LapViz.Stopwatch vs LapPulse Timer

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.

LapPulse is the ultimate lap timer for kart drivers — precision telemetry in your pocket. REAL-TIME LAP TIMING Connect your RaceBox Mini via Bluetooth for 25Hz GPS-based lap detection with automatic start/finish line recognition. See your current lap, best lap, and live delta in real time on a heads-up display designed for the track. 3 HUD LAYOUTS Choose from Neon Grid, Racing Cockpit, or Clean Brutalist — each available in landscape and portrait orientation. Mount your phone on the wheel or dash and get the data you need at a glance. LAP COMPARISON Compare any two laps side by side with synchronized speed and delta charts. Scrub through the data and see cursor positions move on the track map in real time. Find where you're gaining and losing time. SPEED ANALYSIS Color-coded speed heatmaps overlay your racing line on a satellite map. Instantly see braking zones, corner speeds, and acceleration points. TRACK MANAGEMENT Create and manage your favorite tracks with a guided editor. Set start/finish lines and sector boundaries with precision using draggable pins and visual trigger zones. PERSONAL BESTS Track your PB progression across sessions for every track. See your improvement over time and celebrate new records. SESSION HISTORY Every session is saved with full telemetry data, weather conditions, and tags. Filter, search, and review your driving history. SHARE & COMPARE Export sessions as .lappulse files to share with teammates, or export CSV for external analysis tools. WORKS OFFLINE All data is stored locally on your device. No account required, no cloud dependency. Your data stays yours. REQUIRES: RaceBox Mini, Mini S, or Micro GPS device for live recording. Demo mode available for testing without hardware. BUILD YOUR OWN HUD Every driver reads a different number first. Drag widgets onto a snap grid and put yours where your eyes already go — current lap, best lap, live delta, predicted lap, speed, sector lights and more. Portrait and landscape get their own layouts. The stop button always stays put, so you can never lose it mid-session.