onTrackTools vs Lap Legend

onTrackTools brings professional-grade motorsport telemetry analysis to your iPhone, iPad, Mac, and Apple Vision Pro. Whether you're refining your driving skills, comparing laps, or validating car setup changes, onTrackTools turns raw track-day data, video, and logged signals into clear, actionable insight. Key Features • Import & Analyze Telemetry: Load VBO and LD session files, then explore speed, acceleration, lateral/longitudinal Gs, GPS traces, and any other logged channel. • AI Assistants (Apple Intelligence): Dictate your impressions right out of the car and get structured session notes, create math channels by describing them in plain language, and manage your garage conversationally, every change echoed back for confirmation before it's applied. Hands-free voice mode with spoken replies on every assistant. All processing happens on-device: your data never leaves your device. • Siri & Spotlight: Open sessions, show setups, create sessions, and capture notes without opening the app. • Math Channels: Create reusable calculated traces from your data using formulas, unit-aware inputs, aliases, derivatives, integrals, and common math functions. Chart them alongside built-in and logged channels. • Built-In Track Library: Start faster with a built-in library of 600+ track layouts, with automatic track detection during import. • Automatic Sector Detection: Generate sector splits from a selected lap using corners, braking zones, speed peaks, or equal-distance algorithms, then fine-tune and apply them on the track map. • Automatic Weather: Conditions for every session are retrieved automatically from Apple Weather and shown alongside your laps. • Plan Your Track Day: Create a session before the data exists, log vehicle, setup, conditions, and notes at the track, then attach telemetry and video later. • Synchronized Video Overlay: Pair supported video files - or videos stored in your Photos Library - with your data. Not tied to any proprietary data logger or camera. Watch delta times update frame-by-frame as you scrub through laps. • Side-by-Side Lap Comparison: Compare two laps in detail, aligned by time or distance on track, and instantly see where you gain or lose time. • Interactive Track Maps: Visualize GPS traces, car position, and custom sector splits directly on the circuit map. Tap any sector on the map or chart to zoom straight to it. • Custom Tracks, Sectors & Open Courses: Define your own track, start/finish line, sector splits, or separate start and finish lines for autocross courses, hillclimbs, rally stages, and more. • Lap & Sector Time Tables: Break down performance with detailed tables, highlight best sectors, and calculate your theoretical ideal lap. • Sessions at a Glance: Every session row shows lap count, best lap time, and weather, with search and filtering to find any session fast. • Persistent Analysis State: Switch between sessions and comparisons without losing your working context - selected laps, traces, chart zoom, map view, scrubber position, sector zoom, and follow-car mode are restored per session set. • Garage, Vehicle & Setup Management: Track your car's history. Create vehicles, build configurations, and log setup changes for every session. • iCloud Sync: Your sessions, tracks, garage, videos, and math channels sync automatically across all your devices via iCloud. AI features require a device that supports Apple Intelligence running iOS/iPadOS 26, macOS 26, or visionOS 26 or later. Everything else works on every supported device. Whether you're chasing personal bests, fine-tuning driving technique, or testing car upgrades, onTrackTools is designed to help you get the most out of every lap. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lvsoftware.io/privacy/

Use your phone or tablet to record laps, autocross runs, 1/4 mile passes, and more! • Fast, Easy Setup - Get on Track in Seconds • Superior Data Acquisition + Deep OBD Data • GPS Lap Timing with Predictive & Target Times • Integrated Video+Data Recording and Export • Replay Data & Video of your Theoretical Best Lap • Advanced Analysis Tools Designed to Find You Time • Automatic & Manual Points of Interest (POI) Marking • Supports Road Course, Circle Track, Autocross, Rally, Drift, and Drag Racing • 2000+ Included Track Configurations • Custom Track Creation & Sharing • Integrated Weather Data & Density Altitude Calculations • Add Your Own Session Notes Lap Legend is fueled by a passion for motorsports, with the goal of giving all track drivers access to high-performance data acquisition, driving analysis, lap timing, and video. Enjoy! This app is intended only for sanctioned motorsports and track events. Always drive safely. Use at your own risk. Any telemetry or messaging features are not guaranteed, and must not be relied upon for critical or safety uses. Please see website or in-app information for details on compatible external hardware.