Loop Habit Tracker

Loop Habit Tracker is an Android app that helps you create and maintain good habits in pursuit of long-term goals. It is completely ad-free and open source, and detailed graphs and statistics show how each habit improves over time.

A habit score uses a formula in which every repetition strengthens a habit and every missed day weakens it, so a few misses after a long streak do not wipe out progress. Schedules can be daily or more complex, such as three times per week or every other day. Each habit can have its own reminder, colorful home-screen widgets let you check habits without opening the app, and a night mode is included.

Data stays under your control: it can be exported to CSV spreadsheets or an SQLite database file, and checkmarks can be added through other apps. Loop is written in Kotlin and Java, has a minimalistic interface that is optimized for speed on older phones, and is licensed under GPL-3.0.