NativeScript

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React Native

Ionic is an open-source mobile app development framework that makes it easy to build high quality native and progressive web applications. The Ionic Framework takes advantage of power and flexibility of Angular to enable developers to build production-ready applications in a way that feels familiar. The Ionic Framework is released free and open-source under the MIT License, but the company behind the framework also provides the Ionic Enterprice Platform which enables large organization to launch enterprice-grade applications faster to the cloud.

Apache Cordova is a mobile application development framework that enables developers to build hybrid web applications for mobile devices using CSS3, HTML5, and JavaScript. Instead of relying on platform-specific APIs, Apache Cordova allows you to build your application once, and ship anywhere.

With Vue Native you can build iOS and Android application utilizing the Vue JavaScript framework. Vue Native provides a cross-platform UI library that makes it easy to create quality app that can be bundled and released for mobile devices. The framework can act as an ideal starterkit providing all the necessary UI elements for your next Vue-powered mobile project.

Qt includes everything you need to build cross-platform applications that run on various software and hardware platforms such as Linux, Windows, macOS, Android or embedded systems with little to no change in the underlying codebase. Qt is released open-source under the GNU Free Documentation License, and provides a commerical offering for enterprises.

React is a free an open-source Javascript framework for frontend development. With React you can build powerful, component-based application that supports compilation of JSX, ES6 and auto-prefixed CSS files. The popular framework is developed by Facebook and used by countless of applications across the web and mobile devices to build  structured user interfaces or UI components.

Flutter is an open-source UI software development kit created by Google. Flutter allows developers to write Android and iOS application in Dart. Flutter can be installed on any desktop computer and server that runs Linux, macOS or Windows. The SDK provide developers with a great developer experience with hot reload, that allows for quick iterations and a quick development workflow when building UI's, adding features and fixing bugs.