Dexian Timer

Data Makes You Faster

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

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.

  • This app has not received enough ratings or reviews to display an overview.

New Features: 1. Dexian Karting Kit Synchronization: Added QR-code pairing and data synchronization with the Dexian Karting Kit. Supports batch downloading and importing pending track sessions, further completing your hardware and software racing ecosystem. 2. Pit2Car Live Lap Timing: Pit2Car communication gets a massive upgrade! The app now shares core live timing data—including the current track, completed laps, and lap times—with the pit wall in real-time, keeping your endurance racing teammates and pit crew fully informed of your pace on the track. 3. Pure Lap Timer Mode: Introduced an optional minimalist dashboard mode. When enabled, live delta and speed are hidden, displaying only the current elapsed lap time for a completely distraction-free driving field of view. 4. Paused Lap-Comparison Alignment: In landscape dual-lap comparison mode, pausing the playback now allows you to disable the automatic alignment of vehicle markers and video footage by "physical track position," providing a more intuitive comparison of the accumulated differences between laps. 5. Independent Camera Resolution Controls: You can now set distinct video recording resolutions (720p, 1080p, or 4K) for your phone's front and rear cameras, letting you freely balance video quality with device storage and battery consumption. 6. VBO Record-Code Import: The VBO import function now supports scanning KartingCircle record codes, allowing you to easily download and import telemetry recordings from remote servers. 7. GPS Automatic Reconnection: Upon app startup, it will automatically attempt to reconnect to your last-used Dexian GPS receiver, saving you the hassle of manual connections every time. Improvements & Fixes: 1. Resilient Session Saving & Data Recovery: Completely overhauled the session saving logic at the end of a stint. Added a saving progress prompt with an anti-accidental touch mechanism; unexpectedly interrupted sessions are no longer silently lost, but automatically retained with a "Recalculate Session" recovery option provided in the history, maximizing the safety of your data. 2. Delta & Ideal Lap Algorithms: When a "Day-Best" lap exists, the live delta is now supported to take effect and display immediately on the first lap of a new session; refined the "Ideal Lap" calculation logic by removing the previous 0.1-second improvement threshold limit, accurately capturing your true progress in every tiny micro-sector. 3. Fixed the native phone video capture orientation lock logic at the start of recording, preventing iOS from incorrectly tagging the video orientation which caused the landscape analysis graphs to be obscured. 4. Map Engine & UI Details Enhancements: Enhanced the stability of automatic map engine selection to better adapt to various complex network environments; removed duplicate preprocessing tasks to optimize the loading speed of session maps; fixed an issue where the VBO import menu could be obscured in landscape mode.

The developer, 骞 魏, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location

Privacy practices may vary based, for example, on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Provider
骞 魏
Size
163.2 MB
Category
Sports
Compatibility
Requires iOS 15.5 or later.
  • iPhone
    Requires iOS 15.5 or later.
  • iPod touch
    Requires iOS 15.5 or later.
  • Mac
    Requires macOS 12.4 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and Simplified Chinese
Age Rating
4+
Copyright
© 2026 Dexian Racing