Androids flexibility is also its undoing. The majority of devices are sub-$300 phones which for people in developing countries amounts to a whole months wages (or more). These same customers, through no fault of their own won’t pay up front for an app when it’s more lucrative for devs to use ads or time skips to make money.

The iPhone is predominantly the domain of well-off westerners who will stump up for an app. Devs make more money from iOS than Android.