Since its launch, iOS 16 has comparatively achieved a higher user base than iOS 15. Almost 100 days after its release on September 12, the latest operating system is in 68.91% of all iPhone models.
The information comes from the third-party analytics website Mixpanel. Comparatively, nearly 100 days after its release, iOS 15 had around 63% of the user base. That said, neither of these operating systems was able to outstand iOS 14, which, by that time, already had around 80% of all iPhones running this OS.