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On July 8, 2026, Threema GmbH was converted into Threema AG. Previously, the company operated through two legal entities: Threema GmbH and Threema Holding AG. To simplify the corporate structure, these entities were merged into a single company: Threema AG.

This change has no impact on our users. The company’s headquarters will remain in Switzerland. All contracts and obligations of Threema GmbH have been transferred to Threema AG and will remain unchanged.

New article:
Messenger Interoperability: Well-Intended, but Bad for Data Privacy

WhatsApp has been open to third-party messaging services since fall 2025. Under the EU’s Digital Markets Act (DMA), the platform is required to support interoperability with alternative chat services. While we support the DMA’s underlying goals, we have decided not to implement interoperability with WhatsApp for several reasons.

Two puzzle pieces facing each other that do not fit together on a green background.

Smartphone displaying two chat bubbles, one saying "Do's" and the other "Don'ts".

Threema Private

September 25, 2025

The Unwritten Rules of Chat Communication

Do you think instant messaging is the same as any other form of written communication? Think again. Over time, various unwritten rules have emerged that need to be observed if you want to get your chat message across correctly. We have compiled a few of these rules of etiquette in this (not-quite-serious) blog post.

A balance scale illustration showing green blocks with checkmark and shield icons outweighing red blocks, symbolizing benefits of encryption for all outweighing mass surveillance for crime prevention.

Threema Private

September 12, 2025

Privacy for Everyone vs. Mass Surveillance for Crime Prevention

Have you ever heard the phrase “I have nothing to hide”? It’s often used by people who advocate government surveillance as a means of combating crime. According to this logic, however, anyone who is not a criminal has nothing to hide and therefore does not need an encrypted communication channel. This assumption is not only wrong, but also quite dangerous.

A laptop screen displaying a video conference with multiple participants and a shared presentation slide.

Threema Work

September 10, 2025

Screen Sharing: Now Available in Threema Work’s Desktop App

Threema Work’s new desktop app (beta) has received an update: it is now possible to share your screen with all participants in group calls on the desktop. This facilitates collaboration and ensures greater clarity in every meeting.

Threema Private

August 29, 2025

How to Protect Your Chats from Prying Eyes

Whether you’re organizing a surprise party, planning a marriage proposal, or running a diary note group, sometimes there are messages or chats that are not meant for prying eyes. In Threema, these chats can be marked as private and even hidden from the chat overview.

Illustration of three employees, two marked with checkmarks and one being removed by a hand, symbolizing staff change.

Threema Work

August 19, 2025

When Employees Leave: Secure Offboarding with Threema Work

Staff changes are part of every organization. In most cases, there are structured processes in place to ensure that nothing falls through the cracks. With employee departures, it is essential to take communication solutions into account – after all, trade secrets, customer data, and other company information must remain within the company and should not be accessible on the private devices of former employees.

Illustration of a secured building inside a blue circle, surrounded by padlock icons, symbolizing data protection. A green check mark indicates the building is secure.

Threema Work

July 31, 2025

What is data privacy? And why should your business care?

In today’s hyperconnected world, where every message, file, and decision passes through digital systems, data privacy has become more than a legal requirement – it’s a core business responsibility. However, many companies still view privacy as something to be “handled by IT” or as a matter of ticking boxes to comply with regulations. That mindset is outdated and dangerous.

Globe emoji, heart-eyes emoji, and calendar emoji surrounded by other emojis, celebrating World Emoji Day.

Threema Private

July 17, 2025

Fun Facts to Celebrate World Emoji Day

Every year on July 17, World Emoji Day is celebrated. Because emojis have become indispensable for chat communication – whether as a reaction to a message or directly in the text – we have put together a few fun facts about the little pictograms.

Smartphone with secure messaging app behind barrier and question marks – indicates access restriction.

Threema Private

July 15, 2025

How to Get Your Friends to Use Threema

You use Threema, but your contacts can’t get away from WhatsApp and Co.? If this situation sounds familiar, here are a few practical tips and arguments that can help you convince those around you to use a messaging service that respects their privacy.

Shopping cart surrounded by terms like age, income, interests – symbolizes data-driven consumer behavior.

Threema Private

June 17, 2025

Online Ads and Data Privacy

Meta recently announced that WhatsApp will start to show ads to its users. We wanted to outline why online ads and data privacy are fundamentally incompatible, but as it turns out, WhatsApp beat us to it – by exactly 13 years.