.NET MAUI vs Flutter

The maui vs flutter question almost always comes from one of two places: a company that runs on Microsoft (C# APIs, Azure, Entra ID, SQL Server) and wants a mobile app its own developers can read, or a team still maintaining a Xamarin app that has to move somewhere. Both groups usually have C# skills, and the question is whether those skills should decide the framework.

This guide compares the two on what matters to those teams: support lifecycle, platform targets, tooling, hiring and migration effort. If MAUI is the likely answer, our .NET MAUI app development company page explains how we build and maintain MAUI apps. If you are still on Xamarin, our Xamarin migration services page covers the move itself.

.NET MAUI: C#, XAML and native controls

.NET Multi-platform App UI is Microsoft’s successor to Xamarin.Forms. You write C# with XAML or C# markup, usually in an MVVM structure, and MAUI maps each control to the platform’s own native control through handlers. A MAUI button on iOS is a UIKit button. It is MIT licensed, and the current stable package on NuGet is 10.0.120 as of October 2026, with an 11.0 release candidate in preview.

Per Microsoft’s supported platforms page, MAUI targets Android, iOS, macOS through Mac Catalyst, and Windows 10 version 1809 or later and Windows 11 through WinUI 3. Tizen support is provided by Samsung. Linux is not listed.

Flutter: Dart and its own renderer

Flutter apps are written in Dart and drawn by Flutter’s own engine, Impeller, rather than by platform controls. The UI looks the same on every device unless you adapt it. Flutter is open source under a 3-clause BSD licence and targets iOS, Android, web, Windows, macOS and Linux. Flutter 3.47 (August 2026) made Impeller the default renderer on macOS, Windows and Linux as well as mobile.

The architectural difference is the same one that separates React Native from Flutter: MAUI wraps native controls, Flutter paints its own. MAUI apps inherit platform behaviour and occasionally its inconsistencies. Flutter apps are consistent everywhere and recreate platform behaviour.

MAUI ships with each .NET release and follows Microsoft’s Modern Lifecycle Policy. According to the .NET MAUI support policy, a major version is supported for at least six months after its successor ships, and you must be on the latest servicing update to stay supported. That gives each MAUI version a much shorter window than the .NET LTS runtime underneath it.

Flutter does not tie you to a published support calendar in the same way. In practice a Flutter app moves to a recent stable release whenever packages, Xcode or Android target API requirements force it. Both frameworks therefore need a planned upgrade every year. The difference is that MAUI’s dates are fixed in advance, which makes them easier to budget and harder to ignore.

For a C# team, MAUI tooling feels familiar: Visual Studio on Windows, or VS Code with the .NET MAUI extension, NuGet for packages and the same test frameworks the backend uses. Shared class libraries can carry API models, validation and authentication code between the app and a .NET backend (see .NET app development), which is MAUI’s strongest practical argument.

Flutter tooling is self-contained and consistent: the Flutter CLI, hot reload, DevTools and an analyser that runs in VS Code or Android Studio. Widget Previews became stable in Flutter 3.47, so developers can check UI components without running the whole app. Flutter’s test tooling covers unit, widget and integration tests from one toolchain.

Some things are the same for both. iOS builds need a Mac with Xcode, and since April 2026 App Store uploads must be built with Xcode 26 or later. Both work with Codemagic, GitHub Actions and Azure DevOps, so CI is rarely a deciding factor; our mobile CI/CD page covers the setup. The bigger tooling risk on MAUI is third-party control suites and NuGet packages, which must support each new MAUI version before you can upgrade.

MAUI’s hiring story is mostly about who you already employ. A backend team that writes C# can read and review MAUI code on day one, and with MVVM and shared libraries they can build parts of it. That lowers ownership risk for internal apps, because the people who maintain the API can maintain the app.

Hiring experienced MAUI mobile developers from the open market is harder. Many C# developers have never shipped a mobile app, and mobile experience in MAUI specifically is less common than in Flutter. Flutter’s pool is mobile-focused, and developers from Kotlin, Swift, C# or TypeScript backgrounds learn Dart quickly (our Dart app development page covers the language). If you plan to grow a dedicated mobile team, Flutter is usually easier to staff. If the app will be maintained by your existing .NET team, MAUI usually wins.

For Xamarin.Forms apps, MAUI is the path of least change. Microsoft’s migration guide says projects must become SDK-style but do not need a rewrite, and multi-project solutions do not have to become a single project. The manual work sits in custom renderers (which become handlers), plugins without MAUI versions and platform-specific services. Xamarin.watchOS and iOS OpenGL cannot be upgraded, so a watch extension is new work whatever you choose.

Moving to Flutter is a rewrite. It makes sense when the Xamarin codebase is fragile, a redesign is planned anyway, or the team maintaining the app is no longer a C# team. It rarely makes sense just because Flutter is popular. Our Xamarin end of support guide compares the migration routes in more detail.

Whichever way you go, target .NET 10 rather than .NET 8 or 9 for any interim step, because both older versions leave support on 10 November 2026.

• Internal field or operations app for a company on Azure and Entra ID, with a .NET team: MAUI. Shared C# models and one skill set across app and API. Our internal employee app development company page covers this type of project.
• Line-of-business app that also needs a Windows desktop client: MAUI, because Windows is a first-class target through WinUI 3.
• Existing Xamarin.Forms app in reasonable shape: MAUI, as a migration rather than a rebuild.
• Consumer app where brand and motion design are the product: Flutter.
• Startup with no C# investment hiring its first mobile developers: Flutter.
• App that must also run on Linux desktop or the web: Flutter, since Linux is not a MAUI target.
• App built around watch, widgets, AR or new OS APIs: neither may be ideal. Read our Flutter vs native comparison first.

If Flutter wins, our Flutter app development company page explains how we build it. For hosting and identity on Microsoft’s cloud, see our Microsoft Azure app development page.