3 Grams is a 3 in 1 Digital Scale App. If you are looking for one of the best free digital scale grams app / timbangan that weigh in grams, this is the app you need to download! Our app is free but supported by ads, if you feel the need you can disable ads using a one off in app purchase or buying the Pro version. Available on Android and Windows Phones. 1 - Digital Scale.