Via MobilityDigest we hear that Krashlander Free has managed to collect more than 1 million ad impressions since its launch on the 23 February 2011.
The app currently holds the 14th rank for all games and 29th for all apps.
Of interest is even at that rate, the paid app is more profitable than the free app.
Krashlander costs $1.29 in its paid version, and has been downloaded 18,500 times. The developer, Jeff Weber, has previously said his conversion rate is 28%, resulting in revenue of around $6700 over 4.5 months or around $1500 per month. Of course 30% of this goes to Microsoft, with a take home pay of around $1000.
With around 3 million ad impressions per month at an eCPM of 0.29, Jeff will be making around $900, which is pretty close, but I expect that the free app will likely deeply cannibalize the paid version.
However eCPM is a vary variable number, and is typically much lower earlier in the year, and much higher later in the year. 0.29 is in fact pretty low, with 0.5 more common, which would obviously make ad-supported apps more competitive, and of course with such an addictive application the growing installed base could soon result in the free app earning much more than the paid one.