Threema OnPrem. Self-Hosted v5.6.1o
APK · 36.6 MB · version code 3001013 · Android 5.0+ · uploaded Nov 15, 2025
- Signature matches the Google Play version Details
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Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v6.5.3o, uploaded Oct 1, 2026 — about 10 months after this one.
- Size: this file is 36.6 MB; the latest is 43.8 MB (7.2 MB larger).
- Android: this version needs Android 5.0+; the latest needs Android 7.0+. Use this one if your device runs an older Android release.
- Both versions request the same permissions.
File information
- Version
- v5.6.1o (3001013)
- Uploaded
- Nov 15, 2025
- Size
- 36.6 MB
- Requires
- Android 5.0+ (API 21)
- CPU support
- ARM 64-bit
- Screen
- Small screens and larger
- MD5
- 5cd98dc7dcc72eca88aaee3b862edfd6
- Signing certificate (SHA-1)
- 8E:7C:71:6C:9C:90:15:F9:17:FC:B5:E7:68:B8:09:82:FA:E4:9A:60
- Signed by
- CN=Threema GmbH, O=Threema GmbH, L=Pfaeffikon, ST=SZ, C=CH
- File name
- ch-threema-app-onprem-3001013-72331793-5cd98dc7dcc72eca88aaee3b862edfd6.apk
- Package
- ch.threema.app.onprem
- Downloads (all versions)
- 50K+
- Age rating
- PEGI 3 · Everyone
What's new in v5.6.1o
- Refactoring of notification channels: Individual notification settings need to be set again
- Media can now be edited before forwarding
- The edit history can now be viewed for edited messages
- The job title and department can now be displayed for company contacts
Permissions (41)
This version requests 41 permissions, 14 of them sensitive.
- Answer phone calls Sensitive android.permission.ANSWER_PHONE_CALLS
- Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
- Bluetooth connect Sensitive android.permission.BLUETOOTH_CONNECT
- Call phone Sensitive android.permission.CALL_PHONE
- Camera Sensitive android.permission.CAMERA
- Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
- Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
- Read contacts Sensitive android.permission.READ_CONTACTS
- Read media images Sensitive android.permission.READ_MEDIA_IMAGES
- Read media video Sensitive android.permission.READ_MEDIA_VIDEO
- Read media visual user selected Sensitive android.permission.READ_MEDIA_VISUAL_USER_SELECTED
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
- Write contacts Sensitive android.permission.WRITE_CONTACTS
- Add home-screen shortcuts com.android.launcher.permission.INSTALL_SHORTCUT
- Authenticate accounts android.permission.AUTHENTICATE_ACCOUNTS
- Control vibration android.permission.VIBRATE
- Foreground service data sync android.permission.FOREGROUND_SERVICE_DATA_SYNC
- Foreground service media playback android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK
- Foreground service microphone android.permission.FOREGROUND_SERVICE_MICROPHONE
- Foreground service remote messaging android.permission.FOREGROUND_SERVICE_REMOTE_MESSAGING
- Full network access android.permission.INTERNET
- Home provider insert badge (custom) com.sonymobile.home.permission.PROVIDER_INSERT_BADGE
- Internal broadcast protection (app-defined) ch.threema.app.onprem.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Launcher change badge (custom) com.huawei.android.launcher.permission.CHANGE_BADGE
- Launcher read settings (custom) com.huawei.android.launcher.permission.READ_SETTINGS
- Launcher write settings (custom) com.huawei.android.launcher.permission.WRITE_SETTINGS
- Manage accounts android.permission.MANAGE_ACCOUNTS
- Modify audio settings android.permission.MODIFY_AUDIO_SETTINGS
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read sync settings android.permission.READ_SYNC_SETTINGS
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Show notifications android.permission.POST_NOTIFICATIONS
- Use biometric hardware android.permission.USE_BIOMETRIC
- Use fingerprint hardware android.permission.USE_FINGERPRINT
- Use full screen intent android.permission.USE_FULL_SCREEN_INTENT
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
- Write sync settings android.permission.WRITE_SYNC_SETTINGS
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Nov 15, 2025.
- Certificate issued to “Threema GmbH” This is the certificate of the Google Play version.
- Same certificate as the 5 other versions checked
Store checks
- Developer signature verified Nov 15, 2025
- Validated against Google Play Nov 15, 2025
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (5 other versions compared). AAPKs doesn't scan files itself.
How to install Threema OnPrem. Self-Hosted on Android 5.0+
You'll need about 73.1 MB of free space.
- Download the APK — tap Download APK above (36.6 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap ch-threema-app-onprem-3001013-72331793-5cd98dc7dcc72eca88aaee3b862edfd6.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 5cd98dc7dcc72eca88aaee3b862edfd6. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Threema OnPrem. Self-Hosted — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 5.0+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for ARM 64-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.