Nothing happens when I tap on the “Upgrade” banner.
How do I do the in-app purchase?
If your “Upgrade” banner doesn’t function properly, one possible reason is that you may have your [In-App Purchase] option disabled on the iPad.
To enable [In-App Purchase] option, please try the following steps on the iPad:
Go to [Settings] -> [General] -> [Restrictions] -> Enable Restrictions (skip this if already enabled) -> Under “Allowed Content”, please turn [In-App Purchase] on.
Now, you can try to tap the banner again to see the difference!