3 Grams Pro is a 3 in 1 Digital Scales App.Available on Android and Windows Phones.The Pro version Features:No ads at all.Faster.9999 Calibration Credits included - so you most likely will never need to buy any more.There are no in app purchase items that you can purchase.1 - Digital ScaleUses your phones built in tilt sensors to calculate weights of objects. If calibrated properly and used correctly the app has been shown to be quiet accurate. Balance your phone on something curved or soft and then place objects to weigh on bottom of phone. Requires calibration. Each calibration will use up one calibration credit.2 - Visual Digital ScaleUse your phones camera to weigh larger objects with some accuracy. Requires a little DIY using common household objects. Requires calibration.3 - Fake / Prank Digital ScalesFool your friends and family using the fake scales. Predefine upto 4 fake weight values and you can also use multi tap on the tare button to increase to other values. Simply place object on the screen and tap once. Please note the readings are not real in any way.Tips:Do not place objects directly on the screen, use a piece of paper, sticky post-it note or a screen protector.Do not allow the phone to tilt over when placing object on it.You can use many different common objects for calibration like coins, memory cards, batteries etc..Please make sure your device has tilt sensors working and calibrated properly.Save money by buying bigger calibration credit packs via in app purchase.Features:Sensor based Digital Scales.Camera based Visual scales.Fake / Prank Scale with predefined weight values.Weight conversion screen.Multiple units (Milligrams, grams, ounces and pounds (lb))Video demonstrations.Stabilization engine.Adjust decimal places.Built in help documentation.Disable all ads via a one off in app purchase.We hope you enjoy and share the app with friends and family.