Cross platform support - Onsen is compatible with Android 4.4.4+, iOS 8+, Chrome, Safari
Offers a lot of framework choices - Includes frameworks like Angular 1.x, Angular 2+, ReactJS, Vue.js, Meteor
Open source and Easy to Learn - Offers ready-made components required to develop apps with native look and feel
Particularly Optimised for Mobile - No lag while running the apps and performs just like the native apps.
Monaca Toolkit - Helps creating Hybrid apps using Onsen UI with less effort. Monaca has its own CLI and cloud IDE that helps in creating apps.
