A must have toolkit for every outdoor enthusiast: climber, hiker, off-road driver. All the essential tools for navigation are integrated seamlessly in one app. MapTool combines full screen map, GPS, compass, altitude, UTM, Magnetic declination, precision grid and more. GPS with COMPASS Both GPS and Compass are displayed on the map with a high precision grid. Accuracy (±) is indicated to check signal quality or magnetic interference. ALTITUDE Current altitude is displayed with accuracy (±) in GPS mode. SPEED Current speed calculated by iPhone GPS UTM Coordinates WGS84/NAD83 UTM coordinates are displayed in real time and in map browsing mode (click Location button). MGRS and Compass Mils (click Location button) MAGNETIC Declination Current magnetic declination (∆) for the entire world using World Magnetic Model (WMM). A must have feature for those that use a physical compass as well. MAP Browsing Map browsing with Latitude/Longitude or UTM coordinates for the entire world. MAP Grid High precision grid combined with predefined scale values for both metric and feet/miles (click Scale button) BATTERY Friendly Turns off GPS in compass only and browsing modes to improve battery savings