Haptics Explorer is for iOS developers who need to feel a haptic on a real iPhone before shipping, because the Simulator does not vibrate. Eight groups cover impact, notification success/error/warning, selection, rhythms, gestures, game hits, accessibility, and custom patterns. Play, loop, change speed, intensity, and sharpness, then copy a snippet to paste into an app. It is a try-on bench for UIKit haptics, not a game.