The adoption rate of iOS 7 continues to climb, and Apple has posted the latest figures over on the developer portal. The latest numbers show a 78 percent adoption rate of the latest version of iOS, up another 2 percent in just the last two weeks.

The figure is calculated from App Store usage, and as a result iOS 6 has dropped to just 18 percent, with earlier versions holding steady at 4 percent. Sure, not everyone has a device that can run iOS 7, but the Christmas period just gone will surely account for a little of the spike in the past two weeks.

Source: Apple Developer Portal