Does NSUserDefaults reset when user updates

Question

Possible Duplicate:
Do NSUserDefaults persist through an Update to an app in the Appstore?

This is just something I am scared about. I know when you delete the app, the data in NSUserDefaults are wiped out. Does this happen when the user updates? In this case should I backup the defaults data to another server/system.

Thanks guys, just trying to take precaution.

score 6 · Accepted Answer · answered Jun 16 '12 at 08:47

No.

You could test it with an app you have on your device already that needs updating.

Make sure you've done something in an app you can witness, update it, turn off internet to make sure it's not getting information from a server and check if the data disappeared.

This could be level progress through a game for example.

score 3 · Answer 2 · edited Feb 23 '13 at 11:06

3

No, values are kept from before.

You can lose user defaults if user doesn't backup data with iTunes and deletes app from the device.

edited Feb 23 '13 at 11:06

John Topley

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answered Jun 16 '12 at 08:45

Rok Jarc

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Ok thanks, I can accept in 10 minutes – MCKapur Jun 16 '12 at 08:46

Does NSUserDefaults reset when user updates

2 Answers2