
Microsoft SQL
MySQL
PostgreSQL
Oracle Database 12c
Oracle DBaaS
SQLite
SAP HANA
Software AG webMethods
Loop Habit Tracker
Habitica
Habitify
Streaks
HabitKit - Habit Tracker
Everyday
HabitBull
everyday.app
Microsoft SQLI 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.
MySQL - The world's most popular open source database
Habitica - Habitica is a free habit building and productivity application.
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.
Habitify - The easiest way to keep track of your habits
Oracle Database 12c - Simplify database management and automate the information lifecycle with maximum security.
Streaks - The to-do list that helps you form good habits.