As of October 7, the latest version of Apple's mobile operating system powered 54 percent of all iPhone, iPad, and iPod touch devices.
Apple's numbers are lower than recent data obtained from Mixpanel's iOS adoption tracker, which put adoption at 55 percent on the last day of September. Just over two weeks after iOS 10 was released to the public, its adoption rate was recorded at 48.16 percent based on the same data feeds.
Last year, less than two weeks after iOS 9 was released, Apple said it was installed on more than 50 percent of active devices, making it the operating system with the fastest ever adoption rates.
iOS 10 had some early installation issues that could have put some off downloading the update, but features like a revamped Messages app with stickers, a Siri API for developers, and new facial and object recognition capabilities in Photos have ensured a steadily increasing install base.