That’s true globally, but in the US, iPhones are 60% of the smartphone market. In the US, iPhone users are also younger, more affluent, more educated, and I suspect more likely to fly than Android users. iOS users also dominate in app spending. And from a practical standpoint, 93% of iPhone users are on the latest version of iOS within six months, compared to 20% of Android users, which is huge when it comes to development costs.