This guide explains why there might be an error during the download, installation, or use of the mobile app SwissTransfer (app for iOS/Android smartphone or tablet).

Device considered as not secure?

When you use the mobile app SwissTransfer, you might see the message “Your device has been detected as insecure”. This message means that the app cannot guarantee that your device is reliable or meets security requirements.

Indeed, SwissTransfer does not require account creation to function. It relies on integrity mechanisms to ensure that the application is used on a genuine, unmodified device in a secure environment. This system is essential to prevent abuse, fraud, or malicious automation.

On Android, these checks are performed through the "Play Integrity" API provided by Google. If this API returns a result indicating that the device or environment is not reliable, or if it is not available, the device is automatically considered insecure.

Why?

This can happen if the phone is rooted, modified (custom ROM, tools like Magisk), if Google Play services are not installed, are outdated, or if the Play Store is missing or outdated. A device without an active Google account can also cause issues. Network errors or an inability to contact Google's servers can also prevent the verification from taking place.

On iOS, equivalent mechanisms allow detecting jailbroken or modified environments, as well as integrity issues related to the Apple system. Again, if the device does not meet the authenticity criteria, the application may not work fully.

What to do?

This does not prevent you from using **SwissTransfer**: all functionalities related to **receiving and opening transfers** remain accessible. Only the creation of a new transfer is blocked if the device does not pass the integrity check.

If you encounter this issue:

• Check that your phone has not been modified, that all system components are up to date, that you are connected to the Internet and that your device has the required official services (Google Play Services for Android, up-to-date Apple system for iOS).

If necessary, you can always use SwissTransfer from a mobile browser or a computer via the website https://www.swisstransfer.com.