Track4Facts PRO: Drag & Track

Track4Facts PRO turns your iPhone into a powerful GPS driving recorder for sprint, distance, lap and sector timing. Download it for free and measure 0–60 mph or 0–100 km/h at no cost, for good. Advanced timing and analysis features are available with one single purchase. No subscription — ever.

FREE FEATURES • GPS speedometer and complete ride recording • Speed, distance, duration, average speed, top speed, elevation and stops • 0–60 mph or 0–100 km/h sprint timing • Background recording with the screen locked • Live Activity on the Lock Screen and Dynamic Island • Maps, Race Summaries and ride history • One vehicle profile in the Garage • Apple Watch remote control with optional heart-rate recording • Import existing Track4Facts backups

FULL VERSION — ONE-TIME PURCHASE • Unlimited custom sprint ranges from a standstill or while rolling • Distance timing with split times and finish speed • Metric, imperial and custom distance targets • Automatic lap timing on race tracks • Custom sectors with sector times and live deltas • Create tracks by drawing them on the map or driving a survey lap • Live comparison with your best lap • Detailed lap comparison with speed and time-delta charts • Corner-by-corner analysis of time loss, deceleration and corner speed • Theoretical best lap and consistency analysis • Braking analysis with deceleration traces and time impact • Friction-circle analysis using GPS and iPhone motion sensors • Interactive 3D telemetry and corner-dynamics analysis • Ride replay with position, speed, elevation and acceleration data • Speed, elevation and acceleration charts • GPX, waypoint CSV and motion CSV export • Complete backup creation • Multiple vehicle profiles • Support for external GPS receivers with up to 25 Hz

APPLE WATCH Start and stop regular ride recordings directly from your wrist while your iPhone stays securely mounted. View speed, distance, duration, top speed and completed sprint results. Optional Race Training records your heart rate, keeps the live Watch display active and saves the workout to Apple Health when Health access is granted.

EXTERNAL GPS Track4Facts PRO supports: • Dual XGPS150 and XGPS150A • Dual XGPS160 SkyPro • Dragy Lite with selectable update rates of up to 25 Hz Higher GPS update rates provide more position and speed samples per second for more detailed sprint, distance, lap and sector measurements.

RESULTS YOU CAN TRUST Track4Facts evaluates the GPS quality behind every measurement. It detects confirmed standstill, interpolates measurement thresholds and checks for GPS gaps, poor accuracy and implausible speed changes. Unreliable attempts are marked accordingly instead of quietly displaying a result. Every drive retains its original measurement configuration, so changing your settings never rewrites previous results. The measurement methods and their limitations are documented inside the app. Track4Facts PRO is not a calibrated measurement instrument.

SAFETY NOTICE Performance, sprint, distance, lap and sector measurements must only be carried out on private, closed-off or expressly approved tracks and areas. Secure your phone safely before driving and never operate the app while driving. Use is at your own risk. Always comply with applicable laws and safety requirements.