SpeedBox Performance Tracking vs Track4Facts PRO

How fast is your car, really? SpeedBox times acceleration runs like 0–60 mph or the quarter mile, automatically via GPS and with nothing but your iPhone. Tap start, drive off, done: Timing begins on its own as soon as you pull away and stops at the finish. No stopwatch, no passenger needed. You keep your full attention on driving. WHAT YOU GET • Hard numbers instead of gut feeling: real performance data for your car • Compare before and after, following a tune, new tyres or a software update • Several runs back to back without resetting anything, ideal for track days and club racing • Every result saved, with date, distance, elevation change and slope • Compete with drivers worldwide: your best times go to the Game Center leaderboards • A fraction of the price of professional GPS timing devices NEW IN VERSION 3 • New measuring screen with a large gauge, easy to read in a mount, in landscape too • Live comparison: while you drive, you see whether you're ahead of or behind your personal best • A speed curve for every run, and two runs side by side • Your route on a map • More times from every run, such as 0–30 mph or the 1/8 mile, plus acceleration in g if you want it • Video with your numbers: every run is saved to Photos as a clip with speed, time and result • Weather for every run: temperature, air pressure and density altitude • Speed and time on the Lock Screen, in the Dynamic Island and in CarPlay MEASUREMENTS • The classics: 0–60 mph, 30–70 mph, 60–100 mph, 0–100 km/h and many more • Distances: 150 m, 1/8 mile, quarter mile, 1/2 mile and 1 mile • Special modes: drag race, Rolling 50 and top speed • Choose mph or km/h • Favorites and recently used modes always at hand COMFORT • Start countdown and sound signals at the start and finish • Two designs: Track (dark, for your mount) and Classic (light) • Slope compensation: fair, comparable results even uphill or downhill • Apple Watch: status, speed, time and result at a glance, start and stop timing right from your wrist • Adapts automatically to your iPhone's light or dark appearance • VoiceOver announces the start and the result EVEN MORE PRECISE An external 10 Hz Bluetooth GPS receiver makes timing considerably more accurate. SpeedBox supports the XGPS160. HOW IT WORKS 1. Check GPS reception (top right, e.g. "GPS ±16 ft") 2. Choose a mode at the top left, e.g. 0–60 mph 3. Tap "Start measurement" 4. Drive off, SpeedBox times you automatically Questions, ideas or requests for more modes? Write to support@speedboxapp.de or visit us on Instagram: @speedboxapp Please don't use this app on public roads, only on closed race tracks! Note: Continued use of GPS running in the background can dramatically decrease battery life.

Track4Facts PRO turns your iPhone into a GPS driving recorder for sprint, distance, lap and sector times. Compare drives with maps, charts and sensor analysis. Video Studio in the full version lets you film your drive and overlay recorded driving data. Download for free and measure 0–100 km/h or 0–60 mph. Unlock the full version with a one-time purchase. No subscription. Previous buyers of the paid app keep the full version, including Video Studio. FREE FEATURES • GPS speedometer and drive recording with speed, distance, duration, altitude and stops • 0–100 km/h or 0–60 mph sprint timing, depending on your unit settings • iPhone sensor fusion for suitable standard sprints • Background driving data recording, Live Activity on the Lock Screen and Dynamic Island • Maps, drive summaries and history • One vehicle profile in the garage • Sprint start/stop via Siri, Shortcuts and the Action button on supported iPhones • Apple Watch remote control and optional heart rate recording • Import existing Track4Facts backups FULL VERSION — ONE-TIME PURCHASE • Video Studio: film drives, overlay driving data, design and export clips • Custom sprint ranges from a standstill or rolling start • Sprint comparisons across drives and vehicles with overlaid speed curves • Distance timing with splits, finish speed and custom targets • Automatic lap and sector timing with live delta to your best lap • Draw tracks, record them with a mapping lap or import GPX and GeoJSON • Edit track points, driving direction, start/finish and sectors • Lap comparisons, corner analysis, braking and deceleration profiles • Theoretical best time, lap consistency and ghost lap replay • G-circle, cornering dynamics and vibration analysis • Interactive 3D track, elevation profile, drive replay and measurement charts • GPX, waypoint CSV and motion CSV export • Full backups, multiple vehicle profiles and external GPS • Lap timing start/stop via Siri, Shortcuts and the Action button VIDEO STUDIO — YOUR DRIVE WITH DRIVING DATA Film sprint, distance and lap sessions. Overlay relevant driving data: speed, route, G-forces, lap and sector times or saved best sprint and distance times. Customize the position, size and design of the displays. Select clips and export them as landscape or portrait MP4 files to save and share. Recording up to 4K, higher frame rates, slow motion and an additional driver camera depend on your device and settings. Audio is optional. Recorded Apple Watch heart rate can be overlaid with separate consent. Camera recording requires the app in the foreground. GPS + IPHONE SENSORS Sensor fusion adds motion data to suitable standard sprints. The iPhone must be securely mounted. Fusion is used only after checks pass; GPS remains available for comparison. Retrospective ≈ estimates are not confirmed best times. Motion data is stored at a nominal 50 Hz. APPLE WATCH AND EXTERNAL GPS Follow live data and control sprint recording from your wrist. Optional Race Training records heart rate with permission and saves a workout in Apple Health. Heart rate data in backups or CSV requires separate consent. External GPS: Dual XGPS150/XGPS150A, XGPS160 SkyPro and Dragy Lite (10, 20 or 25 Hz). More data points do not guarantee greater accuracy. RESULTS AND SAFETY GPS and sensor fusion provide estimates without guaranteed timing accuracy. Track4Facts PRO is not a calibrated measuring instrument. Each drive retains its measurement configuration. Take performance measurements only on private, closed or expressly authorized tracks and areas. Mount your phone securely, set it up before driving and do not operate it while driving. Observe laws, safety rules and the rights of people filmed. Only import permitted track data and comply with license terms.