On iOS 12, Boxcryptor is listed on the Battery page in Settings as being continuously open in the background. For instance, between 5am and 6am Boxcryptor is listed as using a full 1 hour of background activity; for the last 24 hours, Boxcryptor has 11 hours, 29 minutes of background activity.
The app was not open and should not be active in the background — “Background App Refresh” for the app is turned off.
