The steps to delete apps on an iPhone. Ensure that the delete restriction is off before trying.
1. Select Settings
2. Select ScreenTime
3. Select Content And Privacy Restrictions
4.Select ITunes and App Store Purchases
5.Ensure Deleting Apps is Allowed.
6. Hold your finger over the app you want to delete and select Edit Home Screen
7. When the Minus sign appears on the shaking app symbol, touch It and select Delete App.