Deleting photos after auto backup?

Whenever I use the Stick’s photos auto backup feature for photos on my iOS device (iPad) I get the option to delete the photos off the iPad when auto backup has completed.  However this option is not available whenever I autoback up photos from my Android device,  I simply get the option to auto back up the photos to the Stick and if I want to I have to manually delete them off my Android device.

Is this deletion option only available for iOS devices?

Thanks

yes it is only available in iOS.