onTrackTools vs Dexian Timer

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/

Dexian Timer is a professional lap timing and telemetry analysis tool designed exclusively for track day and karting enthusiasts. Fully compatible with the high-performance 25Hz Dexian D1 GPS, RaceChrono DIY protocol devices, and .VBO file imports, it delivers the ultimate smooth experience for lap timing and data review. KEY FEATURES: • High-Precision GPS Data: Supports external GPS receivers with up to a 25Hz update rate, completely eliminating the lag of built-in smartphone GPS. • Universal Video Auto-Sync (Patent Pending): A pioneering dynamic timestamp QR code solution that breaks device barriers, supporting ANY external camera or smartphone for video recording. Simply record the on-screen QR code before driving; upon import, the app visually scans it to achieve millisecond-perfect alignment between your video and telemetry data, completely eliminating tedious manual timeline adjustments. • Bluetooth OBD Telemetry: Support for connecting external Bluetooth OBD modules. Read real-time underlying vehicle performance data (such as Engine RPM and Throttle Position) perfectly synced with your GPS telemetry, making your data review and exported videos look like professional motorsport broadcasts. • Innovative Pit2Car Communication: Break the communication barrier between the car and the pit wall! Without needing any account registration, your pit crew or friends can use a web browser to send real-time commands (like "Box") directly to your live dashboard while you are driving. • Perfect Map Alignment in China: Automatically handles map coordinate conversions to completely eliminate the trajectory offset issues common in traditional apps. Your racing line aligns perfectly with the map. • Auto Lap Timing & Real-Time Delta: Intelligently detects your current track and automatically triggers timing when crossing the start/finish line. During your stint, it displays a precise, position-based real-time delta against your session's or day's best lap, letting you instantly know your current pace. • Session Analysis & Dual-Lap Comparison: A dedicated landscape analysis workspace seamlessly integrating map trajectories, telemetry graphs, and onboard videos. Features highly synchronized dual-video and data playback to compare two laps side-by-side, visually identifying fast and slow sectors to find exactly where to push harder. • Video Export with Data Overlay: Export your track highlight videos with professional telemetry HUDs with a single tap. Freely configure the overlay elements (speed, G-force friction circle, OBD data, etc.) to create highly personalized videos ready for easy sharing. • 1,000 Built-in Tracks: Pre-loaded with nearly 1,000 touring car and karting tracks worldwide. No manual start/finish line setup required—just arrive and race. POWERFUL COMPATIBILITY Supports any Bluetooth GPS receiver based on the RaceChrono BLE DIY protocol. Seamlessly imports and exports industry-standard .VBO files to perfectly integrate with your existing data ecosystem. IMPORTANT SAFETY DISCLAIMER Motorsport is inherently dangerous. This application is designed exclusively for use on closed-circuit tracks and professional racing facilities. DO NOT use this app on public roads. The data is for reference only. Always prioritize safe driving.