
Task Coach
Todoist
Remember The Milk
Things
EssentialPIM
Todo.txt
TickTick
Google Tasks
Loop Habit Tracker
Habitica
Habitify
Streaks
HabitKit - Habit Tracker
HabitBull
Everyday
everyday.app
I guess it's really safe cause it's open source, you can make notes on your habits but don't really do that. Its simple. Really fast. Haven't found a way to connect it to notion. In general it's a great app to track you habits. Does its job. Not more, not less.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Habitica - Habitica is a free habit building and productivity application.
Remember The Milk - Remember The Milk is a task and time management application for mobile devices.
Habitify - The easiest way to keep track of your habits
Things - Things is an easy to use task manager.
Streaks - The to-do list that helps you form good habits.