Signal vs Threema: Which Secures Business Communication?
Discover how US-based Signal and Swiss Threema compare in safeguarding your business chats. Uncover essential differences today.
Should You Switch to Threema?
Gain GDPR compliance and enhanced privacy protections.
Signal has more features; some capabilities may be missed.
Switch if privacy is your priority; stay with Signal for features.
At a Glance
US data laws
GDPR protected
Signal
Contact
Threema
freemium
Privacy & Compliance Comparison
Critical data sovereignty factors at a glance
| Criteria | Signal | Threema |
|---|---|---|
Server Location | US | CH |
GDPR Compliance | Unknown | Full |
Open Source | ||
E2E Encryption | ||
Data Portability | Limited | Unknown |
CLOUD Act Notice
Signal is a US company and must comply with CLOUD Act data requests, even for data stored in EU data centers. Threema is not subject to US jurisdiction.
Signal
🇺🇸Signal
Threema
🇨đź‡Threema
US Data Storage
Data subject to US CLOUD Act and may be accessed by US authorities
EU Data Protection
Data protected under GDPR with EU-only data residency
Certifications & Compliance
No certifications listed
Reasons to Switch
- ✓Threema stores data on Swiss servers, enhancing privacy protection.
- ✓Anonymous registration on Threema avoids phone number linkage.
- ✓Threema complies fully with GDPR, ensuring strict data handling.
- ✓Group chats on Threema can include up to 256 participants.
Things to Consider
- !Threema is not open source, limiting transparency in security.
- !Migrating contacts and chat history from Signal may be complex.
- !Threema has a learning curve for users familiar with Signal's UI.
Migration Overview
Depends on data size and complexity
Quick Steps
Create Threema account and configure settings
Export and prepare data from Signal
Import data, test integrations, and migrate users
Note: Threema offers strong privacy features and does not require a phone number for registration, which aligns well with Signal's privacy focus.
Other alternatives to Signal
Ready to make the switch?
Start using Threema today and take control of your data privacy.

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