Independent Company

Threema is an independent company that represents typical Swiss values and is solely committed to its users.

Sound Principles

Threema is more than a chat app. Threema is a statement. A statement for privacy.

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. In the time to come, we will continue to base both the software development and our business decisions on our users’ security and data protection.

Only Committed to the Users

Threema is completely independent, and its business model is fully self-sustaining. Since no investors or funders are involved, Threema is solely committed to its users.

Genuine Swiss Company

Precision, reliability, and discretion are typical Swiss characteristics, and as a true Swiss company, Threema lives these values every day.

In-House Development and Customer Support in Switzerland

All software is developed in-house in Switzerland. No work is outsourced. Our dedicated support staff ensures consistent high quality and fast response times.

Company Infrastructure

Threema hosts its own servers in two independent and physically separated locations in Switzerland. In case of an outage in one location, the other location takes over to provide seamless service continuation.

Awards and Achievements

Threema is the best-selling chat app, it consistently scores top grades in messenger tests, and the community rewards it with excellent ratings.

Top Ratings and Reviews

Threema consistently receives top scores in the app stores. In the Google Play Store, the app has gained 4.6 out of 5 stars, based on more than 59,900 votes.

Best-Selling Chat App

Since 2014, the Threema app has continuously been at the top of the app charts. As of January 2020, Threema has attracted over 8 million users, including over 2 million Threema Work users.

Winner of Numerous Comparisons

Threema regularly emerges victorious in messenger comparisons and receives awards for its rock-solid security, its unparalleled privacy protection, and its ease of use.

General

Threema started life as an abbreviation: “EEEMA”, for “End-to-End Encrypted Messaging Application”. The three “E”s were a bit unwieldy, so it became “Threema”.

Threema is the world’s favorite secure messenger. It sets itself apart from others in the following respects:

  • Guaranteed privacy: Threema is designed to generate as little data on servers as technically possible.
  • Full anonymity: You are not forced to provide any personal information (such as your phone number or email address) in order to use Threema.
  • Optional contact synchronization: It’s not necessary to grant access to the address book in order to use Threema.
  • Comprehensive encryption: With Threema, all your communications are end-to-end encrypted – not only text messages and voice calls but also group chats, media files, and even status messages.
  • Comprehensive functionality: Threema is versatile and feature-rich.
  • Open standards: Threema uses a cryptographic library which is open source.
  • No-nonsense privacy policy: Threema’s transparent privacy policy is concise and fits on a sheet of paper.

Threema sets itself apart from other encrypted messengers in many respects, not only in terms of functionality or the encryption quality but also in regard to privacy protection. Learn more.

With Threema Work and Threema Gateway, Threema also provides solutions for secure communication in business contexts. 

In contrast to other messengers, your identity in Threema does not depend on a phone number. Each Threema user gets a randomly generated, 8-digit Threema ID when starting the app for the first time. This ID is your unique address in Threema and makes it possible to use Threema completely anonymously, without disclosing any personal information.

Your Threema ID is just one of two components that make up your identity in Threema. The other one is the so called key pair (consisting of a public key and a private key) which is essential for the encryption. Your Threema ID is permanently tied to your public key. While the public key is sent to Threema's servers to be distributed to your chat partners, the private key remains on your device where it is securely stored. All messages directed to you will be individually encrypted with your public key on the sender's device. They can only be decrypted with your personal private key.

Android iOS Windows Phone
Phone iPhone Phone
Tablets iPad Tablets
Wearables* (e.g. Smartwatch) Apple Watch*
Android Auto Apple CarPlay

Threema is fully supported.

Threema for Windows Phone is discontinued; the app will stop working by the end of June 2020.

Threema is not supported.


* If you are using Threema with an Android Wear smartwatch or an Apple Watch, you can read message previews, see chat pictures, agree/disagree to incoming messages and answer messages using dictation (or using Scribble on an Apple Watch).

Threema is currently available in the following languages:

  • English
  • Brazilian Portuguese
  • Czech (Android only)
  • Dutch
  • French
  • German
  • Italian
  • Polish (Android only)
  • Romansh
  • Russian
  • Spanish

If Threema is not available in the device’s system language, the user’s preferred languages (as defined in the system settings) will be taken into account (on Android 7.0 and on iOS). As a last resort, English will be used.

Threema is tailored to the needs of private users. For business use, we recommend Threema Work.

Yes. Special offers are available for schools, universities, and NGOs: