Best way to check if an iPhone app is running for the first time

Question

I want to check if my iPhone app is running for the first time. I can create a file in the documents folder and check that file to see if this is the first time the app is r

Answer 1

Use NSUserDefaults. If the sharedDefault has a key for your app, its run before. Of course, you'll have to have the app create at least one default entry the first time the app runs.