CoilTrail
Niitty Production
Welcome to CoilTrail, the ultimate metal detector log and relic hunting app. Whether you are a weekend hobbyist or a seasoned professional, this complete metal detecting diary is your essential tool for GPS treasure hunting. Stop relying on your memory and start mapping your success!
Your secret spots are safe – your data and find locations are 100% private.
🗺️ Detectorists Route Tracker
Never search the same empty ground twice! Our smart GPS tracker records your exact walking path while you swing. Simply keep the app open or use our handy screen-awake feature, and save your sweeping routes directly to the map.
📍 Detector Finds Map & Treasure Find Recorder
Log every coin, relic, and piece of jewelry exactly where you dug it. Add photos, depth, and custom color pins to build your personal detector finds map. Categorize your trips into folders for easy browsing.
⛰️ 3D LiDAR & Hillshade Maps (Pro)
Uncover hidden terrain features like old riverbeds, sunken paths, and ancient foundations. Access global high-resolution 3D LiDAR and Hillshade maps. Use the interactive opacity slider to blend the 3D shadows perfectly with your base map!
🌍 Advanced Soil Maps & Topography (Pro)
Identify the best grounds for old settlements! Access dynamic USGS geological maps in the United States and GTK soil maps in Finland to analyze ground types (sand, clay, bedrock) directly under your feet.
📐 Distance & Area Measuring Tools (Pro)
Measure exact distances and field areas directly on the map. Perfect for planning your search grids and estimating the size of potential hunting grounds before you walk.
📓 Metaldetect Logbook & Stats (Pro)
Keep a detailed history of your equipment and target ID statistics. The perfect coinshooting journal for analyzing which detector, coil, and settings work best for specific items.
🛡️ Landowner Permissions (Pro)
Easily save landowner contact details and permission boundaries directly on the map. Always know whose land you are on and who to call.
📊 Export & Backup
Export your finding reports and session data to CSV or PDF files. Keep your valuable data safe with easy backup options.
Turn your smartphone into the most powerful relic hunting app available. Download CoilTrail today and start building your personal treasure map!
Your secret spots are safe – your data and find locations are 100% private.
🗺️ Detectorists Route Tracker
Never search the same empty ground twice! Our smart GPS tracker records your exact walking path while you swing. Simply keep the app open or use our handy screen-awake feature, and save your sweeping routes directly to the map.
📍 Detector Finds Map & Treasure Find Recorder
Log every coin, relic, and piece of jewelry exactly where you dug it. Add photos, depth, and custom color pins to build your personal detector finds map. Categorize your trips into folders for easy browsing.
⛰️ 3D LiDAR & Hillshade Maps (Pro)
Uncover hidden terrain features like old riverbeds, sunken paths, and ancient foundations. Access global high-resolution 3D LiDAR and Hillshade maps. Use the interactive opacity slider to blend the 3D shadows perfectly with your base map!
🌍 Advanced Soil Maps & Topography (Pro)
Identify the best grounds for old settlements! Access dynamic USGS geological maps in the United States and GTK soil maps in Finland to analyze ground types (sand, clay, bedrock) directly under your feet.
📐 Distance & Area Measuring Tools (Pro)
Measure exact distances and field areas directly on the map. Perfect for planning your search grids and estimating the size of potential hunting grounds before you walk.
📓 Metaldetect Logbook & Stats (Pro)
Keep a detailed history of your equipment and target ID statistics. The perfect coinshooting journal for analyzing which detector, coil, and settings work best for specific items.
🛡️ Landowner Permissions (Pro)
Easily save landowner contact details and permission boundaries directly on the map. Always know whose land you are on and who to call.
📊 Export & Backup
Export your finding reports and session data to CSV or PDF files. Keep your valuable data safe with easy backup options.
Turn your smartphone into the most powerful relic hunting app available. Download CoilTrail today and start building your personal treasure map!
Developer email
niittyproduction@gmail.com
Released
Apr 5, 2026
Current version
4.0.1
Android version
7.0
Screenshots
