Threema, which is one of a handful of instant messaging services that support end-to-end encryption (E2EE) between users, is the third service to go open source, after Signal and Wickr. Threema can be used completely anonymously, allows to make end-to-end encrypted voice calls, and offers every feature one would expect from a … HIGHEST ENCRYPTION STRENGTH Threema end-to-end encrypts all your communication including messages, voice and video calls, group chats, files and even status messages. You can easily create a video call that consists of up to 25 people, see the official group calls page for more details. Threema is a product of Threema GmbH, a small, Switzerland-based company. Threema uses the trusted open source NaCl cryptography library for encryption. Threema. Threema can be used completely anonymously, 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. – Handy Poll Feature – Create polls in no time to gather the other group members’ opinions in an efficient manner. They impress with crystal-clear voice quality and brilliant video quality. Threema Work app: TCP ports 443 and 5222 need to be open for outgoing connections. and media transmissions, HTTPS port 443 is used. For directory queries (synchronization of contacts, etc.) Threema became popular in 2013 after Edward Snowden revealed the level of data being captured by the U.S. government, said Chester Wisniewski, a … Threema vs Signal: Group and team chat. The ability to have Signal group calls was launched as part of an update on Monday, the app announced in a blog post.The app has gained popularity … Threema Work is the secure and privacy-compliant messaging solution for organizations of all types and sizes. FreeBridge. I've used it for years, the fun part is that Perfect Forward Secrecy (PFS) is supported in the calls, but not in chats. Threema end-to-end encrypts all your communication, including messages, voice calls, group chats, files and even status messages. Only the intended recipient, and nobody else, can read your messages. – Voice and Video Calls – Place calls without revealing your phone number. Both of these apps have a group chat option that allows you to send encrypted messages to other users in the group (or unencrypted ones if you’re using Signal to chat with a user that doesn’t have the app). The team released their first version of the product in December 2012, and formally founded the company in 2014. Threema is fully compliant with the European privacy legislation (GDPR). Threema calls are end-to-end encrypted and thus tap-proof. Messages are transmitted through port 5222; port 443 serves as fallback in case of delays. Threema is the world’s best-selling secure messenger and keeps your data out of the hands of hackers, corporations, and governments. They launched Threema.Work (a version designed for organizational use) in … Calls: Threema offers phone calls, and its one of the best. Threema Web: if you go to web.threema.ch you can use your Threema account on the web, your cellphone needs to be online and scan a QR code to make that happen Threema is the world’s favorite secure messenger and keeps your data out of the hands of hackers, corporations and governments. Only … On Threema, your upload limit is 50 MB, regardless of the type of file you’re sending.