Privacy Without Compromise
Communicate with friends and family in complete confidentiality – no data snooping, no metadata collection, no compromises.
Communicate with friends and family in complete confidentiality – no data snooping, no metadata collection, no compromises.
All our Threema solutions are unique in their implementation, yet they are built on the same strong foundation. The three aspects of trust, transparency, and technology form the core of our philosophy and provide the basis for secure, reliable, and future-proof communication solutions.
Secure communication starts with trust. Threema protects your content through consistent end-to-end encryption – without requiring any personal information such as a phone number or email address. The principle of data minimization is at the core of our approach. Millions of users worldwide, both private individuals and businesses, rely on this security every day.
If you promise security, you have to prove it. Threema is open source, undergoes regular independent audits, and fully complies with all GDPR requirements. Instead of tracking or hidden data usage in our applications, we rely on consistent data minimization and clear processes, ensuring full transparency.
Modern, powerful, and versatile: Threema relies on future-proof technology to enable stable, cross-platform communication – whether for private use, within organizations, or fully self-hosted. With Active Directory and MDM integration, APIs, and a flexible infrastructure, Threema seamlessly adapts to any environment. Secure communication made in Switzerland.
Threema is the secure messaging app for individuals that consistently focuses on data protection and anonymity. Every message, call, and shared file is protected by proven open-source encryption technology. With Threema’s verification levels, you can see how trustworthy your contact is – so you know who you’re dealing with even without providing personal information.
Maximum control over your digital identity: you decide how much you want to disclose
Your conversations are guaranteed to be visible only to you and your contacts – never to us or third parties
No collection of user data, no ads
Anonymous use without providing a phone number or email address thanks to a randomly generated Threema ID
Get a truly trustworthy messenger without hidden agendas or backdoors: chats, contact lists, and groups are managed in a decentralized manner directly on the involved devices – no data is stored on a server. This way, your communication remains private and fully under your control at all times.
End-to-end encrypted voice, video, and group calls
Open source
No sharing of your messages with AI
Regular security audits conducted through external experts
Perfect Forward Secrecy prevents past messages from being decrypted even if a key is stolen
No advertising, no data trading, no hidden interests
100% Swiss made and GDPR-compliant
Enjoy all the features of a modern communication app in an environment that respects and protects your privacy. Threema Private can be used as a mobile app and on the desktop.
Secure instant messaging
Group chats
Voice, video, and group calls
Voice messages
Exchange of photos, videos, and files
Create polls
Hide private chats and protect them with a passcode
Edit and delete sent messages
Protect your privacy – don’t pay with your data!
In a world full of digital surveillance, we create a safe haven for your personal communication. Since 2012, we have been committed to privacy, with a clear mission: your digital conversations belong only to you, today and in the future.
Discover the benefits of independent and secure communication – with Threema Private, the compelling alternative to WhatsApp, Signal, and Telegram.
Privacy by Design: no phone number or email address required
End-to-end encryption of all messages
Open source
Business solution available
Transparency report
Funding: app users
Jurisdiction: Switzerland
Phone number required
End-to-end encryption of all messages
Not open source
No business solution available [1]
Transparency report [2]
Funding: Meta/advertising
Jurisdiction: USA [3]
Phone number required
End-to-end encryption of all messages
Open source
No business solution available
No transparency report [4]
Funding: donations
Jurisdiction: USA [3]
Phone number required
No end-to-end encryption of all messages [5]
Open source
No business solution available
No transparency report [6]
Funding: Pavel Durov / subscriptions / advertising
Jurisdiction: unclear
WhatsApp Business isn’t intended for internal corporate communication but for the communication between small businesses and their customers.
There’s no transparency report specifically for WhatsApp, but parent company Meta publishes a company-wide one.
The CLOUD Act entitles US authorities to access data from US IT service providers (even if the data is not stored in the US).
Signal’s transparency report seems to be grossly incomplete and/or badly out of date.
Telegram: End-to-end encryption can be optionally enabled in single chats, but this feature is disabled by default and neither available in group chats nor compatible with parallel use of the service on multiple devices.
Telegram's regional transparency report is only accessible via the Telegram app and does, for example, not provide any results for Switzerland, which is highly dubious given the size of Telegram’s user base.
one-time
The world’s best-selling secure messenger
Can be used anonymously, comprehensive end-to-end encryption for maximum security of sensitive data
Zero-knowledge architecture for the highest security requirements
Swiss quality that effectively protects your privacy
Trustworthy and verifiable: open source with reproducible builds
We finance ourselves exclusively through app revenue, not by selling your data
