A massive 87% of iOS users are currently running some version of iOS 7 according to the latest numbers revealed on Apple’s developer site. Refreshing its iOS usage numbers on Monday, Apple measured usage of its most recent mobile OS for a seven‑day period ending April 6, 2014. The figure is up from 85% at the end of March, and 83% one month ago, when Apple introduced iOS 7.1. This update added several new features such as CarPlay, and also tweaked iTunes Radio, the Touch ID fingerprint sensor, and Siri.