Digital Scale+ is a working, functional weight scale utilising the 3D Touch capability on iPhone to measure weight. Just open the app in Safari using your iPhone with 3D Touch (iPhone 6S/7/8/X/XS ONLY) and start measuring! Note that the item you weighed must be detected by the touch screen, just like a finger, in order to register a weight.
This 3D touch scale can measure to a max accuracy of ±10g, so hope you enjoy! Read below for more info and instructions.