I have not been able to update the Simpsons tapped out game.
i tap it multiple times but no luck at all it sometimes seems like it is working but stops at installing and that’s it.
How much free space do you have?
You need up to 5GB free space, depending on device
If you do not have the space, it can not install
refresh your update page
go to the Tapped out app in your apps section, to update manually