Razorline: OBD Track assistant

Faster, clearer track analysis: Razorline 1.0.2 smooths 4x replay comparison, refines live timing and starts, and improves speed traps and HUD controls.

Razorline brings GPS lap timing, vehicle telemetry and driving analysis together in a focused motorsport dashboard. Record a session with your iPhone, connect a compatible BLE OBD-II adapter when you want engine data, or use the built-in simulator with no external hardware.

TIME EVERY LAP • Create custom start/finish and sector lines on the map • Follow live lap time, delta, sector colors and theoretical best • Compare your current run with a saved ghost reference • Keep sessions, best laps and sector results organized by circuit and vehicle

UNDERSTAND THE DATA • Review speed traces, G-force, route position and available OBD-II channels • Compare laps and vehicles to see where time was gained or lost • Monitor compatible ELM327 data such as RPM, throttle and temperature • Read diagnostic trouble codes and test the telemetry flow with the simulator

BUILD, RECORD AND SHARE • Draw routes, record Tours and import GPX files • Replay sessions on the map and export CSV, GPX, VBO or NMEA data • Share Razorline challenges and Tour files with other drivers • Customize the HUD around the information you need

RAZORLINE PREMIUM Premium unlocks advanced ghost, replay, comparison, export and customization tools, together with expanded saved-content limits. Availability depends on the active App Store subscription shown before purchase. You can restore purchases and manage or cancel the subscription from your Apple account settings.

No account or login is required. Razorline is designed for closed circuits, track days, private roads and controlled environments. On public roads, obey local laws, keep your attention on driving and never interact with your phone while the vehicle is moving. Measurements are indicative and are not a substitute for certified instruments.

Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/