Threema. Secure and private Messenger
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App 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, allows to make
end-to-end encrypted voice and video calls, and offers every feature one would expect from a state-of-the-art instant
messenger. With Threema Web, 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).
HIGHEST ENCRYPTION STRENGTH
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 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 and video calls
• Share videos pictures and
locations
• Send any type of file (pdf animated gif, mp3, doc, zip, etc.)
• Use Threema Web to chat from your
Desktop
• 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
App Store Optimization
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I will give it 2 stars cause I started getting advertisement whenever I open the app. I know you need finance to maintain the app running, and advertisement is needed. But it's best if you have the app as a free app then do ads, instead of us paying for the app and then still have the ads. Thanks a lot
Feb 23, 2021
Why cant disappeating messages be intergrated into the app. A times that gives self destruct under customizable times within 24hrs isnt that all that is missing from making this a really great app to use. Possible next to best
Feb 22, 2021
suddenly PIP doesn't work anymore. Updates shoud improve apps, and not limit the functionality.
Feb 23, 2021
Cool
Feb 22, 2021
Supposedly the best communications app, security and privacy wise. A notch better then Signal as it does not require mobile no. or email address to sign-in.
Feb 23, 2021
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