Who is behind Threema?

Manuel Kasper
Threema was founded in December 2012 by Manuel Kasper. The company was initially called Kasper Systems GmbH. Martin Blatter and Silvan Engeler were later recruited to develop an Android application that was released in early 2013.

Where is Threema app based?

Switzerland
All our servers are located in Switzerland, and we develop our software in-house. Each Threema user receives a random Threema ID for identification. A phone number or email address is not required to use Threema.

Can Threema be traced?

“Tracing of the message or call generated from the Threema are tough to locate.” The source said that on Threema like so many other secure applications, a user does not require to enter an email address or phone number to create an account, thus allowing the user to use the service with a very high level of anonymity.

Can you delete messages on Threema?

Open the chat, and tap on the title bar. Tap on “Media” in the bar that appeared below the title bar. Tap on “Edit”, select “Delete All”, and confirm.

Which is better Signal or Threema?

Like Signal, Threema uses end-to-end encryption, but it has one significant advantage – it doesn’t use any of your personal information, including your phone number. As we just pointed out above, Signal uses your phone number, so if you’re reluctant to share data with an app, Threema is the better choice here.

What happens when you block someone on Threema?

A blocked contact doesn’t see if he or she is blocked. Threema allows you to block messages from unknown users in general. You will find this option in “Threema > Settings > Privacy > Block unknown”.

What is Threema Web and how to host it?

Threema Web is a web application written in TypeScript with AngularJS 1. All that is required to host it is a web server that can deliver static content via https. We recommend using Nginx. Additionally, to build the release version yourself, a recent version of npm is required.

The company was initially called Kasper Systems GmbH. Martin Blatter and Silvan Engeler were later recruited to develop an Android application that was released in early 2013. In Summer 2013, the Snowden leaks helped create an interest in Threema, boosting the user numbers to the hundreds of thousands.

What can I do with the Threema mobile app?

In addition to text messaging, users can make voice and video calls, send multimedia, locations, voice messages, and files. 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.

How do I contact the Threema support team?

The Threema Support center consists primarily of a large, searchable FAQ, with helpful answers to the 150+ most frequently asked questions about their product. You can also contact the Support Team directly, although they request you confirm the answer to your question is not already covered in the FAQ before doing so.