How do I upgrade from an Apple App Store Purchase?

Unfortunately Apple does not provide any way for us to offer upgrade pricing within the App Store itself.

However if you wish to upgrade from a purchase made via the Apple App Store, please email us your App Store receipt email to, showing your purchase and we will send you upgrade instructions.  We will also accept a screenshot of your Mac App Store 'Purchased' page, showing iRehearse in your list of purchased apps.