Tech riderRev. 1 Oct 2026

Threema

Ch 067.6of 43 Encrypted Messaging Apps

1Runs onAndroid, API, iOS, Linux, Mac, self-hosted, Web, Windows
2Costsfree trial · paid from $3/mo
3Encryption coveragedefault
4Linked device limit2 devices
5Desktop appYes
6Voice and video callsYes
7Disappearing messagesYes
8Encrypted backupsend to end

8 lines stated Written from the maker's own pages: threema.com

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Overview

Threema is ranked #6 of 43 in encrypted messaging apps on Specifiction. It runs on Android, API, iOS, Linux, macOS, Self-hosted, Web, Windows. There is no free plan. A free trial is offered. Paid plans start at $3/mo.

Threema plans and pricing

All plans

Core $3/mo Annual payment maximum 200 users · central user management · GDPR-compliant threema.com · 1 Oct 2026

Professional $5/mo Annual payment unlimited employees · Threema Broadcast · automation and API access · premium support threema.com · 1 Oct 2026

Private $6 once private use only · price depends on app store and country threema.com · 1 Oct 2026

OnPrem Not published self-hosted · full infrastructure and data control · white-labeling · premium support threema.com · 1 Oct 2026

Compared on encrypted messaging apps

Free plan: Nothreema.com
Encryption coverage: defaultthreema.com
Linked device limit: 2 devicesthreema.com
Desktop app: Yesthreema.com
Voice and video calls: Yesthreema.com
Disappearing messages: Yesthreema.com
Encrypted backups: end_to_endthreema.com

Facts

Messaging: Threema supports text and voice messages, voice and video calls, group calls, media sharing, file transfers and desktop use.threema.com · 1 Oct 2026
Privacy: Threema can be used without providing a phone number or email address, and contact synchronization is optional.threema.com · 1 Oct 2026
Encryption: Threema provides end-to-end encryption for messages, media, calls, profile pictures, group names and group-member lists.threema.com · 1 Oct 2026
Security audits: Threema says its apps undergo regular audits by recognized security experts, including Cure53 audits in 2020 and 2024.threema.com · 1 Oct 2026
Compliance: Threema states that it is GDPR-compliant, subject to Switzerland’s Federal Act on Data Protection, and not subject to the US CLOUD Act.threema.com · 1 Oct 2026
Infrastructure: Threema operates its own servers in data centers of an ISO 27001-certified colocation partner in Zurich, Switzerland.threema.com · 1 Oct 2026
Open source: The Threema apps are open source, with source repositories for Android, iOS, macOS, Windows, Linux and Threema Web.threema.com · 1 Oct 2026
Desktop requirement: The regular desktop app and web client require a mobile device with Threema installed and activated.threema.com · 1 Oct 2026
Integrations: Threema Gateway lets companies integrate Threema into existing software to send, receive and process messages.threema.com · 1 Oct 2026
Business APIs: Threema Work provides Work API, Broadcast API and an Entra ID connector for directory synchronization, administration and user management.threema.com · 1 Oct 2026
Broadcast: Threema Broadcast provides feeds, distribution lists, bots and centrally managed group chats, and is included in the Professional plan.threema.com · 1 Oct 2026
Self-hosting limit: Threema OnPrem users can communicate only with users of the same OnPrem instance.threema.com · 1 Oct 2026
Support: Threema provides support forms for the private app and management-cockpit support for Threema Work, plus dedicated Gateway and Broadcast support addresses.threema.com · 1 Oct 2026