Will items in iOS keychain survive app uninstall and reinstall?

Question

I am looking for documentation about the iOS keychain items. My specific question is if keychain items will survive an app uninstall and reinstall cycle. It seems to work th

Answer 1

yes they will.

see a correspondinng question of mine:

How to find out WHEN a user bought the app / installed it for the first time (possible without UDID?)

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AS I SEE IT:

'Officially' it is implied by the fact that the keychain is for multiple apps.. and that it 'belongs' to the os:

Apple Documentation

A keychain is an encrypted container that holds passwords for multiple applications and secure services.

=> ergo the keychain survives the app

PLUS

a keychain item can be shared between multiple apps