Presence Publisher is an open-source (MIT) Android app by ostrya. The APK we host is 3.0 MB, it needs Android 5.0 or newer, and it declares 17 permissions.
The file on this page is Presence Publisher 2.7.0, 3.03 MB, and it installs on Android 5.0 and newer.
We compared the signing certificate of this build with the certificate recorded the first time org.ostrya.presencepublisher 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 declares 17 permissions, including access to location in the background, precise location and approximate location. Android asks you to approve those the first time the app needs them.
Its licence is MIT. We took this build from F-Droid, and the source for this exact version is linked below.
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
- 2.7.0
- Size
- 3.03 MB
- Requires Android
- API 21
- Package
- org.ostrya.presencepublisher
- Signature checked on
- Sep 18, 2026
- Where this file came from
- F-Droid
- Licence
- MIT
- Source code
- Source for this version
File SHA-256: f14167fdaac5940cfa29665e1b4cf561c11f5120d91adf9bed64a9e54c28a5cb
Signing certificate (SHA-256): e05dca379f66dd2ad049831d497a4be3b84c24a87360b329db67fe3baa7702b4
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
- ACCESS_BACKGROUND_LOCATION
- ACCESS_FINE_LOCATION
- ACCESS_NETWORK_STATE
- ACCESS_WIFI_STATE
- BLUETOOTH
- BLUETOOTH_ADMIN
- BLUETOOTH_CONNECT
- BLUETOOTH_SCAN
- FOREGROUND_SERVICE
- FOREGROUND_SERVICE_DATA_SYNC
- INTERNET
- POST_NOTIFICATIONS
- RECEIVE_BOOT_COMPLETED
- FOREGROUND_SERVICE_LOCATION
- ACCESS_COARSE_LOCATION
- WAKE_LOCK
- org.ostrya.presencepublisher.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Screenshots



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