I implemented in app purchase in my iOS app and I want to do a real test (not a sandbox) before submitting this new version to Apple Of course, the current version of the app (in the App Store) was validated with a product So, I archived the app using an Ad Hoc distribution profile and I generated an IPA file for Ad Hoc deployment. But when I installed the app via Testflight on my device, I discovered that the app was in sandbox environment! Is there a way to do a "real" purchase before submitting the app to the App Store ?
You can actually test the in-app purchasing in the sandbox environment, basically you'll need to set up an test user account in your iTunesConnect.
Check the apple documentation here: http://developer.apple.com/library/ios/#technotes/tn2259/_index.html
You'll be able to find all the information related to In-App Purchasing, including sandbox testing.