Streak Calendar is described as 'Open source productivity tool that combines habit tracking, task timing, and progress visualization. It supports multiple calendars and habits, allowing you to customize your approach to personal growth' and is an website in the office & productivity category. There are more than 25 alternatives to Streak Calendar, not only websites but also apps for a variety of platforms, including Android, iPhone, iPad and Android Tablet apps. The best Streak Calendar alternative is Loop Habit Tracker, which is both free and Open Source. Other great sites and apps similar to Streak Calendar are Habitica, Everyday, Disciplined - Habit Tracker and TimeJot.