Threemavs
Wire
Both score similarly on sovereignty (86 vs 86). The right choice depends on the details below – open source, self-hosting, pricing and focus.
Score comparison
| Threema | Wire | |
|---|---|---|
| Sovereignty | 86 | 86 |
| Privacy | 93 | 90 |
| Open Source | 52 | 88 |
| Business fit | 74 | 80 |
| Migration ease | 60 | 62 |
| Pricing transparency | 80 | 74 |
| Enterprise readiness | 78 | 82 |
Features & facts
| Threema | Wire | |
|---|---|---|
| Country | Switzerland | Switzerland |
| Open Source | Yes | Yes |
| Self-Hosting | Yes | Yes |
| Cloud/SaaS | Yes | Yes |
| EU data residency | Yes | Yes |
| DPA / AV-Vertrag | Yes | Yes |
| ISO 27001 | Yes | Yes |
| Data location | Switzerland (Zurich); self-determined with Threema OnPrem | EU (Germany, Ireland); self-determined when self-hosting |
| From | on request | on request |
| Founded | 2012 | 2014 |
Threema
Switzerland
Swiss end-to-end encrypted messenger with a zero-knowledge architecture – servers in Switzerland, usable without a phone number.
Strengths
- End-to-end encryption with a zero-knowledge architecture
- Servers in Switzerland (ISO 27001), development in Switzerland
- Usable without phone number/email (data-minimising)
- Threema Work and OnPrem (self-hostable) for organizations
Weaknesses
- Only the app clients are open source; the server is proprietary
- More of a messenger than a full team collaboration hub
- Switzerland (EFTA), not an EU member state
Wire
Switzerland
Secure, open-source team communication from Switzerland/Germany – end-to-end encrypted chat, calls and files, self-hostable.
Strengths
- End-to-end encrypted chat, calls and files
- Client and server open source, self-hostable
- Swiss/EU setup, EU data centers, ISO 27001/27701
- Independent security audits available
Weaknesses
- Smaller integration ecosystem than Slack/Teams
- Self-hosting (Kubernetes stack) requires operational expertise
- Fewer app marketplace and automation options than large US providers
Choose Threema if…
- Public authorities and regulated industries
- Teams with the highest privacy requirements
- Data-minimising, secure messenger communication
Choose Wire if…
- Public authorities and regulated industries
- Teams with high confidentiality requirements
- Organizations replacing Slack/Teams in a sovereign way
Scores are editorial orientation, not legal advice. Details are based on public provider information and are not independently verified.