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.
Foursquare - Foursquare is all about helping you find new ways to explore your city.
Habitica - Habitica is a free habit building and productivity application.
Tripadvisor - The Tripadvisor mobile app is available for the Android and iOS platforms. It can be used to create reviews of hotels, restaurants, and to chat with other travelers on Tripadvisor forums.
HabitBull - HabitBull
Yellow Pages - YP.com local search connects you with over 19 million local businesses.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.