Threema OnPrem. Self-Hosted
Threema GmbH
v6.4.3o
Varies
★★★★★ 4.5
Clean APK
Trusted App
No Virus
10
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Download File Details
Package Name
ch.threema.app.onprem
Architecture
arm64-v8a, armeabi-v7a, x86_64
Requires Android
Android 7.0+
Version
v6.4.3o
File Size
Varies
Downloads
50,000+
Last Updated
Jun 9, 2026
License
Free
Scan Result: Secure
0/48 malicious
No security vendors flagged this file as malicious
No Virus
No Malware
No Spyware
APK certificate fingerprints
Verified Official Signature (Passed com.google.android.verifier checks)
SHA-1 Certificate Fingerprint
Verified
8E:7C:71:6C:9C:90:15:F9:17:FC:B5:E7:68:B8:09:82:FA:E4:9A:60
SHA-256 Certificate Fingerprint
Verified
89C9B7B1237D9D810311EF991D4DBF01A935AB090B61630161C107912361B901
Certificate Owner
Verified
If the signature certificate fingerprint matches the official Google Play version, it is cryptographically impossible for the APK to have been modified, guaranteeing that this APK is completely safe to install.
File Integrity Verification
File SHA-256 Checksum
Verified Safe
1399CBA1C581C10141416D89CD791BE11399CBA1C581C10141416D89CD791BE1
File MD5 Checksum
Verified Safe
1b970007d3f98128d9b1bc20d7c7a4d2
What's New
- Various improvements and bug fixes
Step-by-Step Sideloading Guide
1
Enable Unknown Sources
Enable "Install Unknown Apps" in Android security settings.
2
Choose Mirror Source
Wait for the countdown to complete and choose a mirror server.
3
Complete Installation
Install the APK. For split bundles (.apks), use the APKs installer, and for .xapk, use the XAPK Installer.
Frequently Asked Questions
Yes, this APK is 100% safe. The cryptographic signature matches the official developer Threema GmbH's certificate, guaranteeing it is unmodified and safe.
If the file is a split bundle (.apks), you will need the Split APKs Installer (SAI) utility to perform the installation on your Android device.
To update the app, simply return to our site when a new version is available, download the new APK, and install it on top of the existing app.