Apple's overhauled iOS 7 update has been live for less than 10 days, but the numbers have already started coming in, and they're quite impressive. According to several estimates, the adoption of iOS 7 spiked to 30% of the total iOS ecosystem in the first 24 hours, alone. This has since changed, and dramatically at that, making iOS 7 the “fastest software upgrade in history”, according to Apple, though Cupertino didn't bother to compare it to previous releases or provide exact figures.
No matter, for third-party marketing platforms like Fiksu and Mixpanel have a statistically sufficient sample of the iOS world to help them with estimates, and the willingness to share their numbers. Starting off with Fiksu, the company has been tracking iOS 7's progress hourly, and estimates that 188.42 hours after its release, iOS 7 now accounts for 57.6% of the total Apple ecosystem. The numbers from Mixpanel are fairly similar – according to their estimate, 60.97% of all iOS users are now running on the new firmware.
Fiksu has also provided a chart with a break down of the iOS universe, at least as far as the iPhone is concerned. As you can see below, the adoption rates for the iPhone 5s (1%) and iPhone 5c (0.3%) are still tiny in comparison to the yet-to-be-dethroned iPhone 5 (39.3%). The now aging iPhone 4s and iPhone 4 are no joke, either – they comprise a 32.2% and 24.7% share, respectively.
Apple has definitely made a name for itself when new software is involved – these make the rounds pretty fast, ensuring that the vast majority of people on the Apple OS are up to speed with the company's latest efforts, and that's admirable.