Some stats show iOS has larger market share then Android on US.
https://www.counterpointresearch.com/us-market-smartphone-sh... Apple leads in US smartphones with aprox 40% (not OS but devices)
https://gs.statcounter.com/os-market-share/mobile/united-sta... this one shows iOS at 60%
https://gs.statcounter.com/browser-market-share/mobile/unite... Safari has more then 50% share in mobile browsers.
Some stats show iOS has larger market share then Android on US.