Track days and training

Lap timing for everyone,
at every track day and training

Time your laps with your phone or your laptimer, see where you lose time and compare yourself with the other drivers. Free, for track days and training.

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Made for track days and training

Karting, cars or motorbikes: every lap timed, understood and shared, without expensive equipment.

For drivers

Karting, car or motorbike: time your laps, see where you lose time corner by corner, compare yourself with the other drivers and share your sessions. Free.
For mechanics and engineers

Read the data of every logger, compare sessions and setups channel by channel, compute your own channels and note the setup of each run. Free, in the browser.
For coaches

Gather your drivers in a team, see their sessions whatever their laptimer, compare them corner by corner and share your debriefs. Free for coaches and drivers.
For team managers

All the sessions of your drivers in one place, live timing from the pit wall, private competitions and sharing you control. Free for kart, car and bike teams.
For organisers and clubs

Live timing without transponders, time attack competitions on any circuit and the lap records of your track: free tools for clubs, organisers and circuits.
For parents

Time your child from the side of the track, let the family follow the session live, see the progress circuit after circuit and share it with the coach. Free.

Everything you need to go faster

Your phone is a lap timer

The free LapViz app finds the circuit, times every lap and sector, shows a live predictive delta against your best lap and says your time at the line.
Discover the app →
Every laptimer, one place

AiM MyChron, Alfano, Unipro, GoPro, GPX, RaceRender, CSV and the LapViz apps: send your files as they are, LapViz recognizes the format.
Supported formats →
Understand every lap

Ideal lap, mini-sectors, corners, braking points, speed and G-force traces: see where the time is lost and what to change at the next session.
Circuit leaderboards

Lap records per category, corner guides and the progress of the drivers on each karting and racing circuit.
Browse the circuits →
3D replay and video overlay

Replay your session in 3D on the satellite view of the circuit, or add telemetry gauges to your on-board video.
Try it with your file →
Teams, coaches and competitions

Share your sessions with your coach, follow your team-mates and run time attack competitions on any circuit.