Track-day lap timer & logbook

Time your laps. Keep your logbook.

Laps is a lap timer and driving logbook for closed-course track days and HPDE (high-performance driver education) events. Start a session, get a live heads-up display, and let your phone's GPS time every lap — then look back on your cars, setups, and personal bests.

Download on theApp StoreComing soonGet it onGoogle PlayComing soon

For use at closed-course, off-public-road driving events only. Never interact with the app while driving.

Everything you need on a track day

Free to start. No fake data, no fluff — just your own sessions.

Live HUD

A clean heads-up display while you record: current lap, running time, and speed, sized to read at a glance between corners.

GPS lap timing

Laps detects the start/finish line from your phone's GPS and times each lap automatically — no beacons or extra hardware to set up.

Beat your own best

Every session is compared against your personal best on that track, so you can see where you're finding — or losing — time.

Garage & setup history

Keep a logbook of your cars and the setup notes that went with each session, so you remember what actually worked.

Laps Pro

Go deeper when you're ready

An optional subscription for drivers who want the full picture. Everything above stays free; Pro adds the analysis tools.

  • Full lap analysis & telemetry — speed and g-force traces mapped to the track, corner by corner.
  • Unlimited garage — track as many cars and configurations as you run.
  • Driver comparison — overlay two laps to see exactly where the time goes.
  • Lifetime stats — your complete history across every track and season.