GPS Lap Timer vs LapTAR

• "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://ameblo.jp/miravan2008/entry-12980388291.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/

LapTAR turns your phone into a lap timer that coaches. It times every lap on GPS, shows the live gap to your own fastest possible lap, and tells you which corner — and which part of that corner — cost the time. TIME EVERY LAP Pair a RaceBox or Dragy GPS receiver over Bluetooth and drive. The track is recognised from where you are, the start/finish line is already drawn for the circuits in the library, and you can draw your own for a kart track or a hillclimb. THE GAP THAT MATTERS The delta on screen is not to your best lap. It is to your optimal lap — a physics simulation of what your car has proven it can do, on the best lines you have driven — so you are always chasing a time within your reach. CORNER BY CORNER Every corner is scored in four phases — braking, entry, apex and exit — against that optimal. Lights show where you gained and where you lost; the numbers sit underneath for later. A CO-DRIVER IN YOUR EAR At the line the voice calls the lap: a new best, or how far off. Pick a corner on the session's list and it is called through on every lap — "Next right. On my call." then brake, turn, power, full throttle, each word timed to land on your optimal lap's own point, the brake call earlier when you arrive faster. The corners you leave to the coach get the fix before — "Next left. Brake 30 metres later" — and better, worse or the same after. One to four corners a lap, your choice. When a corner goes wrong it says “Missed” at once and leaves the rest to you. Nothing to read at speed. ANALYSE IN THE PADDOCK Speed, delta and g traces per corner, laps drawn over the track on satellite imagery, and trends across sessions. Log the surface and your setup sheet with every session; the tyres and alignment the car was on that day stay with it, so a change in the garage never rewrites an old lap. VIDEO OVERLAY Export a lap as a data overlay — lap time, delta, speed, corner lights — ready to drop onto your camera footage in CapCut, DaVinci Resolve or Premiere. ENGINE DATA Add a Bluetooth LE OBD adapter for RPM, throttle and more, recorded alongside the GPS. Practising at home? LapTAR also takes Assetto Corsa telemetry straight from the game. FREE, AND LAPTAR PRO Your first track day is on Pro: everything on, all day. After that, Free records the first ten minutes of each session, or the first five timed laps when those take longer — counted down on the live screen, with the coach on one corner a lap; the session is kept like any other. Importing from other apps is free with no limit. LapTAR Pro, an optional in-app purchase (monthly or lifetime), records the whole session, every session; remembers the track (your best ever lap as the live reference, trends across sessions, earlier setups, laps from other days to compare); coaches up to four corners a lap and calls the corners you choose through; and adds clean, transparent and 4K overlays, advanced OBD (custom PIDs and alerts) and export to other apps' formats. A free account is required — just an email and a password. It is the same account as on timeattack.run. LapTAR Pro Monthly is an auto-renewing subscription: it renews each month until cancelled, and can be cancelled any time in your App Store account settings at least 24 hours before the period ends. LapTAR Pro Lifetime is paid once. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://timeattack.run/privacy