Dexian Timer vs ApexLap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dexian Timer
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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.
ApexLap
This app transforms your phone into a professional data-logger for track days, automatically timing laps with millisecond accuracy. It offers reliable lap timing for cars, motorcycles, and karting, with built-in circuits and the ability to create custom tracks. Advanced features include video overlays, full telemetry, and lap comparisons.
- Automatic lap timing with millisecond accuracy
- Video overlay export with lap data
- Full telemetry: speed, G-force, delta
- Lap comparison tool
- External GPS and OBD-II data support
- Setup sheet logging
- 500+ built-in circuits
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Your phone becomes a professional data-logger. ApexLap times every lap automatically the moment you cross the start line — reliably, every single time. Built for track days: cars, motorcycles and karting. No manual needed, readable in full sun through a visor, usable with gloves. RELIABLE LAP TIMING — FREE FOREVER • Automatic start/finish detection with millisecond interpolation • Every lap is saved the instant it completes — a crash or dead battery never loses your data • 500+ circuits built in worldwide, karting included — no second app to buy • Create your own start line for any track in seconds • Sessions per circuit, laps sorted by best time, best lap and theoretical best • Your recorded laps, sessions and history are never locked behind a paywall APEX PRO — THE FULL DATA-LOGGER • Video overlay export that actually works: lap time, speed, G-force and track map burned into your footage, fast and reliable • Full telemetry: speed traces, G-forces, auto sectors, live delta vs your best lap • Lap comparison: overlay two laps and see exactly where the time is • External 10 Hz GPS receivers (RaceBox, Garmin GLO, Dual…) and OBD-II engine data • Progression analysis per circuit, session after session • Setup sheets: tires, pressures and settings logged with each session • CSV export, unlimited custom circuits Try Apex Pro free for 7 days with the yearly plan. Monthly and one-time lifetime options available. Your location data stays on your device. No account, no tracking. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://develak.com/privacy-policy/
Screenshots
Verdict
The clearest difference is in-app purchases: Dexian Timer at none against ApexLap's 3. Dexian Timer also leads on iOS requirement (15.5 vs 17.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ApexLap sells 3 in-app purchases, starting at $4.99 per month. Dexian Timer asks for nothing beyond the download.
| Parameter | Dexian Timer | ApexLap |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.5 — better | 17.0 |
| Further details — not scored | ||
| Size | 134 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | 骞 魏 | Develak |
In-app purchases
Dexian Timer
No in-app purchases
ApexLap
- Apex Pro (Monthly)$4.991 Month
- Apex Pro (Yearly)7 Days trial$34.991 Year
- Apex Pro Lifetime$49.99









