Parse - Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
AWS Amplify - JavaScript library for app development using cloud services
Zuznow - Automatic mobile adaptation platform for enterprise applications
AWS Mobile Services - Storage, Analytics, Push Notif. & SMS Delivery SDKs
MongoDB Stitch - The serverless platform from MongoDB