What it does

Threema. The Secure Messenger offers text and voice messaging, calls, and file sharing using a Threema ID instead of a required phone-number identifier.

Pricing

United States App Store download: $6.99 (USD), checked 2026-10-02. An upfront purchase is required.

Sources & verification

Threema. The Secure Messenger: developer's App Store listing (United States)Primary source

Last verified: 2 October 2026. Features not listed here may be unverified.

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