Works with RaceChrono, RaceBox & more

Every lap, every setup, every track day — in one place.

Drop your RaceChrono export or RaceBox CSV. ApexLog reads your sessions, links them to your setup and YouTube onboard, and tracks your PBs across the season.

Start with a RaceChrono import See live sample session

Opens a public session — no account, no download.

Free during beta
Private by default
Mobile-first interface for use at the track

track days imported

319

laps logged

167

tracks recognized

RaceChrono + RaceBox

telemetry formats

What You Get

Five arguments the RaceChrono mobile app doesn't cover — from a single lap, through the season, to a head-to-head between two cars.

In-browser telemetry

Racing line, speed, longitudinal G — lap by lap on a big screen.

After a RaceChrono or RaceBox import you get what no mobile app shows: a racing line coloured by speed or longitudinal G (derived from GPS speed), speed and G traces under the map, and a lap strip colour-graded from fastest to slowest. Pick a lap from the list on the left, the view zooms onto that loop.

Setup history

Pressures, alignment, springs — in lap-time context.

Log the setup for every session. Compare what changed between runs and see how lap time reacted. No Google Docs, no paddock photos.

Consumables mileage + proof

Pads, tires, discs — mileage calculated for you, every swap with a photo.

Log the install date, ApexLog adds up the kilometres from your sessions. Front and rear axle separately. You know there are two track days left on the pads — before the last session of the day. Every service entry can carry a photo: caliper after the season, tire showing wear marks, disc seal. The car's history stays with you, even when the car doesn't.

Lap progression

The season, session by session — what actually made you faster.

Lap-time chart across track days. See whether the gain came from track knowledge, a setup change, or new tires. Real data, not a mockup.

Open the live progression sample ↗

Car vs car comparison

Two cars at the same track — was it you, or was it the car?

Stand two cars side by side on the same circuit. Lap-time chart on a shared timeline, per-session delta strip, interleaved session table. When you want to, generate a public share link and send the comparison straight to a friend — no login on their side.

Plus the rest — in the app

RaceChrono .rcz / CSV v3 import
RaceBox CSV import
Preview before import
YouTube onboard at the lap
At-track notes
Public session share links
Track Mode
Track auto-detect from GPS

Why not just RaceChrono?

RaceChrono is great for recording and analyzing a single session. ApexLog is for the long-term history around it — track days, setups, consumables, mileage and progress across the season.

RaceChrono

– Recording laps, GPS, OBD, video
– In-session analysis: speed, throttle, brake traces
– Lap timing and per-session comparison

ApexLog

✓ Multi-session, multi-track-day history
✓ Setups linked to sessions and laps
✓ Consumables mileage (pads, tires, discs) per car
✓ Season-long progress per track and per car
✓ Public session share links

RaceChrono records and analyses the session. ApexLog keeps the season history.

See how RaceChrono import works →

Frequently Asked Questions

Is it free?

Yes. During beta, all features are free with no limits. Pricing launches later — early users get a loyalty discount.

What telemetry formats are supported?

RaceChrono .rcz files, RaceChrono CSV v3, and RaceBox CSV. More formats are on the way.

Can I use it without telemetry?

Yes. You can create track days, sessions, and laps manually. Telemetry import just makes it faster.

Is my data private?

Yes. All your data is private by default. You can optionally share individual sessions via unlisted links.

What languages are supported?

English and Polish.

Next track day — already in your logbook.

One import = the whole season in a single view. No spreadsheet, no notes app.

Create your account See the sample first ↗