Thank you for this amazing tutorial but I have question about how we can upload this app to store through only one application that can be started as free then if the user need more questions redirect it to the paid version , by another way what is the scenario for app store side in this case?
In case you are interested in updating this tutorial to the latest, here are a few good links:
This tutorial is more than six months old so questions are no longer supported at the moment for it. We will update it as soon as possible. Thank you! :]