Threema

Name: Threema
Author: Threema

Encrypted messaging app from Switzerland

SwitzerlandEFTAEU controlled

Visit website threema.ch

Threema is an instant messaging app from Switzerland with apps for iOS, Android, Windows, macOS and Linux. Communication is end to end encrypted, and the apps are open source, so the encryption can be reviewed by anyone rather than taken on trust.

The company is Swiss, which keeps the service outside US jurisdiction, and the one off purchase price means the app is not funded by advertising. It is a European alternative to the US messengers for people and organisations that want encrypted communication from an inspectable codebase.

Pricing

Threema costs EUR 3.99 as a one off purchase in the App Store and Play Store.

External verification

EU verification badge

eu-alt.eu independently verified this service's European ownership. Choose a badge style and link it back to the dated evidence on this page.

Evidence last checked: 2026-09-04

Horizontal · Blue

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<a href="https://eu-alt.eu/en/product/threema" rel="nofollow"><img src="https://eu-alt.eu/badges/threema/ownership-blue.svg" alt="Threema: EU ownership independently verified by eu-alt.eu" width="360" height="96" loading="lazy"></a>

Horizontal · Black

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<a href="https://eu-alt.eu/en/product/threema" rel="nofollow"><img src="https://eu-alt.eu/badges/threema/ownership-black.svg" alt="Threema: EU ownership independently verified by eu-alt.eu" width="360" height="96" loading="lazy"></a>

Horizontal · White

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<a href="https://eu-alt.eu/en/product/threema" rel="nofollow"><img src="https://eu-alt.eu/badges/threema/ownership-white.svg" alt="Threema: EU ownership independently verified by eu-alt.eu" width="360" height="96" loading="lazy"></a>

Compact · Blue

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<a href="https://eu-alt.eu/en/product/threema" rel="nofollow"><img src="https://eu-alt.eu/badges/threema/ownership-compact-blue.svg" alt="Threema: EU ownership independently verified by eu-alt.eu" width="220" height="132" loading="lazy"></a>

Compact · Black

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<a href="https://eu-alt.eu/en/product/threema" rel="nofollow"><img src="https://eu-alt.eu/badges/threema/ownership-compact-black.svg" alt="Threema: EU ownership independently verified by eu-alt.eu" width="220" height="132" loading="lazy"></a>

Compact · White

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Embed code

<a href="https://eu-alt.eu/en/product/threema" rel="nofollow"><img src="https://eu-alt.eu/badges/threema/ownership-compact-white.svg" alt="Threema: EU ownership independently verified by eu-alt.eu" width="220" height="132" loading="lazy"></a>

Data and operations

Infrastructure and email path

Verified operational dependencies, shown separately from ownership and from the service's core data hosting.

Public website

NINE Nine Internet Solutions AG

Provider control not verified

Observed: A 203.56.112.78 · AS29691
Evidence: Live website DNS ↗RIPE network record ↗

Incoming business email

Threema

European provider

Observed: MX 10 mx.threema.ch · 20 mx1.threema.ch
Evidence: Current daily MX lookup ↗

Authorised outbound email

Direct or undisclosed mail senders

Provider control not verified

Observed: SPF v=spf1 ip4:185.88.236.64/26 ip6:2a02:41b:300a::/48 ip4:212.103.68.0/26 ip6:2a00:c38:1fb::/48 a mx -all
Evidence: Live SPF record ↗

Public DNS records identify visible providers and routes, not every backend location or private data-region setting.

Infrastructure checked: 2026-09-04

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