Topo Nomad vs Topo Maps US

Download high resolution USGS topographical maps for offline GPS* use. Topo Nomad is designed for road trips, camping, hiking, exploration and geographical history. Map images are accurately center aligned regardless of datum and placed on top of Apple's map kit for easy referencing and intuitive touch navigation. This software utilizes the latest capabilities of IOS offering the highest performance with fast start up, map rotation, rendering and zoom with unbeatable details and undistorted resolution. Map downloads are dispatched in the background so you can continue using the app while new maps concurrently install. Topo Nomad indexes of over 250,000+ U.S. Geological Survey current and historical topographic maps describing the topography of every region and island territories of the United States of America. Historical versions date as far back as year 1884. Install a map quad by pressing and holding a point on the reference map and discover the USGS historical maps available at that coordinate and the unique names given to every quad by the cartographers.** The limits don't stop there with just USGS maps. Import "Geospatial PDF" maps from the web, iTunes and email. Many local and national park services offer PDF map downloads from their web sites which automatically install into the Topo Nomad app. And, if you reside outside the United States check with your government services for topographic and aeronautical sectional maps with embedded geospatial metadata.‡ Cannot find that map you downloaded but know where in the world it's located. Simply zoom out the reference map view and all the topo maps become a colorful violet and partially transparent so you can spot your map. Installed maps are managed in a table format which can be sorted by name, distance, and scale. Multiple versions of the same map can be stacked on top of one another and made visible or hidden using two finger swipes. Planning a hike somewhere and want to know the distance of your jaunt. Download the map and use the dual mode ruler to measure the path distance and know the answer to "how much farther?" Purchase a subscription for unlimited map downloading. A subscription stops ads and doesn't auto-renew. The first few map download are complementary.‡ Features: • No need for cellular service to use maps • GPS location on downloaded topo maps while offline • Find geographic features with geocode search • Track path GPS recording* • Route paths and distance • Dual mode ruler with orthographic line and path measuring • Full app usability while maps download in the background • Displays footprint grid and quadrangle names • Aligns all map datums to WGS84 GPS coordinates • Dynamic map stitching • Cropping of map margins for one big map grid • Automatic map download for your current location • Uses GPS location service to identify your location on a topo map • Miles, Feet, Kilometers, Meters, Nautical Miles units • MGRS, UTM and geodetic Latitude and Longitude decimal and minutes seconds coordinate display • Import maps downloaded from the USGS in zip and PDF file formats • Import Geospatial PDF map images via a the web, email attachment & iTunes • MSL elevation for GPS location • Waypoints with Augmented Reality finder • Email and SMS text waypoints, tracks and routes as GPX files with subscription purchase Not currently supported: geo-TIFF; PDF OCG Layers. Not all geospatial datums and metadata formats are supported, please email support with Geospatial PDF issues. * Continued use of GPS running in the background can dramatically decrease battery life. Location feature may not function on iPod and wifi-only iPad devices without GPS hardware. ** Not preloaded with maps. WiFi recommended. Downloading queue caps to around 36 maps. ‡ After a subscription period expires, advertisement may resume from usage of the import features.

Download USGS topographic maps of the United States and use them offline, with no account and no subscription. Topo Maps US is built for people who go where cell service doesn't: hikers, backpackers, hunters, anglers, paddlers, mountain bikers, geocachers, and anyone who wants a real topographic map in their pocket. MAPS Choose from three USGS map layers: standard topographic, aerial imagery with a topographic overlay, or plain aerial imagery. OFFLINE Tap the map squares you want and download them before you leave. Downloaded maps work with no Internet connection and use no cell data in the field. TRAILS AND POINTS OF INTEREST BUILT IN Every map download includes the trails, summits, lakes, campsites, and other named places in that area from OpenStreetMap, so you can search them by name while you're offline. TRAIL RECORDING Record where you go. Recorded trails show your path on the map with distance, elapsed time, and average speed. Recording stops automatically when you start driving, and any drive at the start or end of a trail is trimmed off. ELEVATION PROFILES Every recorded or imported trail gets an elevation profile with distance labels and color-coded grade shading. Drag along the chart to see the matching point on the map, its elevation, and the time you passed it. FLAGS Mark your current location or any spot on the map. Flags record coordinates and elevation, and you can add notes and organize them by color: geocaches, trailheads, summits, camps, and so on. NAVIGATION Pick a flag and follow the direction arrow, driven by your compass heading, with the distance remaining. Handy for geocaching and for finding your way back to camp or the car. LOCATION See where you are on the map, your elevation, speed, and the accuracy of the GPS fix. MEASURE Trace a route on the map to measure its distance, then save it as a trail to follow later. IMPORT AND SHARE Import trails and waypoints from GPX files and geocache LOC files. Share your flags and trails by email, Messages, or AirDrop as standard GPX files that work with any GPS unit or mapping software. Back up your maps and data to a computer over Wi-Fi. Designed for iPhone and iPad. Note: Continued use of GPS in the background can noticeably reduce battery life.