PatchTrader - Making Patch Trading Easier PatchTrader makes patch trading easier by bringing people together at an event who want to trade patches. Taking advantage of your devices native mapping and GPS, PatchTrader lets you check in when you want to trade patches, showing your exact location on the map to other patch traders and letting you see the location of any other patch traders who have checked in. Useful by Scouts, Scouters, or anyone else who enjoys trading patches