3 Grams Digital Scales App It is a 3 in 1 digital scales app that has real digital scales, visual digital scales and a fake / prank digital scales. The accuracy depends on how you use the app and the way you balance your phone. You get 2 free credits and another free credit for checking out our Facebook page. Has a built in stabilization engine to give steady readings too. Digital Scales: Real accurate digital scales that works using your phones sensors! Visual Scales: Uses your phones camera to calculate weight of larger objects Fake / Prank Scales: Prank your friends with predefined weight readings, very simple to use and realistic looking simulated readings.