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.
Habitica - Habitica is a free habit building and productivity application.
Democracy.io by EFF - A simpler way to send messages to Congress
HabitBull - HabitBull
Call Your Reps - We make it easy to find & call your members of Congress.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Facebook Town Hall - Easily view the Facebook Pages of Local, State, and Federally elected officials according to your...