Average cost per install should be significantly lower than 20 for most games (it's just 2 cents for most country's in the world after all). However yeah it see

Average cost per install should be significantly lower than 20 for most games (it's just 2 cents for most country's in the world after all). However yeah it seems pretty excessive. I wouldn't be surprised if that 20 cent cost is just there to encourage developers who'd have to pay to update to pro (e.g. a seat for a year seems to be equal to about 10k installs, but with pro you get extra 800k free installs and increase your revenue limit by another 800k so you'll likely won't even have to pay extra for users at all)