Making enough storage space to download app
How to make storage space to download app
iPad Air 2, iPadOS 15
Re: "iPad Air 2: How to make storage space to download app"
See: "Manage space on your iPhone, iPad, or iPod touch” in Apple Support's online article (link below)
If you need more space for an update on your iPhone, iPad, or iPod touch - Apple Support
and
if needed: How to check the storage on your iPhone and iPad - Apple Support