built.io - Idea to app in record time
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Zuznow - Automatic mobile adaptation platform for enterprise applications
restdb.io - restdb.io lets you create databases and REST APIs quickly. Development databases are free. Powerful web-based and mobile-friendly data management.
Notix.co - NOTIX is an audience re-engagement service based on web and in-app push notifications that work for both desktop and mobile devices.
RemoteStorage - An open protocol for per-user storage OWN YOUR DATA