Any default app that has been removed can be reinstalled at any time, so if you decide it was a mistake to delete a specific app it’s easy to get back again. You’ll find that deleting a default app is basically the same as uninstalling other apps on the iPhone and iPad, except that up until now you could not delete the default apps, they were simply not removable.
1. Locate the default app you want to delete from the iPhone or iPad
2. Tap and hold on the app icon to cause them to jiggle and make the (X) delete button appear, tap on that (X) to delete the default app
3. Confirm that you want to delete the app by choosing “Remove”
4. Repeat with other default apps you want to delete in iOS
Deleted default apps will disappear from the devices Home Screen and remain inaccessible to the device unless they are reinstalled again.
In the example here we deleted the bundled default “Music” app from iOS on an iPhone.
The ability to delete default apps is really quite handy and it lets you cut down on some of the cruft that comes along with iOS which may go unused by some users. This feature to ditch stock apps though is only available in the most modern versions of iOS, so if your iPhone or iPad is running an older version of iOS system software you would need to update it to iOS 10 (or later if you) and try again to gain access to the deleting default apps ability.
Note that some default apps can not be removed from iOS. Some of the undeletable apps include Settings, Messages, Phone, Safari, Clock, Photos, Health, App Store, and Camera. If you don’t want those apps, you’ll need to hide them in a folder or on another home screen.
Even after a stock app has been deleted from the iPhone or iPad, they can be reinstalled again at anytime by going through the App Store, searching for the app in question, and choosing to re-download it again.