2015 has been a busy year in technology, and GoSquared’s Global Metrics have been keeping track of the changes every step of the way. Let’s take a look at the most significant developments in the world of operating system adoption this year.

Windows 10

Currently at 15% – View now.

Released on July 29th, Windows 10 was the first OS to be offered for free by Microsoft (as long as you had a genuine copy of windows 7 or 8.1).

Within the first 24 hours Windows 10 made up 3.1% of traffic of all Windows traffic. Within the first 10 days Windows 10 would reached 10% of Windows users (how fitting, 10 10 10).

Interestingly the majority of upgrades to Windows 10 have come from Windows 8 users. So what about Windows 7?

Windows 7 dominates the install base, averaging around 60%. The release of Windows 10 hasn’t significantly dented this install base. The reason why could be down to the workplace and reluctance/risk of upgrading. When you dig into the usage you can see the peaks of the working days and the dips during the weekends.

iOS 9

Currently at 73% – View now.

Released to the public on September 16th, iOS adoption rates are by far the most impressive of all metrics to watch in real-time.

Before the release the previous OS, iOS 8 was installed on 90% of devices. Within 24 hours that had dropped to 76% and iOS 9 was installed on 17% of devices. The switch as you can see below is truly dramatic.

For comparison, in the first 24 hours of iOS 8 being released it reached 8% of users. To see an install base of 17% within 24 hours for iOS 9 is really quite an achievement.

El Capitan

Currently at 35% – View now.

The latest desktop OS by Apple, El Capitan, was released on the 30th September and within the first 24 hours claimed 11% of OS X users. Like with the rest of the metrics the vast majority of users of the new OS come from the latest version.

The previous two versions of OS X, Yosemite (10.10) and Mavericks (10.9) would reach 10% and 8.2% of users respectively in the first 24 hours of their release.

How are these metrics calculated

This data is based on a representative sample of global traffic trends across sites using GoSquared. GoSquared tracks billions of pageviews every month across over 90,000 sites. View the Global Metrics in real-time.