Clean Timer is an open-source (MIT) Android app by Matt Zhang. The APK we host is 1.6 MB, it needs Android 4.0 or newer, and it declares 1 permission.
The file on this page is Clean Timer 1.1, 1.56 MB, and it installs on Android 4.0 and newer.
We compared the signing certificate of this build with the certificate recorded the first time com.mzhang.cleantimer entered the site, and published both the file's SHA-256 and the certificate's fingerprint above so you can check the download yourself. That comparison says the file was not repackaged by someone else; it is not a review of what the app does.
The manifest inside the APK declares 1 permission, none of which cover contacts, location, SMS, the camera or the microphone.
Its licence is MIT. We took this build from F-Droid, and the source for this exact version is linked below.
The most recent release upstream is from Oct 4, 2021, over 5 years ago. It still installs; it is simply not being updated.
We do not show a star rating or an install count for this page: we have no measured figure for either, and a number we cannot source is worth less than an empty field.
- Version
- 1.1
- Size
- 1.56 MB
- Requires Android
- API 15
- Package
- com.mzhang.cleantimer
- Signature checked on
- Sep 21, 2026
- Where this file came from
- F-Droid
- Licence
- MIT
- Source code
- Source for this version
File SHA-256: 7220acf551e8c729a0df8e1809209f2dff8eec0ec77cc88456f211b05a375cec
Signing certificate (SHA-256): 227d003dae40247663d42d34cd26a816380384d8dc7d8f6ada84053fa5398f49
We check that this file carries the same signing certificate as earlier releases of the same package. That shows the APK was not repackaged by someone else — it is not a security review of the app.
Declared permissions
- VIBRATE
Screenshots
