Threema: The Gold Standard for Secure, Anonymous Messaging
September 9, 2025
41 MB
6.1.3
5.0 and up
5,000,000+
Description
Privacy & Anonymity First
Unlike many popular messaging apps, Threema is built from the ground up with privacy in mind:
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No phone number or email required to sign up – users are identified by a randomly generated Threema ID.
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No data is stored on servers – not even your contact list or group memberships.
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Messages are deleted from servers immediately after delivery.
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All data stored on your phone is encrypted locally.
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Fully GDPR-compliant, respecting European privacy laws.
Your identity stays yours. Period.
Rock-Solid End-to-End Encryption
Threema encrypts everything. Literally.
| Encrypted by Default | ✅ |
|---|---|
| Messages | ✔️ |
| Group chats | ✔️ |
| Voice & video calls | ✔️ |
| Files and media | ✔️ |
| Status messages | ✔️ |
Encryption is done using NaCl, an open-source cryptography library known for its reliability and speed. Your encryption keys are stored securely on your device, not on servers – eliminating the risk of remote access or backdoors.
Packed with Features
Despite its security-first approach, Threema is as versatile as it is private:
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Send text and voice messages
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Make voice, video, and group calls
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✂️ Edit or delete messages (even on the recipient’s device)
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Send all file types: PDFs, GIFs, DOCs, ZIPs, MP3s, etc.
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Share locations, videos, and photos
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️ Use the web or desktop client to stay connected from your PC
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Create groups and manage them securely
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Conduct polls within group chats
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Choose between dark and light modes
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React to messages with emojis
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Verify contacts using their personal QR codes
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Use the app in anonymous mode
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Optional contact synchronization
Unlike other apps, Threema doesn’t trade features for privacy. You get the best of both.
Why Switzerland Matters
Threema’s servers are based in Switzerland, one of the world’s most privacy-friendly jurisdictions. The company also develops its entire software in-house, ensuring complete control over security and code integrity.
Open Source & Security Audited
Transparency is key to trust. Threema’s source code is publicly available and has undergone independent security audits by renowned experts. This ensures:
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No hidden tracking
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No backdoors
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No data misuse
You don’t have to take their word for it – the code is open for anyone to inspect.
No Ads. No Trackers. No Data Mining.
Threema is funded entirely through one-time app purchases and subscriptions, not your data. That means:
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No targeted ads
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No behavioral profiling
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No selling your information
Your privacy isn’t a feature – it’s the foundation.
App Information at a Glance
| App Name | Threema – The Secure Messenger |
|---|---|
| Version | 6.1.3 |
| Last Updated | September 9, 2025 |
| App Size | 41 MB |
| Downloads | 5,000,000+ |
| Released On | May 27, 2013 |
| Required Android | 5.0 and up |
| Offered By | Threema GmbH |
| Content Rating | Rated for 12+ (Parental Guidance) |
| In-App Elements | Users Interact |
| Price | One-time purchase (no ads, no trackers) |
✅ Fully compatible with devices like OPPO CPH2285 and many others.
Support & Contact
If you need help or have questions, consult the official FAQs or reach out:
Final Thoughts
If you care about privacy, data ownership, and true digital freedom, Threema is the most secure and trustworthy messenger on the market today. It’s perfect for professionals, privacy-conscious individuals, activists, journalists – and anyone who simply wants peace of mind while chatting.
Download Threema today – and take control of your conversations.
