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!
Parse - Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.
GoodBarber - GoodBarber is a mobile app creation platform.
AWS Amplify - JavaScript library for app development using cloud services
Bizness Apps - Create your own app or become a reseller and build apps for others
AWS Mobile Services - Storage, Analytics, Push Notif. & SMS Delivery SDKs