Threema is an instant messaging app from Switzerland with Apps for iOS, Android, Windows, macOS and Linux. The communication is end-to-end encrypted and the apps are open source.
The app can be downloaded here:


Threema costs 3.99€ in the App Store and Play Store.


Domain name Usage type Lookup type Hosting provider Representation Web
  • Nine Internet Solutions AG (AS29691)
Other products in category Instant messaging apps
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France EU Free plan

Olvid is a messaging service from France which is useable without a phone number and accessible under Android and iOS (which allows running it on a tablet without a SIM-Card). It provides an end-to-end encryption which includes metadata and thereby can assure anonymity of its users.

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