What's New
• If a vote in a poll was changed, this will be reflected in the generated system notification
• Other improvements and minor bug fixes
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 encrypts ALL your communications END-TO-END including messages, voice and video calls, group chats, media files and even status messages. You can rest assured that only the intended recipient can read your chats, and nobody else – not even us. 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 (requires iPhone 5s / iOS 10 or above)
• 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
iPhone Screenshots
(click to enlarge)
iPad Screenshots
(click to enlarge)
App Changes
- December 29, 2012 Initial release
- January 14, 2013 New version 1.2
- January 29, 2013 New version 1.3
- March 19, 2013 New version 1.4
- April 29, 2013 New version 1.5
- May 20, 2013 New version 1.6
- May 21, 2013 New version 1.6.1
- June 04, 2013 New version 1.6.2
- June 10, 2013 New version 1.6.3
- July 12, 2013 New version 1.6.4
- August 20, 2013 New version 1.6.5
- September 17, 2013 New version 1.6.6
- September 20, 2013 New version 1.6.7
- November 05, 2013 New version 1.7.1
- November 18, 2013 New version 1.7.2
- December 04, 2013 New version 1.7.3
- April 07, 2014 New version 1.8
- April 22, 2014 New version 1.8.1
- May 05, 2014 New version 1.8.2
- June 04, 2014 New version 1.8.3
- July 12, 2014 New version 1.9.1
- August 01, 2014 Price decrease: $1.99 -> $0.99
- August 02, 2014 Price increase: $0.99 -> $1.99
- August 18, 2014 New version 1.9.2
- October 05, 2014 New version 1.9.3
- October 06, 2014 New version 1.9.4
- October 25, 2014 New version 1.9.5
- November 04, 2014 New version 1.9.6
- December 17, 2014 New version 2.0.0
- January 25, 2015 New version 2.1.0
- February 12, 2015 New version 2.1.1
- April 30, 2015 New version 2.3.0
- May 12, 2015 New version 2.3.1
- June 21, 2015 Price decrease: $1.99 -> $0.99
- June 23, 2015 Price increase: $0.99 -> $1.99
- July 30, 2015 New version 2.4.0
- August 02, 2015 New version 2.4.1
- August 10, 2015 New version 2.4.2
- November 14, 2015 New version 2.4.3
- December 07, 2015 New version 2.5.0
- December 12, 2015 Price decrease: $1.99 -> $0.99
- December 13, 2015 Price increase: $0.99 -> $1.99
- February 02, 2016 New version 2.6.0
- February 08, 2016 New version 2.6.1
- February 19, 2016 Price increase: $1.99 -> $2.99
- February 19, 2016 Price increase: $1.99 -> $2.99
- June 23, 2016 New version 2.7.2
- July 20, 2016 New version 2.7.3
- November 05, 2016 New version 2.7.5
- December 13, 2016 New version 2.8.0
- June 13, 2019 New version 4.2.3
- August 16, 2019 New version 4.3.2
- November 04, 2019 New version 4.4.1
- November 18, 2019 New version 4.4.2
- December 10, 2019 New version 4.4.3
- December 24, 2019 Price decrease: $2.99 -> $0.99
- January 07, 2020 Price increase: $0.99 -> $2.99
- July 14, 2020 New version 4.5.4
- August 18, 2020 New version 4.6
- October 26, 2020 New version 4.6.2
- November 12, 2020 New version 4.6.3
- December 22, 2020 Price decrease: $2.99 -> $0.99
- January 05, 2021 Price increase: $0.99 -> $2.99
- January 25, 2021 New version 4.6.4
- February 01, 2021 New version 4.6.5
- May 12, 2021 New version 4.6.8
- June 02, 2021 New version 4.6.9
- July 10, 2021 New version 4.6.10
- August 19, 2021 New version 4.6.11
- August 25, 2021 Price increase: $2.99 -> $3.99
- September 13, 2021 New version 4.6.12
- October 26, 2021 New version 4.6.13
- January 08, 2022 New version 4.6.14
- January 20, 2022 New version 4.6.15
- March 08, 2022 New version 4.6.16
- March 15, 2022 New version 4.6.17
- April 22, 2022 New version 4.6.18
- June 30, 2022 Price increase: $3.99 -> $4.99
- September 26, 2022 New version 4.8
- September 28, 2022 New version 4.8.1
- October 10, 2022 New version 4.8.2
- October 17, 2022 New version 4.8.3
- November 03, 2022 New version 4.8.4
- November 29, 2022 New version 4.8.5
- December 09, 2022 Price decrease: $4.99 -> $1.99
- December 16, 2022 Price increase: $1.99 -> $4.99
- January 04, 2023 New version 4.9.1
- January 05, 2023 New version 4.9.2
- January 23, 2023 New version 4.9.3
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