Avenza Maps™ is a mobile map app that allows you to download maps for offline use on your iOS, Android, and Windows smartphone or tablet. Use your device’s built-in GPS to track your location on any map. Plot and record information about locations, import and export placemarks, measure distance and area, and even plot photos. You can easily browse and purchase maps from all over the world using the convenient Avenza Map Store—online or in-app.
See more at http://www.avenza.com/avenza-maps or http://www.avenzamaps.com