GoodBarber - GoodBarber is a mobile app creation platform.
Appcelerator Titanium - Appcelerator Open Source
Dropsource - Mobile development platform for building native iOS & Android apps
React Native - A framework for building native apps with React
Bizness Apps - Create your own app or become a reseller and build apps for others
Onsen UI - HTML5 Hybrid Mobile App UI Framework - work with Angular, React, Vue, Meteor & pure JavaScript. Material & Flat design.