Plan

Tap the map to add a point · drag a point to move it · tap it to delete · drag a small circle to insert a point, tap it to switch trail/straight
Done–
Remaining–
From track–
Walked–
Moving–
Speed–
No track GPS off

Track Library

Settings

To change a saved track: Track Library › Edit. Editing a recorded walk or a GPX saves a new track and keeps the original.

Import a trail guide

Paste the sheet: one line per milestone, "mileage description", with * after the mileage for restrooms. Other lines are ignored. Only place names are sent to the search, never the rest of the sheet.

CSV columns: mile, place, note, restroom (a header line names them). A place is searched as written; a row with no place is a waypoint.

DoneRemainingTotal
Distance–––
Ascent–––
Descent–––
Walked–
Moving–
Stopped–
Paused–
Avg speed–
Speed–
Elevation–
Ascent–
Descent–
Vertical–
Avg up–
Avg down–

Tracks

None yet. Import a GPX, draw a track in Plan, or make one from a walk.

Walks

None yet. Every walk is saved here when you press Stop.

Import adds the file here and loads it to follow in Go; pick several files at once to add them all without loading any. "Export" on a row writes it as GPX (a walk stays a walk when imported again). "Edit" opens a saved track in Plan; editing a recorded walk or a GPX saves a new track and keeps the original.

Loaded track

None

Current recording

Nothing recorded

"Export track" saves the loaded route with its elevations. "Export my hike" saves the path you actually walked, with the time of each point (one segment per Start/Stop) and its elevation from the DEM (none for points recorded with no signal in an area not stored on the device). On iPhone and in Safari on the Mac the Share sheet opens: Save to Files, AirDrop, Messages. Other browsers download the file. GPX files always store metres (the GPX standard); the description inside gives the totals in your units.

Units

Alerts

Straight segments of a planned track have no path to follow, so you may stray further from the line there. Whatever the alert, Go shows "Off track" and how far the track is, and Remaining shows "—" until you are back on it. The Alerts button on Go changes it for the current hike only.

Screen and battery

Dim shows a black screen, which uses very little power on the iPhone's OLED display. The map stops updating while dimmed. While hiking the app keeps the screen awake with Wake Lock (Go shows "Screen awake"; this device: –).

GPS smoothing

More fixes give a steadier position but it trails behind you: about half a second per fix (5 fixes ≈ 2 s ≈ 3 m at walking pace).

Pause

Go › Pause (during a picnic, at a summit, in a café) draws a zone around you. Nothing counts while paused, even walking about inside it. Once you are outside it and walking steadily away (or along the loaded track) for about a minute, the hike resumes by itself, counted from where you left the zone, with an Undo. If it isn't clear (outside but slow, or back and forth), it asks instead. Resume works by hand too.

Recording gaps

When the app was in the background, locked or closed during a hike, or GPS had no fix for 20 s or more, the way you walked is guessed (Track Library › Gaps). Trail routes that would need a faster walk than this in the time you were gone are left out.

Stop detection

The distance grows to the GPS accuracy when that is worse. The climb check stops slow, steep climbs from counting as stops: 3 m (10 ft) in 30 s is a climbing rate of 360 m (1,180 ft) an hour. Lower it if slow climbs still show "Stopped"; it needs a track with elevations. The debug view's "Climb" line shows the value over the last window, to help you choose.

Elevation

Removes small ups and downs from total ascent/descent. Compare with Maps 3D PRO on the same GPX to tune it. Tracks without elevations (free recordings, GPX files without them, the test loop) get them from a DEM (Digital Elevation Model) when online; Go › Fill elevations retries after being offline. While you walk, your elevation, ascent and descent come from the same DEM at your position (never GPS altitude).

Elevation tiles stored on this device: –

Each tile covers about 1.7 km (1 mi) and is kept once downloaded (at most 600, about 60 MB), so walking again in an area you have walked or loaded a track in works without signal. With no signal anywhere else, Go shows "elevation unavailable".

Planning

Slopes are shown in degrees and as a grade: 15° = 27%, 20° = 36%, 30° = 58%, 45° = 100%. Trail segments follow footpaths using openrouteservice (foot-hiking), through the Trails relay: nothing to set up. When routing is unavailable (offline) or its daily limit is reached, segments are drawn straight.

Data sources

The map credits are on the map itself. . . Elevations (DEM):

Testing

Simulated GPS walks the loaded track at 10× speed with GPS noise, a 45 s stop and a 120 m detour. With no track loaded it walks a 2 km square from your last recorded point (or the map centre), to test free recording. After Go › Pause it stands still for a minute (a picnic), then walks on. The app reloads when you switch it. Remember to turn it off before a real hike.

"Test loop here" draws a square loop of about 800 m starting where you stand, for a walk-around test. It is not kept when you close the app, unless a hike with it is in progress.

This device

Running as
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Screen wake lock
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Vibration
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Storage
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App version
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Resume hike?

Keep your walk?