saving current date and time in my iPhone application?

Question

In my application i am using In - App purchases to provide a subscription of 1 year….now i need to save the time and date when the user buys the subscription an

Answer 1

You can simply store it in NSUserDefaults:

[[NSUserDefaults standardUserDefaults] setObject:[NSDate now] forKey:@"purchaseDate"];

Then retrieve it like such:

NSDate *purchaseDate = [[NSUserDefaults standardUserDefaults] objectForKey:@"purchaseDate"];

And when you're done with it:

[[NSUserDefaults standardUserDefaults] removeObjectForKey:@"purchaseDate"];