Pushover - Real-time notifications on your Android, iPhone, iPad, and Desktop
GoPad for Schools - School Management
Pushbullet - Pushbullet - Your devices working better together
Tuio - Tuio is a billing and payment application that allow daycare centers and pre-schools to centralize and manage all parent billing and payment in one place.
Gotify - a simple self-hosted server for sending and receiving messages
Sawyer - Discover a wonder-filled world of kids classes, camps, events, and activities, right in your neighborhood