@Emmert If it's a fake, it's a very good one. That matches the app that I personally, intentionally installed on my own iPhone.
@paulvb What Bundle ID are you utilizing to try and prevent access? Looks like it's com.apple.store.Jolly That's working for me on a supervised device. If that's NOT working, then A) make sure the device is supervised as that's required, B) then I'd revert to Emmert's suggestion and check the inventory record or manage storage to see what the app actually is.