Version 1.0.4
This statement has been modified on April 27, 2024.

Windows SyncFolder app

The Windows SyncFolder app doesn't collect and doesn't use any personal information, except to cover use cases where the user must configure source or destination locations that require user credentials (account, password, key, ..) for access.

Examples of such locations are: OneDrive, FTP and SFTP servers, and NAS devices for which the user must explicitly configure credentials.
The SyncFolder app then collects and transmits personally identifiable information, such as the user’s email and password, for authentication purposes, as described in the app documentation. This information will be transmitted to the provider of the storage service. For the avoidance of doubt, SyncFolder does not use this information for any other purpose.
All credentials are saved in a encrypted area on the computer and shortly retrieved from there at the moment a connection is made to the storage service.

Users can also configure the Windows SyncFolder app to generate log data for troubleshooting purposes. This is off by default. It can be turned on by going to the Settings page and moving the toggle switch under the "Log files" section to the on position. The app places troubleshooting data (excluding passwords) in log files with the purpose to track down possible faults that might occur inside the app.
The log files remain on your device until you manually transmit the data.

Android and iOS SyncFolder Photos app

The Android and iOS SyncFolder Photos app does not collect and use personal information with the exception of photos and videos. The latter must be explicitly selected by the user and then offered for uploading to a trusted computer on the same network. Communication between the device running the app and the computer is secured by encrypted tokens. The app has no access to other devices/servers except the trusted computer.

The app stores troubleshooting data (excluding accounts and passwords) in a readable log file with the purpose to track down possible faults that might occur inside the app.
The log file remains on your device (in the Download folder) but you can choose to share it with other people, e.g. the developer of the app.

So simple :)