OnlyTrails is a native hiking companion built for the backcountry — real topographic maps with contour lines, offline navigation, and a power system designed to survive an all-day hike.
TOPOGRAPHIC MAPS
• OpenTopoMap tiles with true contour lines and hillshade
• Trail polylines colored by steepness, plus an elevation profile and grade chart
• USGS Topo and standard basemaps included
IMPORT YOUR TRAILS
• Open any .gpx file from Files, AirDrop, or another app
• Automatic distance, elevation gain/drop, grade, and difficulty
SMART ENERGY SAVE NAVIGATION
• Download a trail's tile corridor for true offline maps — no signal needed
• Adaptive GPS that drops to coarse between trail forks and uses the motion coprocessor's pedometer to track progress, waking full GPS only at decision points
• Eyes-free mode: spoken and haptic fork cues with a near-black glance screen
• Battery-vs-ETA budget that escalates power saving as your charge tightens
• Off-route alarm and a persisted breadcrumb log for retrace and where-am-I, even offline
COMMUNITY
• Share and discover trails
• Crowd difficulty voting, reviews, and junction markings (Bee · Thorn · Slippery · Fork)
• "What-the-Fork" photos pinned to confusing junctions
Map tiles © OpenTopoMap (CC-BY-SA) and © OpenStreetMap contributors. USGS Topo tiles courtesy of The National Map.
