Use on tablets or devices without a SIM card

A phone number is not required to use Threema Work. Threema Work can be used on devices without (or with multiple) SIM cards. You can even make Threema calls without a SIM card.

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Threema Work is available for Android and iOS and can also be used on tablets.

With the desktop app and the web client, Threema can also be used on desktop computers.

Threema Work provides all the features you expect from a state-of-the-art instant messenger for organizations

Basic app features

Special features

The Threema Work app is based on Threema’s consumer app and offers similar features. You can find out more about features and answers to general questions about the app in the Threema FAQs.

With the desktop app and the web client, you can conveniently chat from your computer without compromising security. You have full access to all chats, contacts, and media files.

The desktop app and the web client are available for both the Android and the iOS version of the Threema Work app.

Please note that a mobile device (on which the Threema Work app is present and activated using credentials) is required.

Just like messages, Threema Work’s voice and video calls are end-to-end encrypted and thus tap-proof.

Neither a SIM card nor a phone number is required. This allows you to make voice and video calls on tablets and iPads.

Required app version for voice calls:

  • Android: Threema Work 3.21k or above
  • iOS: Threema Work 3.0.1k or above

Required app version for video calls:

  • Android: Threema Work 4.41k or above
  • iOS: Threema Work 4.6.1k or above

Threema calls can be completely disabled, and you can alsodisable video calls without disabling voice calls.

Please find additional information here.

With the “off-hours policy,” Threema Work users only receive notifications during specified periods of time.

In the app, navigate to “Settings > Sound & Notifications > Do not disturb” (Android) or “Settings > Notifications > Off-Hours Policy” (iOS), and define your working hours. If the off-hours policy is enabled, no notifications for incoming text or voice messages will be displayed, and calls are automatically rejected.

Threema Broadcast is the tool for versatile, secure, and straightforward top-down communications.

  • Use feeds and distribution lists to send messages to any number of recipients, and turn Threema into a powerful newsletter channel. While users can subscribe to and unsubscribe from feeds, you manage the recipients of distribution lists yourself.
  • With bots, you can create interactive information-retrieval systems that allow your users to quickly get the answers they are looking for.
  • Manage central group chats together with any number of co-administrators, and participate in the group discussion right from your PC.

Threema Broadcast is included in the Professional price plan. The number of Broadcast recipients corresponds to the number of Professional licenses. For Example: If you have 80 Professional licenses, there are 80 Threema Broadcast recipients available.

Video-Tutorial

Threema Broadcast: Setup, Distribution Lists, and Feeds
Get familiar with feeds and distribution lists, and learn know how to set up Threema Broadcast.
All video tutorials

With Threema Gateway, Threema can be integrated into existing software applications. This allows companies and organizations to send, receive, and process Threema messages using their own software. Threema Gateway can be used for various purposes – the possibilities are virtually endless. Here are some real-world examples:

  • Userlike enables companies to communicate with customers and employees using various channels, including Threema.
  • Corona Radar, a service by Whappodo, allows Threema users to retrieve regional Corona stats right in the Threema app.
  • IncaMail, Swiss Post’s secure email service, uses Threema Gateway to forward encrypted emails. For example, payslips can be received not only as secure email but also as Threema message.
  • With a plugin, Threema can be used for two-factor authentication in the forum software xenForo.
  • Whappodo, which also supports Threema, is a solution for customer care and broadcasting via instant messenger.

Besides the above-mentioned xenForo plugin, there are many other Open Source projects that use Threema Gateway, e.g., Grafana and Mattermost.

To learn more, please visit the Threema Gateway website.

Show all FAQs

Show all FAQs