PolyCal is an open-source (GPL-2.0-only) Android app by Jason Gyorog. The APK we host is 3.2 MB, it needs Android 7.0 or newer, and it declares 1 permission.
The file on this page is PolyCal 1.7, 3.22 MB, and it installs on Android 7.0 and newer.
We compared the signing certificate of this build with the certificate recorded the first time com.gyorog.polycal 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 GPL-2.0-only. We took this build from F-Droid, and the source for this exact version is linked below.
The most recent release upstream is from Apr 13, 2022, over 4 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
- 1.7
- Size
- 3.22 MB
- Requires Android
- API 24
- Package
- com.gyorog.polycal
- Signature checked on
- Sep 22, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-2.0-only
- Source code
- Source for this version
File SHA-256: 3fba5df718e4e61f647072e0f59e887b9de8462c2ce2c8a079600fcfec24040f
Signing certificate (SHA-256): b08c2c208ae0fdfcb5735823781e3020f3b467aaabc8c20171b653ab6968665a
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
- READ_CALENDAR
Screenshots
