You can use a MacBook as a scale: the TrackWeight app weighs light objects via the trackpad after calibrating it with your finger.
Have you ever needed to weigh something but didn’t have a scale nearby? If there’s a shiny MacBook at hand, it can handle the task.
All you need to do is install the TrackWeight app, which lets you easily weigh relatively light objects using the trackpad.
To make it work, place your finger on the trackpad and press the space bar. This resets the scale to zero, after which you can put the object on the trackpad and get its weight.
