Weight Checker - Calculator is a free Android app developed by PickDrop that helps users to calculate their weight without a weighing scale. The app requires users to input their height, chest size, and hip size. With its own algorithm and calculation, the app provides an estimate of the user's weight to the nearest value. However, the results may vary slightly based on the user's input.

In addition to weight calculation, the app also features an auto mode based on the user's region. Users can select their shirt and trouser sizes to get an approximate prediction of their sizes. It should be noted that the results may have some variations since the input is only approximate.