The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
The app did not exactly work right from the start. When you click on the app to review the download information it immediately loaded a page then disappeared. Then it reappears for 1 sec and was gone again. So I have no information when a backup happened, will happen or history. Its really hard to tell at the start if this thing works or not. How do I re-install the backup if something happens? It really miss its basic function