[alexkcd]

iOS apps are more profitable on a per install basis. So the discrepancy cannot be explained by there being multiple Android stores. Your hypothesis in brackets is the more likely explanation.

Source: I worked on an app with millions of paid subscribers.

[oblio]

iPhone had first mover advantage and comes from an American company.

As a result iPhones have 50% of the smartphone market in the US, and Americans have the highest disposable income per capita of any large country (>20 million people).

iPhones tend to have much smaller market shares outside of the US. In some places they're maybe around 30% but generally they're much, much lower.

[Grustaf]

iPhone has a smaller market share in poor countries. In rich European countries the market share is much higher than in the US. In Scandinavia seeing an Android phone is a rare occurrence, if your friend has one you're surprised and ask how come.

It's a function of wealth, not first mover advantage. Well off people choose iPhones. That should tell you something.

[alexkcd]

The demographic for our app was primarily the US.