Zero To Sixty HUD vs GPS Lap Timer

Zero to Sixty turns your iPhone into a performance timer. Whether you're testing a new car, tuning an old one, or just curious how quick your daily driver really is, Zero to Sixty uses your iPhone's GPS to measure acceleration with the precision of a dedicated drag-strip timer — no extra hardware required. Three classic performance tests, automatic timing: • 0–60 MPH — Arm the timer, mash the throttle, and the clock starts the instant you roll. It stops the moment you cross 60. • 0–100 KM/H — The metric standard, with the same auto-start launch detection. • ¼ Mile (1,320 ft) — Auto-start, with live distance tracking until you cross the finish line. Pick your units Switch between MPH, KM/H, and m/s on the fly. Choose raw GPS speed or a corrected mode that smooths GPS jitter for cleaner readouts at the launch line. Live Speedometer A big, easy-to-read speed readout with a smooth progress bar that color-shifts as you climb toward your target. Glance-friendly while focused on driving. Built for the road • True / magnetic compass heading with an 8-point readout (N, NE, E…) • Live top-speed tracker for every session • Best-for-navigation GPS accuracy • Screen stays awake so you never miss a launch • Dark mode by default — easy on your eyes day or night Customizable Settings A dedicated Settings screen lets you pick your preferred speed unit, switch between raw and corrected GPS, and choose whether to time the 0–60 MPH or 0–100 KM/H benchmark by default. Full Run History Every completed run is saved automatically. Browse, filter by type (0–60, 0–100, or ¼ mile), and review your elapsed time and top speed. Swipe to delete the runs you'd rather forget. Private by design Location data stays on your device. No accounts, no tracking, no ads. Important: Always have a passenger operate the app while driving. Use only on closed courses or legal stretches of road, and obey all local speed laws. Heads up: iOS provides GPS speed readings about once per second, so the live speedometer may briefly lag behind your actual speed. 0–60 and quarter-mile times still use precise GPS timestamps for accurate results.

• "GPS Lap Timer" is a lap timer app for racing circuits that utilizes the iPhone's GPS function. • Easily and accurately measure lap times and sector times using only your iPhone. No external GPS receiver is required. • The accuracy of a GPS lap timer is not determined solely by the GPS update frequency. This app achieves highly accurate lap time measurement through its unique measurement logic. • Approximately 10,000 measured lap times are saved and can be viewed and shared. • Enjoy a fulfilling racing life with this app! (How to use) Please see "https://gpslaptimer.blogspot.com/2026/08/gps-lap-timer-free-ios-app.html”. You can also access it from “Settings” → “User Guide” in the app. (Measurable circuits) Planned to be added. Please let us know if you have any requests. Please also report any bugs or issues. (Australia) Sydney Motorsport Park (Brabham, Gardner GP, Druitt North) Sydney Motorsport Park Amaroo South (Canada) Calabogie Motorsports Park CTMP Driver Development Track CTMP Grand Prix Track CTMP Karting Track (CCW) CTMP Karting Track (CW) Toronto Motorsports Park (CCW) Toronto Motorsports Park (CW) (France) Circuit Paul Ricard (Gernany) Nürburgring Nordschleife Nürburgring Nordschleife (BTG) (Japan) Please see “https://gpslaptimer.blogspot.com/2026/08/list-of-japanese-circuits.html”. (Malaysia) Sepang International Circuit (Taiwan) Lihpao G2 Circuit (Thailand) Chang International Circuit (United Kingdom) Oulton Park Circuit Silverstone International Circuit Silverstone Grand Prix Circuit Silverstone Stowe Circuit Silverstone National Circuit Donington Park Circuit Brands Hatch GP Circuit Brands Hatch Indy Circuit (United States) Blackhawk Farms Raceway BRP Kart CCW1 BRP Kart CW1 BRP Race CCW1 BRP Race CW1 BRP Race CCW2 BRP Race CW2 BRP The Circuit CCW (Buttonwillow Raceway Park) BRP The Circuit CW (Buttonwillow Raceway Park) Laguna Seca Road America Sebring Raceway GP Road Course Sonoma Raceway Summit Point Motorsports Park (Main) Summit Point (Jefferson Circuit CCW) Summit Point (Shenandoah Circuit CCW) VIR Grand∙Full Course VIR North Course VIR South Course VIR Patriot Course Waterford Hills Road Racing The developer assumes no responsibility for any accident, violation, loss or claims by third parties which may arise from the use of this app. Terms of Use: This application is provided under the Apple Standard End User License Agreement (EULA). https://www.apple.com/legal/internet-services/itunes/dev/stdeula/