Pushbullet - Pushbullet - Your devices working better together
Gradelink - Gradelink is a one-stop-shop system for K-12 schools. You can see grades, attendance, tuition, admissions and communication in one place.
Pushover - Real-time notifications on your Android, iPhone, iPad, and Desktop
Infinite Campus - Access your (or your child's) schedule, grades, assignments and attendance data using the...
Gotify - a simple self-hosted server for sending and receiving messages
Administrator's Plus - Cloud based student information management software