The PRO version works with the Structure Sensor, a 3d scanner for iPad. It is created for the professional who needs to keep track of number of users. Choose this if you own an iPad and the Structure Sensor and are a professional who wants to use the app for yourself and your clients as well.
The HOME is the mobile version available for iOS and Android. Aimed at the end user, who wants to use BodyRecog for her/himself. Choose this if you have a smartphone which runs on the aforementioned operating systems and you want to use the app just for yourself.