[bluesign]

Android phones are approx. 2.5x more than Apple phones worldwide

Also Play store has 1.5x more apps.

So almost 8x difference for developers. (per person)

[zucker42]

What's difference in average cost of an Android phone versus an iPhone?

[bluesign]

Huge, but in the end metric is revenue per user. Luckily game engines targeting both automatically, otherwise Android would suffer much.