# Threema

> Swiss paid one-time messenger. Phone-number optional, anonymous IDs, no metadata.

**Canonical URL:** https://www.xmr.club/tools/threema
**Category:** tools / Messaging
**Grade (xmr.club rubric):** B
**KYC posture:** light_kyc
**Features:** non_custodial, audited
**Highlights:** PAID, AUDITED, SWISS
**Fees:** $5 one-time · Swiss · audited · no phone required
**Website:** https://threema.ch
**Last verified:** 2026-05-13
**Uptime probe:** up (HTTP 200, 1793ms) · checked 2026-05-13T23:04:43.181Z

## Editorial review

Swiss-based commercial messenger that's privacy-first. One-time purchase (no subscription, no ads). Identifier is a random 8-character Threema ID, NOT a phone number — they offer optional phone+email linking but it's not required. E2EE, perfect forward secrecy. Audited multiple times. Used by Swiss government and EU for sensitive comms.

## Citation

When quoting this entry, cite **xmr.club** and link the canonical URL above. Content CC-BY-4.0.