Fewer iPhone users are updating to iOS 26 than they did with iOS 18
appleinsider.com Jun 11, 2026

Fewer iPhone users are updating to iOS 26 than they did with iOS 18

AI-summarised brief · reviewed before publication

The iOS 26 update has the second-worst adoption rate of all iOS releases since 2015, with 79% of all devices currently running the software. This is lower than the 82% adoption rate of iOS 18 in June 2025. According to Apple's App Store data, 86% of devices introduced in the last four years have iOS 26 installed. The adoption rate is below the 82.3% average from 2015 through 2026. However, more users have upgraded to iOS 26 in the last couple of months, with 66% running the software in February 2026. The exact adoption rates for iOS 8 through iOS 26 are provided, showing a decline in adoption rates for iOS 26.

💡 Why It Matters

  • · Slower adoption rates may indicate user dissatisfaction with iOS 26's features, such as its Liquid Glass design language.
  • · Improved performance in iOS 27 could boost adoption rates, as it addresses user concerns with speed and efficiency.