Trail Notebook - Hiking & GPS

Trail Notebook keeps the plan and the record of every hike in one place. Build an itinerary with course times to get a planned arrival time for each point, record your GPS track and passage times on the day, then compare plan and actual when you are back. Offline maps, off-route alerts, a descent-time watch and a printable hiking plan are all free.

KEY FEATURES

■ Hike planning with planned times
List the trailhead, summits, huts and junctions, enter the course time for each leg, and the app works out your arrival time at every point. Adjust for your pace and rest stops. Sunrise and sunset for the date and place show whether you will be down before dark. Day hikes, hut stays, tent trips, snow and multi-day trips are supported.

■ Draw a route, import GPX or pick a public route
Tap along the map and the line follows real trails (OpenStreetMap data, routed on your phone). Undo one tap at a time; distance and total ascent appear instantly. Import routes as GPX or KML, or browse OpenStreetMap hiking routes worldwide by distance, name, or country and region, and preview the line before you use it.

■ GPS recording with no limits
Recording runs as a foreground service and saves every point as it arrives, so a closed app never loses your track. Pause, resume and watch distance, moving time, ascent, altitude and speed live. If no GPS fix arrives for 10 minutes you are notified, so you never find out at the bottom that recording had stopped. Start from the app, a home-screen widget or a Quick Settings tile. Staying in a hut? Choose "Done for today" and continue the same hike tomorrow.

■ Passage times and plan versus actual
Tap "Arrived" at each point. A comparison table shows how far ahead or behind plan you were at every point.

■ Offline maps, unlimited areas
Save the visible area or the area around a route and use the map without signal, with no limit on the number of areas. Choose OpenTopoMap, OpenFreeMap with contour lines generated on your phone, or the official GSI maps in Japan.

■ Safety
• Off-route alert when you leave the planned route
• Descent-time watch: after your planned finish a notification asks you, with "I'm down" and "+30 min"
• Hiking plan as text or PDF with dates, area, itinerary, planned finish and main gear, plus an "I'm back" message
• Share your location: coordinates, map link, accuracy and time

■ Gear checklist
Start from four templates (day hike, hut, tent, snow), check items off, keep your own gear list and see the total weight.

■ Compass, photos and notes
Tilt-compensated compass pointing to true north, with coordinates, altitude, sunrise and sunset. Photos are placed on the map from their location data or from your track at the time they were taken. Add notes and the weather for each day.

■ Export and backup
Export tracks as GPX, KML or CSV. No account needed: data stays on your phone, with manual backup and restore as a ZIP file.

PREMIUM (ONE-TIME PURCHASE)
• Arrival forecast for the next point and the finish, with behind-schedule and after-sunset warnings
• Automatic passage times when you reach a waypoint
• Learns your pace from past hikes and estimates course times
• Heatmap of all hikes and a year in review with summits climbed
• Hike report as a social image and an A4 PDF
• Base weight, weight by category and your own gear templates
• Elevation correction with terrain data
• Battery monitor, spoken alerts, automatic backup to a folder
• Custom recording interval, track coloring by speed or altitude, privacy zone, color themes

PRICING
The core features are free with no time limit. Premium is unlocked with a single one-time purchase and is not a subscription. Safety features (offline maps, recording, off-route alerts, hiking plan, descent watch) are never behind Premium.

Map data: OpenTopoMap, OpenFreeMap, GSI Japan, © OpenStreetMap contributors. Check trail closures before you set out.