Where can I buy Threema, and how can I get the latest version?
Staying up to date: If Threema was downloaded from Google Play and automatic updates are enabled (in Google Play Store app > menu > Settings > Auto-update Apps), Threema updates will be installed automatically. If automatic updates are disabled, you can manually install updates in the Google Play Store app (by tapping the menu icon, navigating to My Apps > Threema and then tapping “Update”).
In the Threema Shop, you can purchase Threema for Android anonymously with Bitcoin.
If Threema was downloaded from the Threema Shop, you will receive a notification in the app once an update is available. You can then install the update by confirming the notification. (You can also check for and install updates by navigating to “Settings > About Threema” > “Check for Updates” in the side drawer.)
In order to use the QR Code scanner or to record and send voice messages, you have to install the appropriate plugin (which will require permission to access the camera or the microphone, respectively).
iOS (iPhone, iPad, iPod touch)
Download Threema from the Apple App Store.
Keep Threema up to date by enabling automatic updates (in iOS > Settings > iTunes & App Store > Automatic Downloads > Updates), or update Threema manually in the App Store app (in the Updates tab).
Download Threema from the Windows Phone Store.
Keep Threema up to date by enabling automatic updates (in Windows Phone > Settings > Applications > Store > App Updates), or update Threema manually in the Store app.
To learn more about the current version’s changes and improvements, read the change log.