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RaceLab Apps

RaceLab Apps screenshot or logo
Pricing: Free Basic plan; Pro subscription for advanced overlays Platform: Windows Best for: Drivers who want polished overlays with a generous free tier

RaceLab Apps is a modern overlay suite for iRacing, offering customisable standings, relative, fuel calculator, radar, and more. A free tier covers the basics; Pro membership unlocks additional overlays. Works with iRacing, Assetto Corsa Competizione, rFactor 2, and other sims.

Key Features

  • Standings, Relative, and Horizontal Standings overlays
  • Radar, Blind Spot Indicator, and Track Map
  • Fuel Calculator and Pitbox Helper
  • Session Timer and Weather overlay
  • Pro: Input Telemetry (pedal/steering traces)
  • Pro: Head 2 Head comparison overlay
  • Pro: Flat Map and Data Blocks
  • Works with iRacing, ACC, rFactor 2, F1

What It Does

RaceLab provides real-time overlays that display on top of your sim: live standings, relative gaps, fuel calculator, radar, track map, and more. The free Basic plan includes Standings, Relative, Horizontal Standings, Flags, Radar, Blind Spot, Track Map, Fuel Calculator, Advanced Panel, Session Timer, Weather, and Pitbox Helper. Pro adds Flat Map, Input Telemetry (pedal and steering traces), Head 2 Head comparison overlay, Data Blocks, and enhanced styling. Overlays are highly customisable—position, colours, fonts, and data shown. The app connects via the iRacing SDK and requires windowed borderless mode.

Pros & Cons

Pros

  • Generous free tier with core overlays
  • Highly customisable position, colours, and data
  • Pro tier adds input telemetry and Head 2 Head
  • Works with iRacing, ACC, rFactor 2, F1

Cons

  • Requires windowed borderless and Max Cars 63
  • Pro features require subscription

Setup Instructions

Download and run the installer from racelab.app. Before your first session: (1) Set iRacing to windowed borderless mode in graphics settings. (2) Set Max Cars to 63. (3) Set connection speed to 1 Mbit/sec or faster on the iRacing member site. Launch RaceLab before or during a session—overlays appear automatically. Use the RaceLab app to drag overlays into position, change styles, and toggle which data to show. Join the RaceLab Discord for support and updates.

Requirements: iRacing: windowed borderless mode, Max Cars 63, 1 Mbit/sec+ connection. Windows 10/11.

Download Links

racelab.app → racelab.app (main site) → RaceLab Discord →
Tip: Run iRacing in windowed borderless mode and set Max Cars to 63. These are required for RaceLab to work correctly.

Other overlays: Kapps, iOverlay, Joel Real Timing (JRT), SIMRacingApps, SDK Gaming Overlay , or all overlays apps.

Next Steps

Apps Hub — browse all app categories · FUSION Racing home — driver guides, track guides, and more