This app does not work on my S4 mini. Fortunately, I paid for nothing. Following the motto "No function -> no money" (worth.) - App can not move in SD memory. - Storing map / guides only in the internal memory -> no Go - Installation to download maps / guidebooks lasts forever. - Search function does not work -> no input field is present - Maps / guide will not be displayed -> gray screen + The only thing that works is: "Make Nearby Guide" Hands off of it ...