I purchased both iHike and iSail apps this year and they are both TERRIFIC! They were both easy to download and easy to use. I used iHike in Colorado while horseback riding in the Gunnison National Forest. 80 miles of unmarked trails in an area that was "off the grid"! No problem for this app. I downloaded the maps prior to the trip and the app worked flawlessly. I used the app extensively to track my path into the forest. With the path recorded, it was much easier finding my way back home! I still brought hard copy maps and a compass as backup, but the iHike app was my principal source of navigation. 9 days of riding on unmarked trails and I never got lost. Thanks for making such great apps!
OutdoorsTim about iHikeGPS : Classic Topo Maps, v6.3