Top 3 Ionic Alternative

Flutter is an open-source UI software development kit created by Google. It is used to develop applications for Android, iOS, Windows, Mac, Linux, Google Fuchsia and the web. Flutter apps are written in the Dart language. Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase. Flutter code is compiled to native ARM machine code using Dart's native compilers. Thus Flutter gives you full native performance on both iOS and Android.

An open-source platform for building Android and iOS apps with .NET and C#. Build native Android, iOS, tvOS, watchOS, macOS, and Windows apps with .NET with native API access. Xamarin gives .NET developers complete access to iOS, watchOS, and tvOS SDKs.

Create native apps for Android and iOS using React. React Native is an open-source mobile application framework created by Facebook. React Native combines the best parts of native development with React, a best-in-class JavaScript library for building user interfaces. React components wrap existing native code and interact with native APIs via React’s declarative UI paradigm and JavaScript. This enables native app development for whole new teams of developers and can let existing native teams work much faster.