This might happen if you have a hanging App Store transaction. So if you tried to redeem your purchases or buy an in app purchase and quit the app before the transaction completes. The transaction will then try to continue when you start the app the next time. But if you don't supply your login it should work just fine.
But this is the only case that I can imagine. If there are no hanging in app purchase transactions, Stage Traxx will not try to connect to the App Store.