I'm not sure about the numbers, but I think the 90% pirated and 10% sold applies to pretty much any form of media. I think the only solution against piracy in g

I'm not sure about the numbers, but I think the 90% pirated and 10% sold applies to pretty much any form of media. I think the only solution against piracy in games might be online multiplayer games. If you could distribute serial numbers via the appstore and then verify them on your own servers, you might be able to reduce piracy.