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Chronal

Chronal is a free, open-source education app for Android. Clean metronome & tuner with polyrhythms and notation editor. It has 111 GitHub stars and is released under the CC0-1.0 license, and you can install it from F-Droid and Google Play.

github.com/cognitivitydev/Chronal (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

Get it on F-Droid (opens in a new tab)Google Play (opens in a new tab)View on GitHub (opens in a new tab)

About Chronal

Chronal is a powerful, ad-free metronome and tuner built for musicians of all levels. Practice, rehearse, and perform with precise timing, advanced rhythm tools, and a chromatic tuner, all in one app. Metronome Features • Notation editor: Hear the rhythm that you see on the page. • Multiple synchronized metronomes: Layer independent rhythms for polyrhythms and advanced practice. • Beat & subdivision visualization: Clear visual indicators for beats and subdivisions. • Fullscreen mode: Focus on your music with large, easy-to-see visuals from a distance. • Conductor mode: Follow a visual conducting path to internalize timing.

Privacy and F-Droid

F-Droid builds Chronal 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

  • Chronal screenshot 1
  • Chronal screenshot 2
  • Chronal screenshot 3

Screenshots from the app's F-Droid listing.

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FAQ

Chronal FAQ

Still curious? Email info@appsgit.com.

Is Chronal free and open source?

Yes. Chronal's source code is public on GitHub under the CC0-1.0 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 Chronal?

You can install Chronal from F-Droid (package dev.cognitivity.chronal) and from Google Play; the links are on this page. Its GitHub repository also publishes releases (latest: v1.1.3).

Is Chronal still maintained?

The repository's most recent commit was on Aug 5, 2026. Its F-Droid listing was last updated on Jul 19, 2026. appsgit only lists apps whose repository had a commit in the last six months.