We have a very simple privacy policy:
We do not what so ever store or collect any information about you, your images, your friends or any of your Facebook activity.

The Drop N Sync team always trying to improve Drop N Sync and so Drop N Sync will send error reports automatically to the Drop N Sync servers.
The error logs will not hold any personal inforamtion and will not be used in any way other then to improve Drop N Sync.