Daniel Eran Dilger, AppleInsider:

Apple’s U.S. customers installed 45 new iPhone apps in 2017, a growth of 10 percent over last year, while Services revenue from In-App Purchases and Subscriptions expanded by 23 percent–driven by games, music and video streaming and dating services. And overall, Apple’s U.S. App Store customers drove significantly higher revenue per user ($58) than Google Play ($38).

Daniel walks through the details in this SensorTower smartphone device analysis.