Android supports it in many different forms. If you're rooted you can block pretty much every ad in all apps, but even without root Firefox on Android supports

Android supports it in many different forms. If you're rooted you can block pretty much every ad in all apps, but even without root Firefox on Android supports adblocking extensions and there are alternative browsers focused on ad blocking and privacy. Also to be fair you can already block ads on iOS if you jailbreak your phone.