Pushbullet - Pushbullet - Your devices working better together

Habitica - Habitica is a free habit building and productivity application.

Pushover - Real-time notifications on your Android, iPhone, iPad, and Desktop

Coach.me - Coach.me is a coach that goes everywhere with you, helping you achieve any goal, change any habit, or build any expertise.

Gotify - a simple self-hosted server for sending and receiving messages

Loop Habit Tracker - Loop Habit Tracker (AKA uhabits) helps to create and maintain good habits in order to achieve their...