Apple tells us that four weeks since launch, iOS 13 is now in use by over half of all the devices sold in the last four years; that data may also hint at the strength of its iPhone sales.Apple latest data shows rapid iOS adoptionSince iOS 13 release on Sept.
19, Apple latest data shows the following:All devices introduced in the last four years55% of all devices introduced in the last four years use iOS 13.38% of all devices introduced in the last four years use iOS 12.7% of all devices introduced in the last four years use an earlier version of iOS.All devices used