Reader mode let you read articles without annoying ads, pop-ups and etc.
iPhone version: Tap “READER” in address bar or “R” in Fullscreen Mode. iPad version: Tap “READER” in address bar or “R” in toolbar.
Note: The Reader Mode button in Address Bar is turned on by default. If you want to turn off it, please go to Action Panel ➜ Settings ➜ Extensions ➜ Turn Reader off.