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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User Rating

3.07 out of 5

14 ratings in United Arab Emirates

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Ratings History

Reviews

Please add iOS group calls.

Nik pupysh on

Multi-device support is also nice, but group calls is a feature I really need. Otherwise the app is great.

iOS group calls are not exist

IamNotToxic on

Please add this feature

Picture edit

baiysh87 on

Hello, Could you please add feature to edit,crop, and mark picture. Also preloading of links like in whatsapp. Thank you.

Not working

GS12093498 on

Bought the app for some OTP directly from servers. It’s not working waste of money.

Can’t connect!!

El3in on

Since days hours aga I can’t connect the app to its network!! Its red and didn’t even goes to yellow!! Any body has same problem and how can we fix it!! OR did our country blocked the app??

App not connected

mshkaabi on

Since three days can’t use the app could you fix this error

I can’t open it !!!

AimFinder 444 on

After update my iOS to 11 I can’t open my app till I use VPN what happen ? I send a report to Threema channel but I haven’t any answer

Fantastic for chat

Mohamed Alhammadi on

Wonderful, very good and trusted app for chat. There are several feature can reach better than any normal chat, one of them which are: - Create "Broadcast list to save more than 50 or 100 what ever in software not in server" - ability to send photos, videos to those broadcast list. - ability to send multi receipt by chose anyone who are in contact list. Application is wonderful but those features will enhance to reach better level than normal features

please include mark option more than 5

chemmu cherkala on

please include more than 5 for fotos

The best

Farees11 on

Amazing app your privacy is protected with this cool app Thanks

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App Info

Publisher
Threema GmbH
Languages
Portuguese, German, Czech, Chinese, Korean, Slovak, Spanish, French, Dutch, English, Italian, Japanese, Polish, Romansh, Russian, gs, Turkish, Ukrainian
Recent version
6.1.2 (1 week ago )
Released on
Dec 28, 2012 (11 years ago )
Last updated
3 weeks ago