Ionic Framework

Ionic is a complete open-source SDK for hybrid mobile app development

Ionic uses TypeScript for its code.

Ionic-Apps are built on Angular, with Cordova, provides tools and services for developing hybrid mobile apps using Web technologies like CSS, HTML5, Sass...

Ionic is completely free and open source, released under the permissive MIT license, which means you can use Ionic in personal or commercial projects for free.

Ionic CLI

The CLI , or command line interface, is a tool that provides a number of helpful commands to Ionic developers. In addition to installing and updating Ionic, the CLI comes with a built-in development server, build and debugging tools, and much more. If you are using Ionic Pro, the CLI can be used to export code and even interact with your account programmatically.