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Threema is a Swiss secure messaging app designed around privacy from the ground up. It offers end-to-end encryption for messages and calls, and it’s especially known for letting people use the service without tying their identity to a phone number (optional).
Threema is used by individuals as well as organizations that want tighter control over business communication. That’s where products like Threema Work and Threema OnPrem come in—aimed at teams that value compliance, governance, and data protection.
Threema by the Numbers
- People using Threema: 12M+ (reported by Threema)
- Organizations using Threema: 8,000+ (reported by Threema)
- Best known for: privacy-first design and end-to-end encryption
Key Threema Metrics
| Metric | Value | Year (as reported) | Source |
|---|---|---|---|
| People worldwide who trust Threema | 12M+ | Listing current (accessed 2026) | Threema |
| Organizations who trust Threema | 8,000+ | Listing current (accessed 2026) | Threema (Business) |
What Makes Threema Different
- Optional identifiers: use without a phone number (depending on your setup).
- Encryption: end-to-end encryption for messaging and calls.
- Business controls: options for organizations with stronger governance needs.
FAQ
How many users does Threema have?
Threema states that over 12 million people worldwide trust Threema for secure communication.
How many organizations use Threema?
Threema states that more than 8,000 organizations use Threema for secure communication.
Do you need a phone number for Threema?
Threema is known for allowing usage without requiring a phone number, though users can optionally link identifiers for convenience.
