Appcelerator Titanium - Appcelerator Open Source
Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
React Native - A framework for building native apps with React
Node.js - Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications
Onsen UI - HTML5 Hybrid Mobile App UI Framework - work with Angular, React, Vue, Meteor & pure JavaScript. Material & Flat design.
Django - The Web framework for perfectionists with deadlines