Backtalk
Backtalk is a free, open-source notes app for Android. Message yourself to stay organized. It has 101 GitHub stars and is released under the MIT license, and you can install it from F-Droid.
github.com/kys0ff/Backtalk (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 Backtalk
Backtalk is a private, self-chat notes app built with Kotlin and Jetpack Compose. It provides a familiar chat interface to talk to yourself—reply, reflect, and organize your thoughts—with a strong focus on privacy and simplicity.
Privacy and F-Droid
F-Droid builds Backtalk 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 Backtalk free and open source?
Yes. Backtalk's source code is public on GitHub under the MIT 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 Backtalk?
You can install Backtalk from F-Droid (package off.kys.backtalk); the links are on this page. Its GitHub repository also publishes releases (latest: v0.4.1).
Is Backtalk still maintained?
The repository's most recent commit was on Sep 17, 2026. Its F-Droid listing was last updated on Jul 28, 2026. appsgit only lists apps whose repository had a commit in the last six months.