Tap or volume buttons
Mark each lap without looking at the screen — eyes stay on the kart.
Find your lost tenths
Karting lap timer for drivers, coaches and teams
Time every lap from trackside with a tap or the volume buttons, run two drivers at once and pull sessions off your MyChron over Wi-Fi. Every personal best, on every track you race.
Free on iPhone · 9 languages
AiM MyChron 5 / 5S / 6 import over Wi-Fi
One driver or two at once
D → A+ class among WinLap drivers
Available on iOS
WinLap
Every lap timed. Every tenth counted.
Tap once per lap from trackside — or import the whole session from MyChron. WinLap keeps the laps, the conditions and your best on every track.
Race · Oct 25PR
54.1738/10 laps
Works today
What the WinLap lap timer does
Everything below is in the app on the App Store now.
Two drivers, one phone
Volume + times one driver, volume − the other. The same pair again in one tap.
MyChron import over Wi-Fi
Pull sessions off MyChron 5, 5S and 6 straight to iPhone: lap times, top speed and RPM. No laptop, no cable.
Your D → A+ class
A class among WinLap drivers on the same track and category, once enough of them have raced there.
Track and weather filled in
GPS finds the nearest circuit, and the conditions are saved with every session.
A clear session breakdown
Best, average, spread and top-3 average. Leave out a lap, add a note about the kart setup.
Personal best on every track
Your best lap on each circuit, marked as a personal best the moment you beat it.
Rivals you timed yourself
Time a rival from the fence and see the gap — they don't need the app.
Offline at the track, easy to share
The timer works without signal and syncs later. Share a session as an image or a link.
The WinLap family
One app for every part of race day
Start with the lap timer today. Team and Debrief are in testing with the first drivers, coaches and teams.
1Before
Coming soon
WinLap Team
The coach plans the race weekend; drivers mark their days in one tap.
Join the beta2At the track
Available on iOS
WinLap
Every lap timed, MyChron sessions imported, a personal best and a class on your track.
See the app3After
Coming soon
WinLap Debrief
Onboard video and telemetry turned into one clear task for the next session.
Join the betaComing soon
WinLap Team
Plan race weekends with the whole team
The coach creates the event and drops one link into the team chat. Each driver marks the days they're in. The coach sees drivers × days at a glance.
- One link — nobody needs to install anything
- Multi-day events: practice, qualifying, race
- The coach sees who is in, at a glance
Concept preview
Race weekend
Chorzów
Thu 1 – Sun 4 October
| Driver | Thu | Fri | Sat | Sun |
|---|---|---|---|---|
| Driver 1 | ||||
| Driver 2 | ||||
| Driver 3 | ? | |||
| Driver 4 |
Concept preview
Imagery: © ČÚZK, CC BY 4.0
Where you lose time
11Turn 11+0.128 s
9Turn 9+0.096 s
2Turn 2+0.090 s
Next session: one brake application into Turn 11.
Coming soon
WinLap Debrief
See which corner costs you time
Onboard video and telemetry, laid over the real track. Debrief finds where your lap leaks time, corner by corner, and gives you one task for the next session.
- Onboard video and telemetry on the real track map
- Time lost in each corner against your own best
- One task for the next session — checked next time
Beta
Help us build Team and Debrief
We're opening testing to a small group of drivers, coaches and teams.
- Early access on TestFlight
- A direct line to the people building it
- Your feedback decides what ships
The tester list opens soon.
Questions about the WinLap lap timer
Is WinLap free?
Yes. Download WinLap free from the App Store: time laps, import MyChron sessions, compare your laps and share them.
How do I get MyChron data onto my iPhone?
Turn on Wi-Fi on the MyChron, join its AiM network in iPhone Settings, tap "Use without internet", then download the sessions in WinLap. It works with MyChron 5, 5S and 6 — no laptop or cable.
Do I need a data logger?
No. Time laps by hand with a tap or the volume buttons; human reaction adds about ±0.3–0.5 s, so compare trends over several laps. For official results, use the circuit's timing.
Can I time two drivers at once?
Yes. Volume + records a lap for the first driver and volume − for the second; both lap lists stay in one session.
Does it work without internet at the track?
Yes. The timer works offline and saves the session on the phone; it syncs when you're back online.
When will Team and Debrief launch?
When they work for the first drivers and coaches testing them. No dates yet — the beta list opens soon.
Is there an Android app?
Not yet. Join the list and we'll tell you when it's ready.
By joining, you agree to receive launch updates via email. Unsubscribe anytime. Privacy Policy
Can junior drivers use WinLap?
Yes. WinLap is rated 4+; for drivers under 13 (under 16 in the EEA) a parent or guardian sets up the account. Data is used only for your own analysis and is deleted on request.
Your next tenth starts with the next lap
Free on iPhone · 9 languages