Accel Timer vs ZeroTo

Accel Timer is a GPS performance timing app built for drivers, riders and anyone who wants clear, repeatable run data. Measure acceleration and distance runs with live speed, G-force telemetry, countdown starts and GPS-based timing. Choose between automatic movement detection, custom speed ranges or countdown starts, then review your best results in a clean history view. Use the live map to follow your route, switch between map styles, and record your runs with the optional camera mode. Share polished summary cards showing your time, distance, speed and altitude difference. Perfect for 0–100 km/h, 0–60 mph, 400 m, 1/4 mile, custom speed ranges, cycling sprints and running distance tests. Key features: • GPS speedometer with analog gauge styles • Real-time G-force telemetry • 0–100 km/h, 0–60 mph and custom speed timing • Distance runs from 100 m to 5 km • Countdown, movement or speed-threshold start methods • Live Mapbox route view with map, satellite and hybrid styles • Optional camera preview and run recording mode • Local run history with best results • Clean share cards for posting your runs • Flexible settings for units, timing, sounds, layout and video behavior Accel Timer helps you test, compare and share performance runs without clutter.

Time your car's 0-60 mph, 0-100 km/h and quarter mile with the iPhone you already have. No GPS box to buy. Mount the phone, stop, and wait for "Ready". Launch when it's safe. The timer starts and stops by itself, and short beeps tell you what's happening, so you never touch the phone while driving. Want the drag-strip feel? Turn on the start tree: staging lights, ambers and green, with time to spool the turbo first. HOW IT STAYS ACCURATE GPS reports speed about once a second, which is too slow to catch a launch. ZeroTo also reads the motion sensors 100 times a second. They pick up the moment the car starts to roll and fill the gaps between GPS readings. GPS, in turn, keeps the speed from drifting. EVERY RUN SHOWS - 0-60 mph, 0-100 km/h, 1/8 and 1/4 mile with trap speed - Road slope from the barometer: uphill, downhill or level - A quality grade, so you know which times to trust - Speed and acceleration charts - Gear shifts: how long each one took and what it cost you - A comparison with your previous run in the same car - A map of where you ran, and a map of all your runs SHARE WITH FRIENDS Turn a result into a card for Instagram Stories or any chat. APPLE WATCH Start, stop and follow the run from your wrist. FREE AND PRO Accuracy is the same for everyone. The free version times the classics above with no limit on runs. ZeroTo Pro is a one-time purchase, not a subscription, and adds: - 60-130 mph, 100-200 km/h, 0-200 km/h, 60 ft, 1/2 mile and rollout times - Every gear shift in detail, compared run to run - A garage with any number of cars and notes for each tune - Unlimited history and CSV export - Share cards without the ZeroTo mark PRIVACY No account, no ads, no tracking. Your runs stay on your iPhone. Use ZeroTo only on closed roads or tracks where it's legal, and follow traffic laws. Terms of Use: https://xzot.github.io/zeroto/terms.html Privacy Policy: https://xzot.github.io/zeroto/privacy.html