Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Kahuna - Best way to understand and engage your mobile audience
restdb.io - restdb.io lets you create databases and REST APIs quickly. Development databases are free. Powerful web-based and mobile-friendly data management.
mobilecommons - MobileCommons makes it easy for companies and non-profits to connect with people on their mobile devices.
RemoteStorage - An open protocol for per-user storage OWN YOUR DATA
Inspired Mobile - Inspired is a unique mobile marketing platform offering an evolving suite of solutions to run all marketing campaigns.