If you travel frequently and still like to shop, sometimes decoding what size you are in a different system can be a headache. With WhatSize app, your measurements and sizes (Shoe size, waist, inside leg, dress size etc) can be stored and easily translated into the different system. For example a size 12 UK shoe is a size 48 EUR. It also helps with jumping from imperial to metric (Feet & Inches to Metres and Centimetres) and can store information about other people as well as yourself if you are shopping for a gift. Whilst most of this information is available on the internet for free, it's all collected neatly here in a simplistic menu style.