Every moment counts outdoors

Two ways. No forms in the field.

You can photograph a find directly with GPSCam – or keep your phone in your pocket for the entire detecting trip and create finds later from automatically detected search stops.

Log with a photo

With the integrated GPSCam, one photo is enough. Time, GPS location, and detecting trip are carried over automatically.

Log without a photo

Keep your phone in your pocket. ThatsLog automatically detects search stops: later at home, select the stop points and create finds with one click. Time and GPS data are carried over.

Complete it later

Add images, description, category, date, and other details later on your phone or PC.

From find location to analysis

GPS find logging for metal detecting

ThatsLog combines fast field recording with complete, well-organized management of your finds.

⌖

GPSCam, detecting trips & Track Lab

Record detecting trips, automatically assign photos and finds, and continue working with your tracks.

Archive raw tracks and automatically detect search stops
Create finds later directly from selected search stops
Clean tracks, straighten paths, and compare distances
Adjust optimization parameters and apply results
Export detecting trips and optimized tracks as GPX

🗺️

Maps

View, check, and organize find locations and detecting trips on maps or orthophotos.

◎

Coins & Numista

Identify coins, manage coin types, import Numista data, and analyze your collection.

⇥

Import CSV & Conota

Conveniently import existing find data into ThatsLog from CSV files or Conota images.

▤

PDF & HTML

Create find lists, reports, and shared documents with images, coin data, and optional location details.

↻

Backup & synchronization

Create complete backups and synchronize your data between devices in a controlled way.

✦

Find management

Organize finds with images, categories, dates, descriptions, favorites, and custom fields.

⇄

Document detecting trips together & share finds

Detecting together? Share complete detecting trips or selected finds with your detecting partners directly through your own Google Drive. You decide whether find images, coin data and images, GPS locations, GPS source photos, optimized detecting routes, or tenant/owner information are included.

No ThatsLog server or other external server stores the shared data
Recipients see shared finds alongside their own finds and maps
Shared data remains read-only for recipients

Your data

Stored locally, synchronized your way

There is no central find database that requires you to hand over your data.

Locally on your device

Your finds, field trips, settings and images are stored directly on your phone, tablet or computer.

Synchronize devices

Use Google Drive for convenient device synchronization, or ZIP migration if you want to work completely offline.

Detect together & share without a central server

Shared detecting trips and finds run directly through your own Google Drive. Shared finds are not uploaded to a ThatsLog server or any other external server; you choose the recipients and exactly which data is included.

Get started

Download the metal detecting app

For documenting finds on the go and editing them comfortably on a computer.

Android

For phones and tablets – ideal with GPSCam and detecting trips.

Google Play Store

IOS

For iPhone and iPad – ideal with GPSCam and detecting trips.

In development

Windows

Manage, complete, analyze, and back up finds on your PC.

Download ZIP

Tip: Create a complete backup regularly. Synchronizing devices does not replace a backup.

Fair and transparent

How ThatsLog is funded

All ThatsLog features remain free. Further development, testing, and ongoing operation are supported by voluntary contributions from the community and the specialist trade.

ThatsLog Supporter

With the optional Supporter package, you help fund further development, testing, and ongoing operation. As a supporter, you use ThatsLog without sponsor notices and can actively submit suggestions for integration into ThatsLog!

Voluntary support

You can also support ThatsLog with an amount of your choice via PayPal. All features remain completely free to use regardless.

Support from retailers

Metal detector retailers can help fund further development fairly. Their notices appear discreetly and never interrupt use.

The Supporter package is optional: no paywall, no paid features, and no restrictions on free use.

Questions from detectorists

Metal detecting app: common questions

What does this metal detecting app do?

ThatsLog is a find logging app for detectorists. It records photos, GPS locations and detecting routes, and helps you organize coins and other finds. Use a physical metal detector to locate objects; the app documents your discoveries.

Can I log finds without taking out my phone?

Yes. Start a detecting trip and keep your phone in your pocket. ThatsLog detects search stops automatically. Afterwards, select relevant stops in Track Lab and create find records with their time and GPS location.

Is the app free and can I use it offline?

All features are free and no ThatsLog account is required. Find data is stored locally and can be used offline. Online services such as map downloads, Numista imports and Google Drive synchronization need an internet connection.

Which devices can I use?

ThatsLog is available for Android phones and tablets. A Windows beta is available for managing finds on your PC. The iPhone and iPad version is in development.

Can I manage coin finds and export detecting routes?

Yes. Organize coins and coin types, import Numista data, view find locations on maps and export detecting trips as GPX. PDF exports let you document and share selected finds.

Want to look up a feature?

The user guide takes you step by step through recording, detecting trips, Track Lab, imports, maps, and backups.

Open user guide

Metal detectingapp.