Annual revenue per iOS user estimated at $150

We all know that Apple's iOS devices are popular. Surveys and analyst predictions place Apple at or near the top in the smartphone, tablet and media player market. That's great for headlines, but what does it mean for Apple's bottom line?

Horace Dediu of Asymco did some fancy figuring and calculated that the annual revenue for each iOS owner is US$150. This is based on 180 million current iOS users with 200 million iOS devices. Given the astronomical growth of the iOS platform, this installed user base could quickly climb to 500 million users, a lofty figure that would provide Apple with $74 billion per year in recurring revenue.

Mac sales are also climbing and could easily reach 100 million active users who generate $24 billion a year in revenue. Combine the Mac users with the iOS users and Apple could pull in a cool $95 billion per year in revenues from OS X and iOS devices alone.

These numbers are a conservative estimate as Dediu does not factor in sales from iTunes, iPods, accessories and software. It also assumes a very generous 3.5 year life span for iOS devices and 5.5 years for Mac hardware.