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Threema. The Secure Messenger

Anonymity isn't a pipe dream; it's the default. Threema gives users their digital privacy back, uncompromisingly.

Key Figures

Downloads

2.5M+

User Rating

4.4/5

Total Ratings

26.2K

Publisher

Threema GmbH

An analytical overview of key features prioritizing user data protection and anonymous communication for discerning users.

Threema: Core Pillars of Privacy & Security

End-to-End Encryption

The app provides comprehensive end-to-end encryption for all communications, including chats, voice/video calls, and file transfers, ensuring only sender and receiver can access content.

No Data Collection or Tracking

This tool features a strict 'no data collection' policy, eliminating ads, trackers, and user data exploitation, aligning with strong privacy principles.

Anonymous Identity (Threema ID)

It allows users to communicate without linking their real-world identity, as a randomly generated Threema ID replaces the need for a phone number or email address.

Open Source & Audited Security

The app ensures transparency and trustworthiness through its open-source code and regular independent security audits, allowing experts to verify its security claims.

Swiss Servers

It hosts all user data on servers located in Switzerland, benefiting from the country's stringent privacy laws and data protection regulations.

Server-Side Message Deletion

The app promptly deletes messages from its servers immediately after they are delivered to the recipient, minimizing data retention and enhancing privacy.

FAQ

Frequently Asked Questions

Everything you need to know about Threema. The Secure Messenger

Is Threema a secure messenger?

Yes, Threema is a secure messenger that features end-to-end encryption for all communications, including chats, calls, and files. It prioritizes privacy and leaves no data trail.

Does Threema require a phone number or email for registration?

No, Threema does not require a phone number or email address for registration. It uses a randomly generated Threema ID for unique identification, enabling anonymous use.

Does Threema support voice and video calls?

Yes, Threema supports end-to-end encrypted voice, video, and group calls. These features are designed for secure communication and are listed among its advantages.

Can I use Threema on my desktop computer?

Yes, Threema offers both a desktop app and a web client. This allows users to chat conveniently from their PC.

Does Threema collect user data or show ads?

No, Threema does not collect user data. It features no ads, no trackers, and no data collection, focusing entirely on user privacy.

What types of files can I send using Threema?

Threema allows sending files in all formats, including PDF, GIF, MP3, and ZIP. Users can also share their location securely within chats.

Is Threema open source and regularly audited?

Yes, Threema is open source and undergoes regular audits. This commitment to transparency and security ensures its reliable privacy standards.

Can users create polls within Threema?

Yes, Threema includes a feature for creating groups and polls. This functionality enhances communication and decision-making within group chats.

Can I edit or delete messages I have sent in Threema?

Yes, Threema provides the ability to edit sent messages and delete them for chat partners. This ensures message control and privacy for users.

Where are Threema's servers located?

Threema's servers are located in Switzerland. This location contributes to its strong privacy and data protection policies, aligning with Swiss data protection laws.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

Description

Threema is the world’s best-selling secure messenger, used by more than 12 million people in over 175 countries, developed in Switzerland, and designed with privacy and data protection in mind. Whether chats, calls, or files, everything is end-to-end encrypted, and no data trail is left behind. Instead of a phone number or email address, a randomly generated Threema ID serves as a unique identifier – anonymous and secure. Threema protects what really matters: your privacy. Advantages of Threema: • Text and voice messages, including emoji reactions • End-to-end encrypted voice, video, and group calls • Location sharing • Sending files in all formats (PDF, GIF, MP3, ZIP, and more) • Ability to edit sent messages and delete them for chat partners • Desktop app and web client for convenient chatting on your PC • Group creation and polls • Light or dark mode • No ads, no trackers, no data collection • Identity verification of contacts by scanning their QR code Reliable security: • Open source and regular audits • Servers in Switzerland • Anonymous use possible: no phone number or email address required • Messages are deleted from the server immediately after delivery Do you have any questions or problems? Our FAQ can help: https://threema.com/support Enjoy using Threema!