Cordova

React Native

GO Mobile

app con GUI nativa, permette di scrivere la logica crossplatform

Delphi

Calatrava

JS V8 engine embedded in native applications. workflow: you build the native UI, event listeners pass data to the javascript engine.

Xamarin

J2ObjC

genera Objective C partendo da sorgenti java, da collegare a una UI nativa iOS.

The tool does not convert UI pieces from Android to iOS, because that would be an awful user experience. Google wants developers to write the logic once in Java, transpile it to other platforms, and then make the UI natively using the SDK for each platform. That way the apps look and feel native to the platform they're on, and the UI should run a lot more smoothly. This is the same approach—cross-platform core, platform-specific UI