Does iOS have a built-in RSS reader? Do any iOS versions come with a built-in RSS reader?
Sort of... you can go into Safari, choose a website, then click the bookmark icon, select the @ tab, click Subscriptions and then click Add Current Site. 

Otherwise Reeder for IOS is a great RSS reader. https://itunes.apple.com/us/app/reeder-2/id697846300?ls=1&amp;mt=8