Aren't Xamarin and Flutter dead compare to B4X?
Its answer to a related question of mine::
(continued; I'll have it translated...)
Cross-platform languages/frameworks – current status (2024-2025)
Flutter (Dart language) and React Native (JavaScript/TypeScript) have emerged as the leading cross-platform frameworks for mobile development in recent years. The latest statistics confirm that Flutter is leading in terms of adoption and growth. According to the JetBrains 2023 survey, “Flutter has been the most used multi-platform app framework, since 2021”. Market data confirms this as well: AppTopia estimates that Flutter will be used in nearly a third (≈30%) of new free iOS apps in 2024, up from 10% in 2021. Similarly, analysis by Appfigures indicates that Flutter remains the most popular cross-platform framework, with React Native coming in close behind.
The usage percentages detected by developers confirm this: in the StackOverflow Survey 2024, 9.4% of all developers declare to use Flutter, against 8.4% who use React Native. Among professional developers the share is similar (Flutter 9.4% vs React Native 9.0%). Other frameworks have much lower shares: .NET MAUI (~3.1%), Xamarin (~2.9%), Ionic (~2.5%), Cordova (~2.2%).
Figure – Comparison of some popular cross-platform frameworks. Usage percentages (column “SO 2024”) are taken from the StackOverflow 2024 survey. Flutter is the most popular, followed by React Native. (.NET MAUI and Xamarin together cover less than 6%.)
Conclusions
The data clearly indicates that Flutter (Dart) leads the cross-platform market in 2024-2025, detaching React Native and other competitors. In addition to the percentages of use in developers, industry studies and specialized blogs also confirm this: Flutter has grown rapidly in a few years, while React Native remains strong but apparently in a settling phase. Microsoft solutions (.NET MAUI/Xamarin) and hybrid web technologies (Ionic, Cordova) remain used by a much smaller niche. In summary, Flutter is currently the most popular/“downloaded” cross-platform framework, followed by React Native, with the others (MAUI, Xamarin, etc.) far behind