iOS 11 adoption has reached 52 percent, as measured by the App Store on November 6, 2017. That’s just 49 days after the launch of Apple’s latest mobile OS.
Apple released iOS 11 to the public on September 19, 2017. The adoption rate is attractive given the time span, however, it’s relatively slower than that of iOS 10, which reached 60-percent in just 45 days after launch.
As you’d expect, remaining iOS devices are using either iOS 10 or an older firmware version. The 38 percent of them are on iOS 10, while the rest 10 percent on older version. Have you updated your iOS device to iOS 11?