### Instruction:
Why are iPhones more popular than Android phones inside the United States, while the opposite is true outside the United States?

### Response:
The primary reason why iPhones are more popular inside the United States than outside the United States is cost. Because many companies manufacture and sell Android phones, the cost of an Android phone is low. On the other hand, Apple is the only company that sells iPhones, and this lack of competition allows Apple to charge a higher price. The United States has the highest per capita household income of any country in the world, thus people in the United States are more able to afford iPhones than are people outside the United States. A secondary reason for iPhone’s relative popularity in the United States is cultural: an iPhone is seen as a sort of status symbol, and some iPhone features only work with other iPhones, thus some people feel they will be “missing out” socially if they have an Android phone instead of an iPhone.