If the application is backcountry hiking or search and rescue, then the customer is ready to “go well prepared.”
- A handful of eπ Maps are completely offline.
- Use your GPS to see your location on the trail.
- With beautiful shaded relief.
- Topographic map with 40 feet contour intervals.
- When you have service, get local weather from Weather.gov.
https://itunes.apple.com/us/developer/epi-rational-inc./id416401310