Trax: Dog Tracking Log
GPS logbook for scent work
Only for iPhone
$9.99 · Designed for iPhone. Not verified for macOS.
iPhone
New in 2.0: article search, area search, night mode, blood tracking, blind tracks, cross tracks and spoken alerts. Free update if you already have Trax.
Trax is a GPS logbook for tracking dog training.
First, the track layer walks the route and drops items along the way. Trax records the track and marks every item on the map. Later, the dog follows the scent trail with its handler, and Trax records that too. When you are done, you see the laid track and the dog's route together on one map, with track age, distance, finds and the weather.
LAY A TRACK
• Record the route with GPS while you walk
• Tap Marker to drop an item at your exact position
• Choose the track type: track, IGP track, blood track or search
• Lay cross tracks: a fresher track that crosses the main track
• Add notes about terrain, conditions or anything else you want to remember
RUN THE TRACK
• Choose the dog when you start, so every session is saved to the right dog
• See the countdown until the track has the right age, also on the Lock Screen
• Get an alert near an item or a crossing track, and when you lose the track
• Spoken alerts in AirPods or the speaker, even with the screen locked
• Lock the screen and keep the phone in your pocket: a Live Activity on the Lock Screen and in the Dynamic Island shows the track and has Pause and Found buttons
• Walk blind: the laid track and the items stay hidden until you stop
• Night mode with red light, so you keep your night vision
• Standard map, topo or satellite
SEARCH
• Article search and area search: draw the field or area on the map, or pick a ready-made size
• Place items and people, and see the time to each find
• Optional time limit with an alert when one minute is left
BLOOD TRACKING
• Shot site, flight direction, wound bed, blood stop and game
• Amount of blood, tracking shoe or hoof, and track age up to 48 hours
• Turns in the track are counted automatically
SEE THE RESULT
• Both routes on one map, with found and missed items
• Play back the track and watch the dog's route over the laid track
• Deviation from track: see how closely the dog followed it
• Track age, distance, time, wind and weather for every session
• Give a rating, difficulty and learning point after every track
• Filter completed tracks by dog and follow progress over time
• Trim the start or the end of a track
SHARE AND EXPORT
• Share your track on social media, laid over your own photo
• Send a track to another Trax user, for example when one person lays the track and another runs it
• The track layer does not need an iPhone: lay the track in any GPS app that saves GPX, with waypoints for the items, and run it in Trax
• Export to PDF, per track or as a report per dog
• Export and import GPX files
LANGUAGE
Trax is available in English, Norwegian and Swedish, and follows the language on your iPhone.
PRIVATE BY DESIGN
No account, no login and no ads. Your tracks are stored on your iPhone, with a backup in your own iCloud Drive. GPS is used only while you are recording.
Made by a police dog handler for handlers, instructors and anyone who trains tracking, whether for fun, competition or working dogs.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Trax 2.0 is a big update, and it is free if you already have Trax.
NEW IN 2.0
• Search: article search and area search. Draw the field or area on the map, place items and people, and see the time to each find. Optional time limit with an alert.
• Night mode: a dark screen with red light while you lay and run a track, so you keep your night vision.
• New map menu with standard map, topo, satellite and night mode.
• Spoken alerts in your ear, even with the screen locked: nearby item, crossing track, track loss and blood stop.
• Blind track: the laid track and the items stay hidden until you stop.
• Cross tracks: lay a fresher track across the main track and get an alert before the crossing.
• Blood tracking: shot site, flight direction, amount of blood, tracking shoe or hoof, track age up to 48 hours, and alerts for blood stop and blood resumes. Turns are counted automatically.
• Deviation from track: see how closely the dog followed the track.
• Wind and weather when the track starts, with a wind arrow on the map.
• Assessment after every track: rating, difficulty and a learning point. Follow each dog's progress in a chart.
• Share your track on social media, laid over your own photo.
• Edit a track: trim the start or the end.
• Track age countdown on the Lock Screen.
• Automatic backup to your own iCloud Drive.
• Trax is now also available in Swedish.
• New design for the home screen, the tracking screen and the track details.
The developer, Silje Langtind Tillerflaten, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Silje Langtind Tillerflaten
- Size
- 14.3 MB
- Category
- Sports
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
English and 2 more
- English, Norwegian Bokmål, Swedish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Silje Tillerflaten

