LIGHTS OUT · GO GO GO
●Undercut Verstappen · +3.1s to Leclerc●S2 purple · 31.104●Tyre window optimal — 2 laps●ERS 4MJ deployed●Brake temp 520°C FR●Pit loss 22.4s · Spa●Gap ahead +1.2s · closing●Fuel saving target: LAC zone 2●Undercut Verstappen · +3.1s to Leclerc●S2 purple · 31.104●Tyre window optimal — 2 laps●ERS 4MJ deployed●Brake temp 520°C FR●Pit loss 22.4s · Spa●Gap ahead +1.2s · closing●Fuel saving target: LAC zone 2

F1 25 · iRacing · ACC · Le Mans Ultimate

S01 · L 14/58

YOUR
RACE
ENGINEER.

Reads live telemetry from your sim and delivers the same calls a real race engineer makes — tyre windows, ERS deployment, pit strategy, undercut timing. Under 120 MB RAM. Zero FPS impact.

Download Betav0.1.6 · WIN↓Early Access →
Windows 10/11 · 64-bit · Auto-updates
<120MB
RAM
0FPS
Impact
<80ms
Latency
4SIMS
Supported
§ 01 · What it does

Real race
engineering.
For every sim racer.

Apex Engineer sits quietly in the background, reading every byte of UDP telemetry your sim publishes. It thinks like a race engineer — tyre temps, fuel load, battery state, brake wear, track conditions — and gives you the one call that matters, right when you need it.

▲Tyre compound math
▲Pit-window timing
▲ERS deployment
▲Fuel saving deltas
§ 02 · On Track

Every situation
a race throws at you.

All scenarios →
Safety Car
01/06

VSC & Safety Car

Pit-window math, delta timing, and rejoin strategy called instantly.

↗ Radio call~80ms
Tyres
02/06

Tyre Degradation

Real-time deg curves and cliff predictions per compound.

↗ Radio call~60ms
ERS
03/06

Battery Deployment

Per-corner deployment strategy and overtake-mode timing.

↗ Radio call~40ms
Weather
04/06

Wet Tyre Calls

Crossover lap prediction for inters, wets, and drying lines.

↗ Radio call~70ms
Fuel
05/06

Fuel & Lift-and-Coast

LAC zones and fuel-saving deltas to make the stint.

↗ Radio call~60ms
Strategy
06/06

Undercut & Overcut

Live undercut/overcut math with gap-to-car thresholds.

↗ Radio call~80ms
§ 03 · Engineering

Built like a
performance tool.
Not a chatbot.

Every millisecond counts. Every byte of RAM counts. Every call has to land before the apex, not after it.

F/01

Live telemetry

Reads every UDP packet your sim emits. Brake temps, tyre compound state, ERS charge, gap deltas — all live.

UDP · Realtime→
F/02

Thinks like an engineer

Not a chatbot. A decision model tuned on real race strategy rules.

Rule-engine→
F/03

Tauri-built

Under 120 MB RAM. No Electron bloat. No FPS impact on your sim.

Rust · Native→
F/04

Voice calls

Natural, short, radio-style calls — not walls of text. Toggle text overlay too.

Radio · TTS→
F/05

Setup advisor

Track-specific baseline setups and coach-level suggestions based on your driving style.

Per-track→
F/06

Session analysis

Post-session review with braking, racing line, and consistency feedback.

Debrief→

Radio check

BOX.
BOX.
BOX.

Get Apex Engineer at launch. F1 25 support first — iRacing, ACC, and Le Mans Ultimate on the way.

Download v0.1.6↓Early Access→
✓ F1 25 day-one✓ Under 120 MB✓ No FPS impact