Device.js
Device.js makes it easy to write conditional CSS and/or JavaScript based on device operating system (iOS, Android, Blackberry, Windows, Firefox OS), orientation (Portrait vs. Landscape), and type (Tablet vs. Mobile).
J Query.mmenu
The best jQuery plugin for app look-alike on- and off-canvas menus with sliding submenus for your website and webapp.
Bootstrap Touchspin
A mobile and touch friendly input spinner component for Bootstrap 3.
React Native
A framework for building native apps with React.
Tabris Js
tabris.js - native apps in JavaScript
Native Script
NativeScript is an open source framework for building truly native mobile apps with JavaScript. Use web skills, like Angular and Vue.js, FlexBox and CSS, and get native UI and performance on iOS and Android.