Just How Much Money Can Free iPhone Apps Make? Quite A Bit

The AdWhirl report, embedded below, says that applications that crack the top 100 in the Free Apps list make $400-$5000 a day – a wide range to be sure, but even at the low end that works out to around $12,000 a month. Among these top apps, AdWhirl is reporting an impressive $1.90 eCPM and 2.6% CTR. And while applications that do reach the peak position in the App Store eventually lose steam, revenue tends to remain consistent over time after the initial dip (see the graph below). Of course, making it to the top of the Free Apps list is easier said than done, and most developers make far less than $400 a day. But the same is true of the vast majority of paid applications too – in fact, there’s actually less competition on the Free side of the store.
(Link: Just How Much Money Can Free iPhone Apps Make? Quite A Bit)