Secure. Anonymous.
Trusted by millions.

for individuals
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Threema Work
for companies
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Threema – The secure messenger for individuals and companies

A Decade of Seriously Secure Messaging

Ten years ago, on 12/12/2012, the first ever Threema version was published in Apple’s App Store.

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A Decade of Seriously Secure Messaging

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Candid Camera: Ice Cream in Exchange for Your Data

Threema Work: Protect your business chats

Success Story Hardtschule Durmersheim

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Secure Communication for Individuals with Threema

Pay once, chat forever. No collection of user data. Open Source.

Thanks to consistent end-to-end encryption, no one other than the intended recipient can read transmitted messages, not even Threema as the service operator. It’s not required to provide any personal data whatsoever: If so desired, Threema can be used completely anonymously, i.e., without disclosing one’s phone number or email address. Threema was built from the ground up with data protection and privacy in mind (Privacy by Design), which is why only as little metadata as possible is generated when using the service.

Threema is 100% Swiss Made, hosts its own servers in Switzerland*, and, unlike US services (which are subject to the CLOUD Act, for example), it is fully GDPR-compliant.

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No collection of user data, no ads
100% Swiss Made
Guaranteed privacy and strong encryption
Chat anonymously:
No phone number required

Use Threema on your smartphone, tablet, or on your desktop computer

Download now

Secure Communication for Companies
with Threema Work

Trusted by millions. Reviewed by security experts. Built for business.

Instant messaging has become a crucial part of everyday business life some time ago, and it has replaced email in many instances. The chat application Threema Work enables companies to make use of instant messaging for corporate communication without taking any risks.

Every company benefits from a secure and privacy-compliant WhatsApp alternative. With the company messenger Threema Work, employees communicate within the team in a fast, efficient, and straightforward manner – without the danger of business secrets or user data getting into the wrong hands. Also, there’s no more reason for the staff to adopt a dangerous shadow IT.

Collaboration solutions such as MS Teams pose considerable legal risks for companies due to their lack of effective end-to-end encryption and metadata protection. Therefore, such tools cannot be considered a substitute for a secure instant messenger. This is where the business messenger Threema Work comes in.

Efficient administration
Targeted information distribution
Automation and integration
Threema Work: business application for the smartphone and the desktop

The Business Solutions
at a Glance

Threema Work

The secure enterprise messaging solution offers convenient user management, extensive app configuration and administration options, and numerous additional features tailored to the professional needs of organizations.

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Threema OnPrem

Threema’s self-hosting solution provides maximum security and total data ownership for companies with exceptional standards.

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Threema Broadcast

The useful tool for targeted top-down communication via feeds, distribution lists, bots, and centrally managed group chats.

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Threema Gateway

The messaging API enables you to send and receive Threema messages using your own software.

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KBC Mercedes-Benz Emirates
Edeka BW TK

Over 7,500 companies and organizations use Threema Work as their business-messaging service.

Customer testimonials
Secure video calls via the Threema app for individuals and companies
User profile with contact details in the Threema messenger
Surveys/polls in the Threema chat app

Threema is a

Security and privacy are deeply ingrained in Threema’s DNA. Since 2012, we have been vigorously committed to ensure that our users can communicate without having to worry about privacy and security. We will continue to base both the software development and our business decisions on our users’ security and data protection.

Available Since


Number of Users


Number of Corporate Customers


68,000 Play Store Reviews

4.4 of 5

From software development to customer support, everything is taken care of in-house. The direct dialogue with our users is just as important to us as a pleasant working atmosphere.

Stay in the Loop

You can hide everything from us. #Anonymity #E2EEncryption We don’t hide anything from you. #OpenSource #E2EEncryption That’s a healthy service–user relationship.

07:32 · 12.09.2023

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* Group calls can be routed through media routers outside of Switzerland, depending on the location of the participants. Learn more