Inner Four, the developer behind the insanely popular (and inane) iPhone / iPod Touch application Mirror Free (iTunes link) – a gratis tool that turns your device’s screen into a mirror – was using a sample key instead of the key provided by AdWhirl that was supposed to power real display advertising units in the app interface.
Mirror Free
AdWhirl allows you to set percentages for the ad networks you run. On our sample app, we had only a quarter of the inventory dedicated to AdMob, with the remaining 3/4 (maybe even more, b/c of our rollover feature, but I won’t get into all the nitty gritty) of the inventory used to demo how our custom ads work (custom ads don’t pay the developer any money when run, but allow them to cross-promote their other apps or promote a website, for example). Thus 3/4 of the ads weren’t generating money, and the quarter of ads that were generating money exceeded $500/day (and growing even more quickly on the most recent day) – doing the 4X multiplier on revenue generated gets to the $2000/day figure (you’ll notice the early days didn’t generate any revenue – this app rose to #1 VERY quickly).
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