Threema OnPrem. Self-Hosted
Maximum security and total data ownership with Threema OnPrem for enterprises
Threema GmbH · ch.threema.app.onprem
UpdatedApr 20, 2026
PublishedNov 15, 2025
Packagech.threema.app.onprem
MD5efcc317532616ca0ff016f54e0d9b5b7
SHA1 (signer)8E:7C:71:6C:9C:90:15:F9:17:FC:B5:E7:68:B8:09:82:FA:E4:9A:60
Signed byCN=Threema GmbH, O=Threema GmbH, L=Pfaeffikon, ST=SZ, C=CH
Architecturesx86-64
Malware scanTRUSTED
Websitehttps://threema.ch/onprem
Contact[email protected]
Privacy policyView
What's new
- Improved thumbnails in notifications
Description
Threema OnPrem is the self-hosted communication solution for organizations with the highest security requirements. The combination of Threema’s proven security architecture and complete data sovereignty creates an independent communication environment that is unmatched in terms of confidentiality – ideal for government agencies, police forces, and industrial companies.
Advantages of Threema OnPrem:
• 100% data sovereignty through hosting on your own servers
• Proven Threema security architecture
• Confidential communication in teams, groups, and projects
• End-to-end encrypted voice and video calls
• Secure exchange of files and documents in all formats
• Cross-platform use thanks to mobile app, desktop app, and web client
• Additional protection of confidential chats with PIN or fingerprint
NOTE: Before you can use this app, Threema OnPrem must be set up on your company server. For more information, visit threema.com/onprem.
Enjoy using Threema OnPrem!
Advantages of Threema OnPrem:
• 100% data sovereignty through hosting on your own servers
• Proven Threema security architecture
• Confidential communication in teams, groups, and projects
• End-to-end encrypted voice and video calls
• Secure exchange of files and documents in all formats
• Cross-platform use thanks to mobile app, desktop app, and web client
• Additional protection of confidential chats with PIN or fingerprint
NOTE: Before you can use this app, Threema OnPrem must be set up on your company server. For more information, visit threema.com/onprem.
Enjoy using Threema OnPrem!
Permissions (41)
Threema OnPrem. Self-Hosted requests the following Android permissions:
- Access Coarse Location android.permission.ACCESS_COARSE_LOCATION
- Access Fine Location android.permission.ACCESS_FINE_LOCATION
- Access Network State android.permission.ACCESS_NETWORK_STATE
- Access Wifi State android.permission.ACCESS_WIFI_STATE
- Answer Phone Calls android.permission.ANSWER_PHONE_CALLS
- Authenticate Accounts android.permission.AUTHENTICATE_ACCOUNTS
- Bluetooth Connect android.permission.BLUETOOTH_CONNECT
- Call Phone android.permission.CALL_PHONE
- Camera android.permission.CAMERA
- Foreground Service android.permission.FOREGROUND_SERVICE
- 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
- Get Accounts android.permission.GET_ACCOUNTS
- Internet android.permission.INTERNET
- Manage Accounts android.permission.MANAGE_ACCOUNTS
- Modify Audio Settings android.permission.MODIFY_AUDIO_SETTINGS
- Post Notifications android.permission.POST_NOTIFICATIONS
- Read Contacts android.permission.READ_CONTACTS
- Read Media Images android.permission.READ_MEDIA_IMAGES
- Read Media Video android.permission.READ_MEDIA_VIDEO
- Read Media Visual User Selected android.permission.READ_MEDIA_VISUAL_USER_SELECTED
- Read Phone State android.permission.READ_PHONE_STATE
- Read Sync Settings android.permission.READ_SYNC_SETTINGS
- Receive Boot Completed android.permission.RECEIVE_BOOT_COMPLETED
- Record Audio android.permission.RECORD_AUDIO
- Use Biometric android.permission.USE_BIOMETRIC
- Use Fingerprint android.permission.USE_FINGERPRINT
- Use Full Screen Intent android.permission.USE_FULL_SCREEN_INTENT
- Vibrate android.permission.VIBRATE
- Wake Lock android.permission.WAKE_LOCK
- Write Contacts android.permission.WRITE_CONTACTS
- Write Sync Settings android.permission.WRITE_SYNC_SETTINGS
- Ch Threema App Onprem Dynamic Receiver Not Exported Permission ch.threema.app.onprem.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Com Android Launcher Permission Install Shortcut com.android.launcher.permission.INSTALL_SHORTCUT
- C2dm Permission Receive com.google.android.c2dm.permission.RECEIVE
- Com Huawei Android Launcher Permission Change Badge com.huawei.android.launcher.permission.CHANGE_BADGE
- Com Huawei Android Launcher Permission Read Settings com.huawei.android.launcher.permission.READ_SETTINGS
- Com Huawei Android Launcher Permission Write Settings com.huawei.android.launcher.permission.WRITE_SETTINGS
- Com Sonymobile Home Permission Provider Insert Badge com.sonymobile.home.permission.PROVIDER_INSERT_BADGE
