The iPhone-first motorsports platform
TRACK. Prepare. Perform. Improve. Connect.
Lap timing that works offline, video synchronized to telemetry, coaching that cites its evidence, and a second screen that’s a real HUD — built for track days, time attack and club racing.
01TRACK Drive
Mount it. Drive. Every lap, timed.
Your iPhone becomes the lap timer, data logger and onboard camera. Scroll to drive a real lap from our simulator. The timing engine is the same one that runs in the app.
2:06.106
- 01
Mount & calibrate
Stick the phone to the windshield. TRACK solves its orientation from motion, so calibration finishes while you roll out of the pits.
02Synchronized video + telemetry
Broadcast-grade onboards. From your phone.
The forward camera and every sensor share one clock, so the overlay is cut to your footage, not dragged into place afterwards. And it only shows what was measured.
- 1LAU2:06.106
- 2SIL+0.000
- 3HAD+1.827
- 4BRA+4.621
- 5ITO+4.915
- 6PAR+6.252
- 7NOV+8.411
- 8OKA+8.833
- 9MOR+16.494
Adds RPM and the ECU’s throttle-plate reading at a few Hz. Gear is INFERRED from RPM and speed. Brake pressure is not on OBD-II, so it stays NO SOURCE.
Simulated onboard. No footage. Speed & delta from the fixture lap; RPM and throttle from a labelled demo model.
One clock.
±8 ms.
Every sample is stamped on the iPhone’s host clock at the moment it arrives. Camera frames already carry that clock, so video and telemetry line up to about half a frame at 60 fps. External GNSS is aligned to the same clock, and the app reports how uncertain that alignment is.
03TRACK Engineer · AI coaching
Coaching that shows its working.
Every number the Engineer says points to a measured fact. If it can’t cite it, it doesn’t say it.
- 01
Measure
Deterministic code turns the session into laps, sectors, corner speeds and braking estimates, each with its uncertainty. No AI involved yet.
- 02
State the facts
Every measurement becomes a numbered fact with its provenance: observed, inferred or simulated. Braking without a brake sensor is always marked inferred.
- 03
Coach with evidence
Coaching is written from those facts only. A grounding check rejects any number that doesn’t appear in a cited fact.
Ask the Engineer
Ask in plain language. Answers quote the session’s facts, and the Engineer works offline in the pits. It also says no: it won’t invent data, and it never touches your ECU.
- ▸Offline answers: built and tested
- ▸Cloud Engineer: beta, with a cost ceiling and grounding guard
Pick a question to see a cited answer
04TRACK Dash · second screen
A second iPhone becomes your HUD.
Not screen mirroring. Your spare iPhone or iPad runs its own dashboard, in its own layout and units, from an encrypted link to the phone that’s recording. It works without internet.
Numeric comparison
A 6-digit code on both screens, confirmed on the recording phone. Nobody nearby can slip in.
Encrypted end to end
X25519 key agreement, ChaCha20-Poly1305 frames, counter nonces and replay rejection.
Resumes on its own
If the link drops, it reconnects without re-pairing. Stale data is flagged, never frozen silently.
No internet needed
Local Wi-Fi or peer-to-peer, so it works in a paddock with no signal.
05TRACK Connect · hardware
Start with your phone. Add hardware when it pays off.
We list exactly what works today and what doesn’t. No universal OBD claims. If a device hasn’t been tested on real hardware yet, we say so.
- ANothing to buy
iPhone only
- GPS ~1 Hz · IMU up to 100 Hz · cameraBuiltBuilt-in. On-device validation pending
- BRoad-car engine data
OBD-II adapters
- ELM327-compatible BLE adaptersDevice-dependentWorks only with documented BLE services; results shown per device
- ELM327 Wi-Fi adaptersIn development
- OBDLink CXPlannedPending vendor documentation
- OBDLink MX+PlannedNeeds vendor approval for iOS
- Classic-Bluetooth ELM327 clonesNot supported on iOSiOS does not expose Bluetooth serial
- C10–25 Hz position
Precision GNSS
- RaceBox Mini / Mini SAwaiting hardware validationDecoder built from the published protocol
- DRead-only gateways
Pro CAN / ECU
- Motorsport CAN gatewaysPlannedRead-only, user-mapped channels. Never writes to an ECU
- EExtra angles
Camera nodes
- Spare iPhone as a camera nodePlannedRecords locally, transfers after the session
OBD-II reports RPM, speed and temperatures at a few Hz per value. Its “throttle position” is the ECU’s throttle-plate reading, not your pedal, and TRACK labels it that way. Product names describe compatibility only and imply no partnership or endorsement.
25 Hz ≠ accurate.
Sample rate is how often you get a position. Accuracy is how close each one is. A fast receiver with poor accuracy is still off, just more often. TRACK reports both, and every lap carries its own timing uncertainty.
- Phone 1 Hz
- 0.037 s
- median lap-time error
- External 25 Hz
- 0.007 s
- median lap-time error
Simulation benchmark vs. simulated ground truth · not yet validated on track
06Garage & Life
Every car. Every setup. Every event.
Your cars are first-class, not an afterthought. Setups, tyres, maintenance and packing lists live with the car, and each session links back to it.
The weekend coupé
Rear-drive coupé
Cascade Ridge · dry
Your numbers, recorded by you. TRACK stores setups and compares sessions; it never tells you what’s safe to run.
Downloads a real calendar file for this fictional event. Event listings from organizers need partner agreements and are planned.
07Privacy & safety
Fast. Not reckless.
Private by default
Sessions, video and locations stay yours. Nothing is shared, published or broadcast unless you choose to share it.
Consent you can revoke
Every share and every broadcast is an explicit grant with a history. Revoke it and it’s enforced on the server too.
Offline timing
Timing, recording and the Engineer’s offline answers need no signal. Recordings survive crashes and dead batteries.
No ECU writes. Ever.
TRACK only reads data. It never changes engine, ECU or vehicle settings, and the Engineer won’t suggest tuning.
HPDE-friendly
No rewards for aggressive driving. Track days rank fastest laps, never race positions. Comparisons are fair: same layout, similar conditions.
Track use only
Minimal interaction while moving, alerts that are calm by design, and nothing that replaces marshals or race control.
08TRACK Live · for organizers
Your track day, on TV.
Every car’s camera and timing become one channel with real broadcast graphics, on the venue screen, a share link and the app. Behind the scenes an autonomous director picks the moments and cuts between cars. You just press Go Live.
Who it’s for
One platform. Whole paddock.
Be first
on the grid.
TRACK is in development. Join early access for the TestFlight beta (coming soon), early organizer pilots and founding pricing.