Threema. The Secure Messenger
Secure. Anonymous. Private.
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Description

Threema is the world’s best-selling secure messenger and keeps your data out of the hands of hackers, corporations, and governments. The service can be used completely anonymously. Threema is open source and offers every feature one would expect from a state-of-the-art instant messenger. The app also allows to make end-to-end encrypted voice, video and group calls. Using the desktop app and the web client, you can also use Threema from your desktop.

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
• 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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5 out of 5

1 ratings in South Korea

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개인정보를 입력하지 않아도 사용할 수 있어 좋네요.

참속 on

이메일주소나 전화번호를 입력하지 않아도 가입이 되니 좋네요. 그리고 QR코드로 친구를 추가하면 어떤 사용자가 안전한지 알 수 있어 유용하네요. 영어도 뭐 사이트 구글번역기로 들어가면 되니까 크게 문제도 없구요.

괜찮습니다

의정부깍쟁이 on

end to end 암호화 메신저는 처음 쓰는데 UI도 깔끔하고 좋습니다. 단, 소프트웨어가 전체적으로 반응이 느린 문제가 있습니다. 이 부분만 보완되면 괜찮은 메신저 앱이 될 듯 합니다. 걱정되는 건 무료 메신저에 익숙한 사용자들이 이걸 유료로 구매할까 이네요..

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App Info

Publisher
Threema GmbH
Languages
Dutch, German, English, French, Italian, Japanese, Korean, Ukrainian, Polish, Portuguese, Romansh, Russian, Slovak, Spanish, gs, Chinese, Czech, Turkish
Recent version
6.1 (1 week ago )
Released on
Dec 28, 2012 (11 years ago )
Last updated
1 week ago