

AMSN ORG ADDRESS CODE
The QR code contains the public key of the user, which is cryptographically tied to the ID and will not change during the lifetime of the identity. Users can verify the identity of their Threema contacts by scanning their QR code when they meet physically.

Hence, the service can be used anonymously. Linking a phone number or email address to a Threema ID is optional. It is possible to find other users by phone number or email address if the user allows the app to synchronize their address book. Threema uses a user ID, created after the initial app launch by a random generator, instead of requiring a linked email address or phone number to send messages. This trend continued into the third week of the year, with the head of Marketing & Sales confirming that downloads had increased to ten times the regular amount, leading to "hundreds of thousands of new users each day". A spokesperson for the company also confirmed that Threema had risen to the top of the charts for paid applications in Germany, Switzerland, and Austria. In 2020, Threema expanded with video calls, plans to make its codebase fully open-source as well as introduce reproducible builds and Threema Education, a variation of Threema intended for education institutions.ĭuring the second week of 2021, Threema saw a quadrupling of daily downloads spurred on by controversial privacy changes in the WhatsApp messaging service. In December 2014, Apple listed Threema as the most-sold app of 2014 at the German App Store. In Spring 2014, operations were transferred to the newly created Threema GmbH.

By March 2014 Threema had 1.2 million users. Around 80% percent of those new users came from Germany.

When Facebook took over WhatsApp in February 2014, Threema got 200,000 new users, doubling its userbase in 24 hours. In Summer 2013, the Snowden leaks helped create an interest in Threema, boosting the user numbers to the hundreds of thousands.
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Martin Blatter and Silvan Engeler were later recruited to develop an Android application that was released in early 2013. The company was initially called Kasper Systems GmbH. Threema was founded in December 2012 by Manuel Kasper. As of May 2021, Threema had 10 million users and the business version, Threema Work, was used by 2 million users across 5,000 companies and organizations. The servers are in Switzerland and the development is based in Pfäffikon SZ. Threema is developed by the Swiss company Threema GmbH. A web app version, Threema Web, can be used on desktop devices, but only as long as the phone with the Threema installation of the user is online. In addition to text messaging, users can make voice and video calls, send multimedia, locations, voice messages, and files. This helps anonymize the users to a degree.
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The software is based on the privacy by design principles as it does not require a phone number or any other personally identifiable information. Threema is a paid open-source end-to-end encrypted instant messaging application for iOS and Android. NET (Windows Phone)Įnglish, German, French, Spanish, Italian, Russian, Brazilian Portuguese, Polish, Rumantsch GrischunĮncrypted instant messaging & voice calling
