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NSUserDefautls object automatically loads and saves small information. Along with primitive value like BOOL, integer or float, NSUserDefaults can handle objects like NSArray, NSData, NSDictionary, NSString. // Save a default [[NSUserDefaults standardUserDefaults] setObject:@”NO” forKey:@”ShowWarning”]; // Read BOOL warning value from NSUserDefaults BOOL showWarning = [[NSUserDefaults standardUserDefaults] boolForKey:@”ShowWarning”];