Quasar Framework - SPA front-end on steroids.
Fuse - Fuse is a UX tool suite for mobile app designers and developers.
Ionic Framework - A front-end SDK to develop applications with HTML5 , CSS3 and JavaScript.
Siberian CMS - Siberian is an Open-Source and Free App Maker. Unlimited Push Notifications. Unlimited features. Fully Customizable. Download it and build your own app now!
Sencha Touch - The leading mobile web app framework based on HTML5 for amazing mobile apps.
GoodBarber - GoodBarber is a mobile app creation platform.