Speedy vs TrackTimer

Speedy turns your iPhone into a drag-strip timer. Just drive. Speedy detects your launch by itself, times the run, and saves the result — no buttons to press while you're accelerating. WHAT IT MEASURES • 0–60 mph / 0–100 km/h • 0–130 mph / 0–200 km/h • 60–130 mph / 100–200 km/h • 60 ft, 1/8 mile and 1/4 mile, with trap speed • Splits every 10 mph (20 km/h) BUILT FOR ACCURACY Speedy pairs GPS with your iPhone's accelerometer to pinpoint the exact instant you launched, instead of waiting for GPS to catch up. 0–60 is reported with the 1-foot rollout used at real drag strips, so your times line up with how cars are actually tested. An honest signal indicator tells you when conditions aren't good enough to trust a run — no fake numbers. EVERY RUN KEPT • Results saved automatically on your phone • Map and speed trace for each run • Altitude, temperature and density altitude recorded alongside • Share your best times to the leaderboard YOUR UNITS mph or km/h · °F or °C · feet or metres Questions or suggestions? Find us on Instagram or email

Turn your iPhone into a precision drag strip timer. Measure 0-60 mph, 0-100 km/h, and any custom speed range up to 400 km/h — no extra hardware needed. THREE MEASUREMENT MODES • GPS Only — Simple, reliable speed tracking • GPS + Accelerometer — Enhanced accuracy with motion sensors • Kalman Filter Fusion — Professional-grade precision rivaling dedicated hardware BUILT FOR THE TRACK • Custom speed ranges (0-60, 0-100, 100-200, or set your own) • Multi-lap session recording with split times • Live speed gauge with GPS and Fusion readouts • GPS signal quality indicator GLOBAL LEADERBOARD Compare your times with drivers worldwide. Upload your best runs and see how you stack up. VEHICLE PROFILES Save multiple vehicles and track performance for each one separately. DETAILED HISTORY Review every run with time, max speed, G-force data, and speed-over-time charts. Designed exclusively for drag strips, race tracks, and closed private areas. Download now and put your car to the test.