The iOS 18 adoption rate numbers roughly match the percentage of iPhones that were running the previous iOS 17 software a year ago.
iOS 18 adoption on pace with comparable iOS 17 statistics last year

The iOS 18 adoption rate numbers roughly match the percentage of iPhones that were running the previous iOS 17 software a year ago.
Apple is no longer allowing people who are on iOS 14 to skip the latest iOS 15 update, a possible reaction to the company's own numbers showing the number of devices in the wild running iOS 15 lags behind the iOS 14 adoption rate at this point after release.
Apple yesterday released first official adoption rate figures for iOS 13 since its September 19 debut, revealing that the update is now installed on fifty percent of all iPhones out there.
According to fresh figures that were published on Apple's App Store dashboard for developers yesterday, iOS 12, the company's latest and greatest mobile operating system, is now running on 80 percent of all active iPhone, iPad and iPod touch devices in the wild.
Apple's iOS 12 software now powers three-quarters of all devices.
Having crossed the 75 percent adoption rate, Apple's iOS 12 software has outpaced iOS 11's adoption around this time last year, according to fresh data from analytics firm Mixpanel.
Apple's major iOS 12 update is now powering 63 percent of active iPhone, iPad and iPod touch devices just a month and a half following its release on September 17, 2018 (44 days ago).
Nearly a year after it was first released, the iOS 11 adoption rate now stands at 85 percent, according to updated statistics on Apple's App Store support page for developers. In May, the last time the chart was updated, the adoption rate for iOS 11 stood at 81 percent. The latest stats show that 10 percent of iOS devices now use iOS 10, while the rest are on older iOS versions.
iOS 11 is now installed on 81% of Apple's over a billion active iPhone, iPad and iPod touch devices in the wild, up from the 76% adoption rate reported on April 25. By contrast, Android Oreo versions powered less than six percent of active Android-driven smartphones and tablets that had been accessing Google's Play Store during a seven-day period ending on May 7, 2018.
Apple's iOS 11 operating system now powers 76% of active devices in the wild.
Apple on Friday shared the most recent iOS 11 adoption rate figures through its App Store dashboard page for developers. According to data taken as recently as January 18, Apple's latest mobile operating system is now installed on 65% of compatible devices.
As per Apple's official stats available on its App Store webpage, the various iOS 11 versions are now installed on 59 percent of compatible iPhone, iPad and iPod touch devices in the wild.