essential anatomy App [Android]

it's easy to get apps for free on android
look for a random app backup tool in playstore
buy the app
go to backup tool and backup the app
once you done that then go to paid app in playstore tap refund
then go back to backup tool and reinstall it
and now you have it for FREEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE


edit
didn't see the link and it was only ios sorry