An interesting property of this approach: The app creator _will_ know if "wouldn't have bought it anyway" is true. The result may be a shock for some, but at l

An interesting property of this approach: The app creator _will_ know if "wouldn't have bought it anyway" is true. The result may be a shock for some, but at least they have no more illusions ("So many people love my app but pirate it. If they couldn't pirate it they would buy it!") and can get back to work.