How can a iOS user remove keychain after uninstalling app

Question

I Know that the keychain will be maintained even after an app is uninstalled.

However, is there a way to remove the keychain for users? Like, restore the whole phone.

Thank you in advance!

Answer 1

You have no callback or method of removing the keychain items on deletion of your app, so there's no individual way to remove a single keychain item.

If you restored the entire phone to factory defaults Settings -> General -> Reset -> Erase All Contents and Settings, then it would be removed (along with everything on the phone!)