LapViz.Stopwatch vs LapCoach

Transform your timing experience with our app, designed for racing enthusiasts, whether it's cars, karting, motorcycles, horses or any other competitive individual. Whether you're a professional or an amateur racing fan, this app allows you to time multiple racers simultaneously and share the results in real-time with other users trackside. The app lets you precisely record lap times using simple push-button controls on the device itself or using an external Bluetooth input device. Each time a racer crosses the finish line, you can record the lap times for each competitor. But what makes this app stand out is its collaborative connected timing feature. With the shared session feature, you can create or join a timing session with other users. Once connected, your timer not only tracks your own lap times but also syncs with other session members. Together, you can track the performance of multiple racers at once, creating a true live timing experience collaboratively, without the need for expensive transponders or other passive tracking devices. Users within a session can view live lap times from all participants, providing a complete overview of the competition or training. The app automatically calculates the fastest laps and provides real-time statistics for each racer. This collaborative approach allows for comprehensive tracking of each racer’s performance during the race. And for even broader visibility, live timing data can also be followed online in real time via Open Live Timing web application, allowing spectators, teams, and remote users to access the same live timing information directly from any web browser.

Track every lap with professional precision. LapCoach is the GPS lap timer for car and motorcycle track days that turns your driving data into actionable feedback through its built-in AI Coach. Get started, free Download the app and start immediately using your phone's GPS. No purchase required to begin timing your laps. Pair the LapCoach One device for maximum precision The LapCoach One hardware device brings GPS to 20Hz — 20 samples per second versus 1Hz on your phone. The difference between 5 meters and under 1 meter of positional accuracy. The difference between an approximate delta and one precise to the hundredth. Key features Real-time GPS lap timer Delta bar — compare every lap against your best lap or previous lap AI Coach — post-session analysis with actionable corner-by-corner feedback Automatic circuit detection Italian circuits preloaded — Monza, Mugello, Imola, Misano, Vallelunga and more Acceleration timer — 0-60 mph, 0-124 mph, quarter mile and more Full session history BLE connection to LapCoach One device for professional 20Hz GPS AI Coach — beyond the numbers At the end of each session, the AI analyzes your laps and identifies where you're losing time: late braking, suboptimal lines, apex points to hit earlier. When the circuit is recognized, the analysis goes corner by corner with specific suggestions on racing line, braking point, and recommended gear. Freemium model The app is free with core features. Advanced features — AI Coach, unlimited delta, full history, all circuits — unlock with a one-time purchase. No subscription. Pairing the LapCoach One device automatically unlocks all premium features. Compatibility Works with any car or motorcycle on track. No electrical installation required. The device mounts with velcro or zip ties in under 2 minutes.