Are values stored in NSUserDefaults removed when the app that put them there is uninstalled?

If I put a token (a string) into NSUserDefaults, lets say as a paramter passed to a REST API that is used by the app, and the app i开发者_Go百科s uninstalled, will the string remain on the device?

No, it will not. I use NSUserDefaults in the exact same manner, and it will not stay after the app is deleted. You can verify this via Organizer if you need to.

It will however persist through updates. I have been using TestFlightApp for all of my beta testing, and the token (and other saved user default data) remains. Hope this helps.

No. You can see that the data saved is in Library/Preferences/ inside your sandbox. If you are using Simulator, see (something like) ~/Library/Application\ Support/iPhone\ Simulator/4.3.2/Applications/00DB5581-E797-4AB0-9033-321ACD8938BD/Library/Preferences/com.me.MyApp.plist