Threema Work. For Companies
Secure Business Messenger
Free
Threema Work is the highly secure, user-friendly, and GDPR-compliant communication solution for businesses. Whether team chats, voice or video calls, or files: all content is end-to-end encrypted so that your communication remains protected at all times.
Advantages of Threema Work:
• Text and voice messages as well as group chats for efficient team collaboration
• Screen sharing on desktop
• Editing sent messages and deleting them for chat partners
• Secure voice, video, and group calls
• Sharing files in all formats (PDF, GIF, MP3, ZIP, and more)
• Creating groups and polls
• Sending pictures, videos, and locations
• Practical off-hours policy
• Cross-platform use thanks to mobile app, desktop app, and web client
• Additional protection of confidential chats with PIN or fingerprint
Reliable security:
• Use without a phone number or email address possible
• Servers in Switzerland
• Management of groups, broadcasts, and contacts by the administrator
• Preconfiguration and app policies for employees
• Easy integration into all common MDM/EMM systems
• Regular audits by independent security experts
NOTE FOR PRIVATE USERS: Threema Work is designed for companies. As a private individual, please use Threema Private.
Enjoy using Threema Work!
more Doesn’t give you ability to become admin but requires a username and password given by an admin.
Developer Response To become an administrator you have to first register at work.threema.ch.
Doesn’t give you ability to become admin but requires a username and password given by an admin.
To become an administrator you have to first register at work.threema.ch.
It asks for a username and password when the application starts with and direct you to an administrator if you have issues. Sadly, it doesn’t tell you where or how to contact said administrator. No way to sign and no way to use the app.
Developer Response Threema Work is intended for corporate users with a valid contract that get their credentials from their employer. If you want to use Threema as a private user, please download the regular version: https://threema.ch/en/downloadIf you want to register for Threema Work, you can do this here: https://work.threema.ch/en/register
It asks for a username and password when the application starts with and direct you to an administrator if you have issues. Sadly, it doesn’t tell you where or how to contact said administrator. No way to sign and no way to use the app.
Threema Work is intended for corporate users with a valid contract that get their credentials from their employer. If you want to use Threema as a private user, please download the regular version: https://threema.ch/en/downloadIf you want to register for Threema Work, you can do this here: https://work.threema.ch/en/register
• Improvements in relation to availability status
• Fixed an issue that caused only a black screen to be displayed in certain cases
Threema Work 7.2.4k
• New: In the app’s Profile tab, you can set an availability status that will be displayed to other users in the company directly in the chat and in the chat overview
• Fixed a bug that could occur when opening chats
• Fixed a bug that could occur when connecting to the server
• Fixed a bug that occurred when deleting or editing sent messages
• Various improvements related to VoiceOver and voice messages
Threema Work 7.2.3k
• Fixed a bug related to restoring a Threema Safe backup with an own server
Threema Work 7.2.1k
• Fixed several bugs related to the Liquid Glass design
• Fixed several bugs related to individual and group calls
• Fixed several bugs related to forwarding messages
• Various performance optimizations
• General improvements and various bug fixes
7.2.5 5d ago
• New: In the app’s Profile tab, you can set an availability status that will be displayed to other users in the company directly in the chat and in the chat overview
• Fixed a bug that could occur when opening chats
• Fixed a bug that could occur when connecting to the server
• Fixed a bug that occurred when deleting or editing sent messages
• Various improvements related to VoiceOver and voice messages
Threema Work 7.2.3k
• Fixed a bug related to restoring a Threema Safe backup with an own server
Threema Work 7.2.1k
• Fixed several bugs related to the Liquid Glass design
• Fixed several bugs related to individual and group calls
• Fixed several bugs related to forwarding messages
• Various performance optimizations
• General improvements and various bug fixes
7.2.4 Jun 15
• Fixed a bug related to restoring a Threema Safe backup with an own server
Threema Work 7.2.1
• Fixed several bugs related to the Liquid Glass design
• Fixed several bugs related to individual and group calls
• Fixed several bugs related to forwarding messages
• Various performance optimizations
• General improvements and various bug fixes
7.2.3 Jun 1
• Fixed several bugs related to the Liquid Glass design
• Fixed several bugs related to individual and group calls
• Fixed several bugs related to forwarding messages
• Various performance optimizations
• General improvements and various bug fixes
7.2.1 May 26
• New: This update includes the first adjustments to the new Liquid Glass design
• New: The navigation logic has been completely overhauled while simultaneously improving the design of the iPad app
• New: All Chats export
• Redesign of interfaces for a more modern appearance:
• Contacts-Tab
• Threema Safe
• Message forwarding
• New: Forwarding media now includes captions
• Added new emojis for emoji reactions (requires iOS 26.4)
• Fixed various bugs related to Threema calls
• Fixed various bugs related to Threema Safe
• Various bug fixes and general improvements
7.1.1 Apr 27
• Fixed various bugs that could occur when connecting to Threema Web
Threema Work 7.0.6k
• Various bug fixes and general improvements
Threema Work 7.0.5k
• Various improvements related to restoring a Threema Safe backup
• Various bug fixes and general improvements
Threema Work 7.0.4k
• New: screenshots can be disabled via app configuration in the management cockpit’s app configuration
• Fixed a bug that caused messages to be sent late when switching networks
• Fixed various bugs related to restoring a Threema Safe backup
• Various bug fixes and general improvements
Threema Work 7.0.3k
• Fixed a crash that could occur during a backup restore when the Threema Safe URL was preset via MDM
Threema Work 7.0.2k
• Various bug fixes
Threema Work 7.0.1k
• This version supports iOS 17 and newer
• A more modern look with redesigned screens for
• Adding contacts
• Creating groups
• Starting a new chat
• Creating and viewing polls
• Previewing file messages and full-screen images
• Selecting a document or contact
• Scanning QR codes
• Editing your profile
• Linking a phone number or email address
• Setting a revocation password
• ID export
• More reliable Threema Calls
• Various under-the-hood changes
• Various bug fixes and general improvements
7.0.7 Apr 9
• Various bug fixes and general improvements
Threema Work 7.0.5k
• Various improvements related to restoring a Threema Safe backup
• Various bug fixes and general improvements
Threema Work 7.0.4k
• New: screenshots can be disabled via app configuration in the management cockpit’s app configuration
• Fixed a bug that caused messages to be sent late when switching networks
• Fixed various bugs related to restoring a Threema Safe backup
• Various bug fixes and general improvements
Threema Work 7.0.3k
• Fixed a crash that could occur during a backup restore when the Threema Safe URL was preset via MDM
Threema Work 7.0.2k
• Various bug fixes
Threema Work 7.0.1k
• This version supports iOS 17 and newer
• A more modern look with redesigned screens for
• Adding contacts
• Creating groups
• Starting a new chat
• Creating and viewing polls
• Previewing file messages and full-screen images
• Selecting a document or contact
• Scanning QR codes
• Editing your profile
• Linking a phone number or email address
• Setting a revocation password
• ID export
• More reliable Threema Calls
• Various under-the-hood changes
• Various bug fixes and general improvements
7.0.6 Mar 30
• Various improvements related to restoring a Threema Safe backup
• Various bug fixes and general improvements
Threema Work 7.0.4k
• New: screenshots can be disabled via app configuration in the management cockpit’s app configuration
• Fixed a bug that caused messages to be sent late when switching networks
• Fixed various bugs related to restoring a Threema Safe backup
• Various bug fixes and general improvements
Threema Work 7.0.3k
• Fixed a crash that could occur during a backup restore when the Threema Safe URL was preset via MDM
Threema Work 7.0.2k
• Various bug fixes
Threema Work 7.0.1k
• This version supports iOS 17 and newer
• A more modern look with redesigned screens for
• Adding contacts
• Creating groups
• Starting a new chat
• Creating and viewing polls
• Previewing file messages and full-screen images
• Selecting a document or contact
• Scanning QR codes
• Editing your profile
• Linking a phone number or email address
• Setting a revocation password
• ID export
• More reliable Threema Calls
• Various under-the-hood changes
• Various bug fixes and general improvements
7.0.5 Mar 23
• New: screenshots can be disabled via app configuration in the management cockpit’s app configuration
• Fixed a bug that caused messages to be sent late when switching networks
• Fixed various bugs related to restoring a Threema Safe backup
• Various bug fixes and general improvements
Threema Work 7.0.3k
• Fixed a crash that could occur during a backup restore when the Threema Safe URL was preset via MDM
Threema Work 7.0.2k
• Various bug fixes
Threema Work 7.0.1k
• This version supports iOS 17 and newer
• A more modern look with redesigned screens for
• Adding contacts
• Creating groups
• Starting a new chat
• Creating and viewing polls
• Previewing file messages and full-screen images
• Selecting a document or contact
• Scanning QR codes
• Editing your profile
• Linking a phone number or email address
• Setting a revocation password
• ID export
• More reliable Threema Calls
• Various under-the-hood changes
• Various bug fixes and general improvements
7.0.4 Mar 16
• Fixed a bug that prevented logging in with a new username or password
• Fix crash during backup restore when Threema Safe URL was preset via MDM
Threema OnPrem 7.0.2o
• Fixed a bug that prevented logging in with passwords containing special characters
• Various bug fixes
Threema OnPrem 7.0.1o
• This version supports iOS 17 and newer
• A more modern look with redesigned screens for
• Adding contacts
• Creating groups
• Starting a new chat
• Creating and viewing polls
• Previewing file messages and full-screen images
• Selecting a document or contact
• Scanning QR codes
• Editing your profile
• Linking a phone number or email address
• Setting a revocation password
• ID export
• More reliable Threema Calls
• Various under-the-hood changes
• Various bug fixes and general improvements
7.0.3 Mar 6
• Various bug fixes
Threema Work 7.0.1k
• This version supports iOS 17 and newer
• A more modern look with redesigned screens for
• Adding contacts
• Creating groups
• Starting a new chat
• Creating and viewing polls
• Previewing file messages and full-screen images
• Selecting a document or contact
• Scanning QR codes
• Editing your profile
• Linking a phone number or email address
• Setting a revocation password
• ID export
• More reliable Threema Calls
• Various under-the-hood changes
• Various bug fixes and general improvements
7.0.2 Mar 4
• This version supports iOS 17 and newer
• A more modern look with redesigned screens for
• Adding contacts
• Creating groups
• Starting a new chat
• Creating and viewing polls
• Previewing file messages and full-screen images
• Selecting a document or contact
• Scanning QR codes
• Editing your profile
• Linking a phone number or email address
• Setting a revocation password
• ID export
• More reliable Threema Calls
• Various under-the-hood changes
• Various bug fixes and general improvements
7.0.1 Mar 2
Threema Work 6.8.8k
• Various bug fixes and general improvements
• Starting with the upcoming major app version, iOS 15 and 16 will no longer be supported
6.8.8 12/09/2025
Threema Work 6.8.7k
• Various bug fixes and general improvements
6.8.7 10/29/2025
Threema Work 6.8.6k
• Fixed an issue in relation to sharing screenshots
• Fixed an issue in relation to device linking
• Fixed an issue in relation to storage management
• Various bug fixes and general improvements
6.8.6 10/07/2025
Threema Work 6.8.5k
• Improvements in relation to group calls
6.8.5 09/10/2025
Threema Work 6.8.4k
• Adjusted the color scheme in the app to improve the readability of texts
• Fixed a bug in relation to stickers
• Various bug fixes and improvements
6.8.4 08/27/2025
Threema Work 6.8.3k
• Fixed a bug in relation to voice messages
• Added “Alarm” as a custom call sound
• Various bug fixes and performance improvements
Threema Work 6.8.2k
• Updated the logo and color scheme to reflect the new corporate design
Threema Work 6.8.1k
• This update requires iOS 15.8 or above
• Added Bulgarian localization
• Fixed a bug in relation to linked contacts
• Various improvements and bug fixes in relation to notifications, voice messages, individual calls, and group calls
• General performance optimization
6.8.3 07/22/2025
Threema Work 6.8.2k
• Updated the logo and color scheme to reflect the new corporate design
Threema Work 6.8.1k
• This update requires iOS 15.8 or above
• Added Bulgarian localization
• Fixed a bug in relation to linked contacts
• Various improvements and bug fixes in relation to notifications, voice messages, individual calls, and group calls
• General performance optimization
6.8.2 06/30/2025
Threema Work 6.8.1k
• This update requires iOS 15.8 or above
• Added Bulgarian localization
• Fixed a bug in relation to linked contacts
• Various improvements and bug fixes in relation to notifications, voice messages, individual calls, and group calls
• General performance optimization
6.8.1 06/16/2025
Threema Work 6.7.1k
• Improved connection to the server
• Fixed a bug in relation to recording and sending video messages
• Fixed a bug in relation to processing incoming messages from an unknown sender
• Improved file synchronization between the mobile app and Threema for desktop
• General performance optimization
6.7.1 04/07/2025
• New: You can now react to messages with emoji
• Various other improvements and bug fixes
Threema Work 6.6
• Overhauled appearance of the agree/disagree icons (in preparation for the upcoming emoji reactions feature)
• Various other improvements and bug fixes
6.6.2 02/24/2025
• Overhauled appearance of the agree/disagree icons (in preparation for the upcoming emoji reactions feature)
• Various other improvements and bug fixes
6.6 01/27/2025
• Various improvements to the storage management
• Fixed a bug where messages could not be forwarded to some contacts
• Various other improvements and bug fixes
Threema Work 6.5
• Added Blocked Contacts list
• Text formatting is now shown in the edit history
• Removed Romansh language
• Fixed a bug where deleted messages could still be quoted
• Various other improvements and bug fixes
6.5.1 01/07/2025
• Added Blocked Contacts list
• Text formatting is now shown in the edit history
• Removed Romansh language
• Fixed a bug where deleted messages could still be quoted
• Various other improvements and bug fixes
6.5 12/09/2024
• Improvements in relation to availability status
• Fixed an issue that caused only a black screen to be displayed in certain cases
Threema Work 7.2.4k
• New: In the app’s Profile tab, you can set an availability status that will be displayed to other users in the company directly in the chat and in the chat overview
• Fixed a bug that could occur when opening chats
• Fixed a bug that could occur when connecting to the server
• Fixed a bug that occurred when deleting or editing sent messages
• Various improvements related to VoiceOver and voice messages
Threema Work 7.2.3k
• Fixed a bug related to restoring a Threema Safe backup with an own server
Threema Work 7.2.1k
• Fixed several bugs related to the Liquid Glass design
• Fixed several bugs related to individual and group calls
• Fixed several bugs related to forwarding messages
• Various performance optimizations
• General improvements and various bug fixes
more Version 7.2.5 5d ago
Data Linked to You The following data may be collected and linked to your identity:
Data Not Linked to You The following data may be collected but it is not linked to your identity:
Supported Features
VoiceOver
Voice Control
Larger Text
Dark Interface
Sufficient Contrast
Reduced Motion
Audio Descriptions 
