Is it possible to fool app on Jailbroken iPhone and make fake inapp purchases
Question
We're launching an app that is selling the service through inapp purchases. Currently we asessing a risk of Jailbroken devices.
Is it possible that a user with a jailbroken iphone simulates an inapp purchase without paying for it?
Solution
yes, it is possible that some app can simulates an inapp purchase without paying for it.
To prevent this, you should check the IAP transaction and receipt from app store. You can reference Verifying Store Receipts from the Apple In-App Purchase Programming Guide.
OTHER TIPS
it is possible and there are system tweaks for jailbroken ios devices that do exactly what you're talking about, take a look here: http://www.youtube.com/watch?v=u3cmwwjISAo
this is of course pretty illegal i believe.