tuner, metronome, and piano
About this app
Semitone is a tool for musicians that includes a tuner, a metronome, and a piano.
The design is as simple and easy-to-use as possible while implementing many useful details, such as:
* an option to set A4 pitch for alternative tunings * the ability to manually set strong beats on the metronome * dynamic resizing of the piano keyboard
Licensed under GPL-3.0-or-later, by Andy Tockman.
What's New in v1.3
Imported from the F-Droid repository index.
Version history
Jan 21, 2021 · 5.9 MB · Android API 16–30 · code 4
Imported from the F-Droid repository index.
SHA-256 287c5ea5332aac199b535fdab5be5d16bf26de8b57d2b7343bfb4f7357129230
May 23, 2019 · 5.9 MB · Android API 16–28 · code 3
Imported from the F-Droid repository index.
SHA-256 71418b7922062ed1c1900e75527e6acb731891cb40ef7fa86d71251da0ee6ce4
May 15, 2019 · 5.9 MB · Android API 16–28 · code 2
Imported from the F-Droid repository index.
SHA-256 73ab9745b98f5c601462f1079f9b29e83c21585df75b8edd8884585b2ad2c92a
Will it run on your device?
87%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be mn.tck.semitone is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 1.2 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Semitone first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Semitone, and a listing is removed when the evidence for it stops holding up.
Get Semitone
Every source we list for mn.tck.semitone is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
287c5ea5332aac199b535fdab5be5d16bf26de8b57d2b7343bfb4f7357129230
Signing certificate
547b8736d645494697fee57c186f233e5a9b3250440e314431579897363dc0fd
Permissions Required
What each permission lets Semitone do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
More Media Audio apps
More from F-Droid
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.