Hello once you download this app fighter by Google you never think to delete this app because it can delete unnecessary data of phone this is a good anti-virus satisfied by Google I like this app and the most thing in this app it does not hang in any condition when the phone storage is full or not full once you download and open this App you don’t think and you never delete this app you can like this app I think so I downloaded this app from Play Store and I never delete this app because it can delete unnecessary data for your phone like virus