SweepTrack Metal Detecting App

A GPS app for metal detecting, made by a detectorist. Your path draws on the map as you walk, so you can see the strips you missed. Every find is pinned where you dug it, and old maps laid over today's satellite view show where houses and roads once stood.

TRACK WHERE YOU'VE SWEPT

GPS tracking keeps working with no phone signal. Pro adds a Coverage Heatmap that shows the ground you missed, ghost tracks of past sessions on the live map, a Road Back line to your start, and comparison of up to four visits to the same field.

LOG EVERY FIND WHERE YOU DUG IT

One tap pins a find where you stood: coin, relic, jewelry, gold, treasure or trash, with a name, notes and a photo. Pro adds value, depth, weight, signal/VDI, soil type, audio, video and more photos. Waypoints mark spots worth coming back to.

PIN YOUR OWN MAPS TO THE GROUND

With Pro, import a scanned old map, a parcel sketch or an aerial photo and lay it over the live satellite view. Drag, pinch and twist it into place, or tap a few matching points on the image and the map for a precise fit. Fade it in and out, and walk the old landscape with your live track on top.

HISTORICAL AND OFFLINE MAPS

Pro adds one-tap historical maps: USGS historical topo across the US and eHarta historical maps across Romania. A slider fades between the old map and today's satellite, so a vanished farmhouse shows up where it stood. Pro also downloads maps for use without a signal.

YOUR SPOTS STAY ON YOUR PHONE

Your sessions and finds are stored on your device, with no account needed. No ads, no advertising trackers, and your data is never sold. Crash and usage reports stay off unless you turn them on. Radar is the one feature that shares your location, only with the group you join by code, and groups expire after 12 hours.

LANDOWNER PERMISSIONS

The Permission Vault keeps each landowner's contact, status, permit dates and signature, and adds the expiry to your calendar. With Pro, draw the exact site boundary, generate request and thank-you letters as a PDF, and turn on Perimeter Guard: it vibrates as you near the edge and sounds an alarm if you step outside.

RADAR: YOUR GROUP ON ONE MAP

Start a group, share the code or QR, and everyone who joins appears on one live map. Send quick messages ("On my way", "Found something!"), drop shared or private pins, set a base pin for the car, follow a guide arrow to anyone, and see how much daylight is left. SOS alerts the whole group with your location (it does not call emergency services). Joining is free; starting a group needs Pro.

DETECTOR PRESETS

Works with any detector. Pick yours from 61 models across 12 brands, name it, and keep your own notes on how you run it. Share presets by QR code. Free keeps one preset; Pro keeps more.

FORECAST AND TIDES

The Detecting Forecast scores conditions from 0 to 100 for any location (2 days free, 7 with Pro). Pro adds NOAA tide tables for US coasts up to 14 days ahead.

HISTORY AND BACKUP

Every session is saved with its track, finds and weather. Pro adds advanced statistics, Finds Intelligence (finds and value by type, detector and site), GPX, KML, CSV and JSON export, and Google Drive backup, encrypted on your phone if you set a passphrase.

BUILT FOR THE FIELD

Dark, sun-readable Daylight and High Contrast modes, plus red Night Vision with Pro. Nine accent themes, three of them free. 14 languages.

FREE AND PRO

Free: GPS tracking, 10 sessions a month, basic find logging, 5 waypoints, one permission, one detector preset, the 2-day forecast, joining Radar groups, and the compass, ruler and measure tools. Pro removes the limits and unlocks everything marked Pro above: a yearly or monthly subscription with a free trial when you're eligible, or a one-time Founder's Lifetime purchase for the first 1,000 buyers.

DETECTING IN ROMANIA?

SweepTrack RO is a separate app for Romania, built around protected archaeological sites and nature areas, with zone checks and proximity alerts. Those are not in SweepTrack Pro.