That's less extreme than it sounds for several reasons:
- Android's market share was tiny for the beginning of 2010. It didn't start taking off until mid-year with the EVO, Droid X, Galaxy, Desire, etc.
- There were way more paid apps for iOS than Android in 2010.
- Android apps more commonly use ads than iOS apps, which isn't captured in app store revenue.
I'd still expect that the median iOS app makes more than the median Android app today, but the difference should be much less than 20x.
That's less extreme than it sounds for several reasons:
- Android's market share was tiny for the beginning of 2010. It didn't start taking off until mid-year with the EVO, Droid X, Galaxy, Desire, etc.
- There were way more paid apps for iOS than Android in 2010.
- Android apps more commonly use ads than iOS apps, which isn't captured in app store revenue.
I'd still expect that the median iOS app makes more than the median Android app today, but the difference should be much less than 20x.