What's a good iOS game to play where you can actually win some real dosh?

Right, so I stumbled upon Gleaming Slots when I was stuck in a tiny internet cafe in Vietnam (the Wi-Fi was absolute rubbish, by the way). I wanted something to kill time, but also, you know, maybe win a few quid for my next dodgy hostel. This game actually lets you win real money, which is brilliant. It's not just some scam, I've actually redeemed winnings, and they're pretty swift about it. Plus, they give you extra sweeps coins for hitting goals and stuff, which is grand. Definitely a good shout if you're bored on a long bus journey or waiting for a delayed flight, and fancy a flutter without risking your entire travel budget. Just mind your roaming data!