The discount voucher T&C's don't say anything about not being able to be used to purchase iPad based apps, but there doesn't appear to be any way to use the voucher to do so. I already own the Desktop version of Affinity Photo, what I want to do is purchase the iPad version now, but there doesn't appear to be any way to use the voucher I received from taking the survey to purchase Affinity Photo for iPad. I tried putting the code I received into the Redeem area in the App Store but it doesn't recognize it as valid. Is there any way to use the voucher to buy any of the Affinity products for the iPad?