Grit
Grit is a free, open-source productivity app for Android. A Simple ToDo List and Habit Tracker. It has 1,212 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid and Google Play.
github.com/shub39/Grit (opens in a new tab)
Data as of from the GitHub API and the F-Droid index; description from the project's repository or F-Droid listing. Report an error
About Grit
There are plenty of todo list and habit tracker apps for android. Some have the features I love while some have good UI design. While learning android I made this app for myself that brings together all the features that I like keeping everything simple. I eventually want to turn this app into a productivity hub with many social features like progress sharing in the form of beautiful cards.
Privacy and F-Droid
F-Droid builds Grit from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.
No anti-features flagged on the latest F-Droid build.
Screenshots
Screenshots from the app's F-Droid listing.
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Is Grit free and open source?
Yes. Grit's source code is public on GitHub under the GPL-3.0-only license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.
How do I install Grit?
You can install Grit from F-Droid (package com.shub39.grit) and from Google Play; the links are on this page. Its GitHub repository also publishes releases (latest: 6.3.0).
Is Grit still maintained?
The repository's most recent commit was on Oct 22, 2026. Its F-Droid listing was last updated on Oct 15, 2026. appsgit only lists apps whose repository had a commit in the last six months.