Remind Calendar - Remind is a sophisticated calendar and alarm program.

Beaver Habit Tracker - Feature-rich self-hosted habit tracker skipping traditional goal setting but including habit ordering, streaks, calendar view, custom domain support, and robust data management with user-based storage and timezone support.

Best Reminder App - Why not use the browser to remind you of things?

Reminder - A better way to keep track of your reminders 📝

TheFor: Habit Tracker - Powerful and minimalistic app to manage your habits with ease