LAP＆LEAN vs TrueLean

A GPS lap timer and lean-angle logger built for motorcycles. Record and analyze a whole track day with nothing but your iPhone. ◆ Made for bikes — lap times and lean angle Unlike a general-purpose lap timer, this app measures your bike's lean angle. Stand the bike upright before you set off and tap once — that is the whole setup. As soon as you start riding, the app learns which way the bike points from your GPS heading, so it records lean correctly no matter how your phone is mounted (portrait, landscape or angled). Right-hand lean is logged as R and left as L, and you keep the maximum lean angle for every corner. ◆ Build your own courses — local tracks welcome 28 preset circuits are included, covering every venue on the 2026 MotoGP calendar: Assen, Mugello, Silverstone, Circuit of The Americas, Jerez, Barcelona-Catalunya, Sepang, Phillip Island and more, plus Japanese circuits such as Suzuka, Motegi and SUGO. You can also draw your own. Place the control line, sectors and corners on the map and any local circuit or practice course becomes a timed course. Point-to-point layouts with a separate start and finish, such as hillclimbs, are supported alongside conventional lap circuits. ◆ Accurate lap timing Line crossings are interpolated from the GPS trace to give lap times accurate to 0.01 s relative within a session. Out-laps and any other laps you do not want are easy to exclude from the totals after you finish. ◆ Sector and corner analysis Every line you draw splits the lap into another sector, and each sector time is recorded and shown live while you ride. Entry speed and maximum lean angle are captured corner by corner, so the detail of your riding is there to see. ◆ Trend charts show your progress The more sessions you ride, the further your best lap, sector times, corner lean angles and corner speeds extend across the chart. Switch by course and by metric to see your improvement at a glance. ◆ Review it properly afterwards The session view puts the summary, laps, sectors, corners and a course preview on one screen. Open a lap for speed and lean-angle graphs, with each corner drawn on a motorcycle illustration tilted to the angle you actually reached. ----------------------------- Highlights - Everything runs on your iPhone. No account, no server, fully local - The screen stays awake while timing, so it stays readable on the move - Speed in km/h or mph, matched to your region or set by hand - Favorite courses for one-tap selection ----------------------------- For safe use - We recommend using this app in a safe, controlled environment such as a racing circuit. - When riding on public roads, always obey traffic laws and ride at a safe speed. - The app and its developer accept no liability whatsoever for any damages arising during use of this app. Here to support safe, enjoyable riding.

TrueLean™ measures how far your motorcycle actually leans - the real angle through a corner, not what a bubble level would show. In a steady corner, gravity and cornering force combine to point straight down the bike's own vertical axis, which is exactly why a plain accelerometer reads near zero mid-turn. TrueLean fuses gyroscope attitude with cornering physics, so the number on screen is the lean you're really carrying - accurate through transitions and steady-state alike. One tap zeroes your mount, and it works at any mount angle. A LIVE INSTRUMENT CLUSTER • Big, glanceable lean gauge with zone colors and max-lean markers • Speed, distance, lean, and g-force tiles, plus a ride timer • Portrait or landscape, with an OLED-friendly dark cluster • Keeps recording with the screen off or the app in the background EVERY RIDE, SAVED • Full ride history with personal bests • Route map colored by lean angle, with your deepest-lean markers • Lean and speed timelines, g-forces, and complete stats • 0–60 mph / 0–100 km/h acceleration timing YOURS TO KEEP • Export any ride as GPX (with lean/speed) or CSV from the share sheet • Hands-free start/stop via the Action Button and Siri • Built for long rides: adapts the screen, sensors, and processing to save battery without ever dropping recording fidelity PRIVATE BY DESIGN • No accounts, no ads, no analytics, no third-party SDKs • Your ride data stays on your device and is never sent to us • Nothing leaves your phone unless you choose to export and share it RIDE RESPONSIBLY TrueLean is a recreational tool for reviewing your rides - not a safety device, and its readings are estimates. Mount your phone securely, set up before you move, and never interact with the app while riding. Obey the law, ride within your limits, and save record-chasing for a closed course. Requires an iPhone with a gyroscope. Designed for a rigid handlebar/fork mount.