Two angled smartphones display a four-person video call with diverse cartoon avatars
Threema Private

End-to-End Encrypted Group Calls for Everybody!

Group calls become available across the board, unleashing their full potential and allowing all Threema users to conduct end-to-end encrypted voice and video calls in group chats.

Threema Private

Pay Threema’s Android App with Cash and Remain Anonymous

Threema Private

Threema for iOS: Chat on the Computer Without a Connection to the Smartphone

Starting today, Threema’s innovative new desktop app is available to all iOS users as a stable beta version that can be used as a daily driver.

Chalk-style blackboard blueprint of a padlock with 'Ibex' label and measurement lines
Threema Private

Security Proof of Threema’s Communication Protocol

When it comes to cryptographic protocols, a formal security proof is the ultimate hallmark of quality. German researchers now provide such a proof for the Ibex protocol, confirming that Threema’s security is based on a rock-solid foundation.

Three smartphone screens side by side showing chat app interfaces in light and dark themes with personalized backgrounds
Threema Private

Individual Chat Wallpapers in Threema for iOS

Threema Private

World Press Freedom Day

In modern democracy, the press plays such an essential role that it is often described as the “Fourth Estate.” Without independent news coverage, and thus without the watchdog function of the press, political processes could not be reviewed by the public.

Threema Private

Threema for iOS Improves OS Integration

All good things come in threes: the latest Threema update for iOS introduces profile pictures in push notifications, contacts in the Share Sheet, and Siri suggestions, thereby improving the app’s OS integration quite a bit.

Threema Private

Open Letter to the British Government Regarding the Online Safety Bill

In addition to the EU’s so-called “chat control,” there’s another European draft legislation that uses child protection as a pretext for full-scale surveillance of chat communication without probable cause: the UK’s Online Safety Bill. Together with other messaging services, we take a firm stand against this legislative proposal.

Front view of smartphone displaying blueprint-style chat interface with text bubbles and audio waveforms
Threema Private

Threema 5.0 for iOS: Fresh, Fast, Modern

Just like you occasionally replace old photos on the wall with new ones, apps also need a fresh touch every once in a while. Now, Threema’s iOS app presents itself in a new look: since the 4.8 update, the user interface has been renewed step by step. With Threema 5.0 for iOS, the complete rewrite of the chat view has now received its finishing stroke.

Follow us

Threema

Made in Switzerland © 2026 Threema GmbH.