Q: Deleting an App

Hello Anita,

I apologize, I'm a bit unclear on what exactly you mean by "delete an app forever" in this context. If you would just generally like for the app to not be presented, you may want to try deleting the app and hiding the previous purchase, as outlined in the following articles:

How to delete content you've downloaded from the iTunes Store, App Store, iBooks Store, or Mac App Store - Apple Support

iTunes Store: Hiding and unhiding purchases - Apple Support

Beyond that, you may be looking at something more along the lines of setting Restrictions on the device, as noted below:

About Restrictions (parental controls) on iPhone, iPad, and iPod touch - Apple Support

Sincerely,

- Brenden