Secure communication,
made in Europe
End-to-end encryption with Signal Protocol, GDPR and NIS2 compliance, data hosted in Europe. The sovereign alternative to US platforms.
Free sign-up · No credit card
Features
Everything your organization needs
A complete platform that replaces WhatsApp + Slack + Trello — with end-to-end encryption and European regulatory compliance.
Signal Protocol
The same protocol used by Signal. End-to-end encryption for all messages and files — even system administrators cannot read your content.
Communities
Create communities with individual personas, secure QR-code invites, and complete member and role management.
Voice and Video
Encrypted WebRTC calls with STUN/TURN support. Works across all networks, including corporate firewalls.
Tasks and Projects
Task management with deadlines, priorities, and project organization. All information is encrypted and under European sovereignty.
Cross-platform
Progressive web app for desktop and mobile. Native iOS app with CallKit integration for calls.
European Compliance
Compliant with GDPR, NIS2, and ePrivacy. No tracking, no ads, no data selling. Ready for regulatory audits.
Encrypted File Transfer
Send files with client-side AES-256-GCM encryption. The server stores only the encrypted blob — the decryption key never leaves your device.
Digital Sovereignty
The European alternative to US platforms
84% of European leaders consider digital sovereignty critical, yet most organizations still rely on US tools like Teams, Slack, and WhatsApp — exposed to CLOUD Act and foreign jurisdiction over their data.
Tertúlias is built in Europe, for Europe. No dependency on US infrastructure, no vendor lock-in, no compromise on privacy.
- Data hosted exclusively in the European Union
- No US jurisdiction exposure (CLOUD Act, FISA)
- Aligned with GDPR, NIS2, and ePrivacy Directive
- Open source and auditable
- End-to-end encryption across all communication
Security
Enterprise-grade security infrastructure
All encryption and decryption happens on the user device. The European server never has access to communication content.
- Signal Protocol — Double Ratchet with perfect forward secrecy
- AES-256-GCM for file encryption
- Keys stored only on user devices
- WebRTC with DTLS-SRTP for secure calls
- No server access to communication content
- Open source and auditable codebase
How it works
Start in 3 steps
Get started with Tertúlias in under one minute.
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Create your account
Sign in with your Google account. No extra passwords to remember.
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Create or join a community
Create your own community or join an existing one using an invite or QR code.
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Start communicating
Send encrypted messages, make calls, and organize tasks with your team.
Ready to communicate with European sovereignty?
Join Tertúlias and protect your organization's communications with military-grade encryption and European compliance.
Start for free