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Delete apps on your iPhone, iPad, and iPod touch - Apple Support
Assuming that your iPad is not centrally managed by an Educational Establishment or Business (as the device may be remotely managed) - if you are experiencing difficulties with adding, updating or removing Apps from your iPad, you’ll need to check your ScreenTime restrictions:
- Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases > Adding Apps - set to Allow
- Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases > Deleting Apps - set to Allow
- Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases > In-app Purchases - set to Allow
Some Apple Apps cannot be removed as they are integral to iPadOS, but these are limited in number. Where applicable, Apple Apps that can't be deleted can be removed from the Home screen, but remain available from the App Library. Information about using the App Library can be found within the iPad User Guide:
Find and use your apps in App Library on iPad - Apple Support