TrueLean

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 (lean = atan(speed × turn-rate ÷ g)) so the number on screen is the lean you're really carrying, through transitions and steady corners 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 • Your three most recent rides with stats and personal bests, free • Full, unlimited ride history (Pro) • Route map colored by lean angle, with your deepest-lean markers (Pro) • Lean, speed and g-force charts across the whole ride (Pro) • Corner-by-corner breakdown and time in each lean zone • Search your rides • A garage of bikes, each with its own setup and personal bests (Pro) • 0–60 mph / 0–100 km/h acceleration timing, plus your own speed ranges (Pro) YOURS TO KEEP • Export any ride as GPX (with lean/speed) or CSV from the share sheet (Pro) • 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 third-party SDKs, no tracking • Optional usage sharing - off by default, and you can read and delete every record • Your ride data is never sent to us • iCloud sync goes only to your own private iCloud, and can be turned off • A ride's town and weather are looked up from Apple's services, from where it started TRUELEAN PRO Free keeps your three most recent rides. TrueLean Pro unlocks every feature marked (Pro) above, plus Neural Lean, as a monthly or annual auto-renewing subscription or a one-time Lifetime purchase. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and can be managed or cancelled in your App Store account settings. 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. Terms of Use: https://truelean.app/terms Privacy Policy: https://truelean.app/privacy