: Uses the phone's tilt sensors for estimations. It requires careful calibration with a known weight (like a coin) to be accurate.
: These apps use your phone's built-in tilt sensors (accelerometer) to estimate weight. You balance your phone on a curved or soft object (like a bag of air) and place the item on the phone's bottom; the app calculates weight based on how much the phone tilts. scale App For Windows Phone
: These apps don't weigh things themselves but act as a display for professional Bluetooth or USB digital scales . : Uses the phone's tilt sensors for estimations