@heathclose It's hard to get numbers for ad-based games. For IAP just look in the "top grossing" list for iOS games.
Why isn't Thumbspire in the list? http://thumbspire.com/submit
@Christoph Boombit develops their own stuff, but recently they also just published games on iOS
@dusan20002 Thanks so much for sharing. Even I have no use yet, these seems like a great resource for Heyzap integration
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