A developer has found a wonderfully weird use for the MacBook's trackpad. PurrPad uses its built-in haptics to make your trackpad purr like a cat, complete with different personalities, customizable affection levels, and even zoomies.
The creators of the PurrPad app came up with a completely abstract yet brilliant idea. They transformed the haptic engine (Taptic Engine) in MacBook trackpads into a virtual cat. The app doesn't play sound through speakers. Instead, it generates microvibrations at a frequency of 25.75 Hz, the exact frequency at which a real pet purrs. The result? You feel a physical, realistic purr under your hand. Six temperaments, the option to record your own…