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iPhone game keep progress after app update

First a technical question. When someone updates a iPhone app, does it replace the whole application file. Or just the part of the app that have changed since the last version?

Second, how can store certain variables so i can save game progress after someone updates my unity iPhone game to a newer version?

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asked Aug 10 '10 at 01:10 AM

Mattivc gravatar image

Mattivc
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It replaces the whole app. Use PlayerPrefs to save game progress (prefs are not wiped with updates).

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answered Aug 10 '10 at 01:11 AM

Eric5h5 gravatar image

Eric5h5
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asked: Aug 10 '10 at 01:10 AM

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Last Updated: Aug 10 '10 at 01:10 AM