Hear where the fast lap brakes.
GhostChaser reads Gran Turismo 7's telemetry straight off your PS5, sixty times a second, and plays this week's reference lap as tones in your ears while you drive: pitch follows pedal pressure, and beeps count you into the braking zones. Your own inputs draw against the reference's on screen.
Hearing the reference lap is free, forever. Your first 30 days of everything are too.
PS5 and Gran Turismo 7, an iPhone on the same Wi-Fi, and nothing else. No capture card, no PC.
Coming soon
The debrief: why, corner by corner
The app in the car answers where — where the reference brakes, and what your line is costing right now. The next GhostChaser answers why: it records the session, and a few minutes after you park it you read a per-corner debrief measured against the same reference lap — what each corner cost, and the cause, worked out from your own laps rather than a textbook's.
Also coming: support for GT7's online Time Trials, with curated reference laps next to the Daily Races.
In testing now. No date yet, and nothing else on this page depends on it.
By ear
A tone tracks the reference lap's pedals, pitch rising with pressure. Two beeps count you into the braking zones, one about two seconds out and one about a second out, timed at the speed you're actually carrying. Your eyes never leave the TV.
On screen
Brake and throttle panels drawn corner by corner: the reference trace with a cursor riding your position, your trace laid over it, entry, apex and exit speeds against the reference's. A running delta says what the lap is worth so far.
Every Monday
Reference laps are curated for the week's three Daily Races — each one a real lap by a named driver, in a car eligible for that race. The rotation turns Monday morning and the app follows it.
Hear the brake point, see the gap
A tone tracks the reference driver's braking and two beeps count you into the zone, while the same lap is drawn against yours on screen. The gap between the two lines at the brake point is the gap in the lap time.
A real session, mid-corner. The reference lap braked once, in yellow. The driver braked twice, in blue, and the delta above the trace shows what the lap has paid for it so far. That mismatch is what the tones put in your ears — one ear per driver — while your eyes stay on the TV.
The whole path, from download to the first braking zone → How it works
This week's races, on their own page →
What you need
- A PS5 running Gran Turismo 7.
- An iPhone on the same home network as the PS5.
- Nothing else. No capture card, no PC.
GhostChaser is not affiliated with Polyphony Digital or Sony Interactive Entertainment. Gran Turismo is their trademark.