Threema The European alternative to WhatsApp / Signal

Open Source

Messenger without mandatory phone number registration from Switzerland

Switzerland E-Mail & Messaging instead of WhatsApp / Signal

Visit Threema Website → ← All Email Alternatives

About Threema

Open-source messenger that operates without a phone number and without storing metadata. Unlike WhatsApp, the software does not store contact lists or communication metadata and is subject to Swiss data protection standards.

Highlights

No phone number required - fully anonymous
End-to-end encryption for all messages
No metadata storage
Open source since 2020
Threema Work available for organisations

Why European?

Swiss data protection - among the strongest in the world
No CLOUD Act, no access by US authorities
Funded through user contributions, not advertising
No data sharing with third parties

Pricing

One-time €3.99 · Threema Work from €2.90/user/mo

Try Threema

Messenger without mandatory phone number registration from Switzerland

Visit Threema Website →

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