Apple’s iOS 26 is experiencing the slowest adoption rate in years, with only 15-16% of active iPhones using it nearly four months post-release, compared to significantly higher rates for previous versions like iOS 18 and iOS 17. As of January 2026, iOS 26.1 accounts for about 10.6% of devices, while over 60% remain on iOS 18. Additionally, MacRumors data shows only 25.7% of visitors are on iOS 26, despite its introduction of a new visual redesign called Liquid Glass.
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