Like most indie app developers, we would love to offer a simple, no-quibble refund policy for our apps. However, for App Store purchases, only Apple - the receiver of the original payment - can approve and process refunds. Apple do not share customer information, credit card details or App Store transactions with developers.
The following Apple Support article explains how to request a refund:
https://support.apple.com/en-gb/118223
If you are unhappy with one of our apps, we would genuinely be interested to know why - please let us know. All comments are very helpful to us and they allow us to tweak our apps as we continually update them.