Latest Version
5.6.1
November 26, 2024
Threema GmbH
Communication
Android
0
$6.99
ch.threema.app
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More About Threema. The Secure Messenger
Threema is a messaging application that prioritizes privacy and anonymity for its users. This is achieved through various features and practices that limit the collection and misuse of personal information. The app is fully compliant with European privacy legislation and is designed to generate as little data on servers as possible. This means that group memberships, contact lists, and messages are all managed and stored on the user's device, and are immediately deleted after being delivered. Additionally, all local files are encrypted on the user's mobile phone or tablet.
The app also boasts rock-solid encryption for all forms of communication, including messages, voice and video calls, group chats, and even status messages. This is achieved through the use of the trusted open source NaCl cryptography library, and the encryption keys are generated and stored on the user's device to prevent backdoor access or copies.
Threema offers a comprehensive set of features, including the ability to write text and send voice messages, make voice, video, and group calls, share videos, pictures, and locations, and send any type of file. Users can also use the desktop app or web client to chat from their computer, create groups, conduct polls, and choose between a dark and light theme. The app also has a unique agree/disagree feature for quick and silent replies, and users can verify the identity of a contact by scanning their personal QR code.
All of Threema's servers are located in Switzerland, and the app is developed in-house. This ensures full anonymity for users, as each user receives a random Threema ID for identification. No phone number or email address is required to use the app, allowing for complete anonymity without the need to give up private information or open an account.
The source code of the Threema app is open for everyone to review, and the app undergoes regular security audits by renowned experts. Threema is also not financed by advertising and does not collect user data, ensuring a completely ad-free and private experience for users. In case of any questions or problems, users can consult the app's FAQs for support.
PRIVACY AND ANONYMITY
Threema is designed from the ground up to generate as little data on servers as possible. Group memberships and contact lists are managed on your device only and never stored on our servers. Messages are immediately deleted after they have been delivered. Local files are stored encrypted on your mobile phone or tablet. All this effectively prevents the collection and misuse of your personal information, including metadata. Threema is fully compliant with the European privacy legislation (GDPR).
ROCK-SOLID ENCRYPTION
Threema end-to-end encrypts all your communication, including messages, voice and video calls, group chats, files, and even status messages. Only the intended recipient, and nobody else, can read your messages. Threema uses the trusted open source NaCl cryptography library for encryption. The encryption keys are generated and safely stored on the users’ devices to prevent backdoor access or copies.
COMPREHENSIVE FEATURES
Threema is not only an encrypted and private messenger but also versatile and feature-rich.
• Write text and send voice messages
• Edit and delete sent messages on the recipient’s end
• Make voice, video and group calls
• Share videos pictures and locations
• Send any type of file (pdf animated gif, mp3, doc, zip, etc.)
• Use the desktop app or the web client to chat from your computer
• Create groups
• Conduct polls with the poll feature
• Choose between a dark and a light theme
• Quickly and silently reply with the unique agree/disagree feature
• Verify the identity of a contact by scanning their personal QR code
• Use Threema as anonymous instant messaging tool
• Synchronize your contacts (optional)
SERVERS IN SWITZERLAND
All our servers are located in Switzerland, and we develop our software in-house.
FULL ANONYMITY
Each Threema user receives a random Threema ID for identification. A phone number or email address is not required to use Threema. This unique feature allows you to use Threema completely anonymously – no need to give up private information or to open an account.
OPEN SOURCE AND AUDITS
The source code of the Threema app is open for everyone to review. On top of that, renowned experts are regularly commissioned to conduct systematic security audits of Threema’s code.
NO ADS, NO TRACKERS
Threema is not financed by advertising and does not collect user data.
SUPPORT / CONTACT
For questions or problems please consult our FAQs: https://threema.ch/en/faq
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