing security and compatibility risk.
Should I migrate from Xamarin to .NET MAUI or Flutter?
If your team is heavily invested in C# and .NET, migrating to .NET MAUI preserves your language expertise and some existing code. Many teams use the forced Xamarin migration as an opportunity to choose Flutter for its broader platform support and faster iteration speed.
How does Flutter's performance compare to .NET MAUI?
Flutter compiles Dart to native ARM code and uses the Impeller rendering engine, delivering consistent 60fps across iOS and Android. .NET MAUI uses native platform renderers, meaning UI performance depends on each platform's control implementation. For animations and transitions, Flutter's own rendering pipeline gives it more consistent frame rates.
How long does a Xamarin to Flutter migration take?
Business logic and API contracts remain the same, so the work focuses on rewriting the UI layer in Dart and replacing Xamarin-specific NuGet packages with pub.dev equivalents. For a medium-complexity app, expect 2-4 months. App369 offers phased migration where critical screens ship first while the rest of the app is rebuilt in parallel.
Start here
Migrate to Flutter with Confidence
App369 has helped teams migrate from Xamarin, .NET MAUI, and other frameworks to Flutter. Get a migration assessment and detailed estimate by email, usually within one business day, or book a consultation ($100 per 15 minutes, paid upfront).