Stopwatch Max vs BoxBox

The stopwatch built for your wrist — now on your phone too. Stopwatch Max is a precision lap timer designed for Apple Watch, where it runs entirely on its own, with a full iPhone app that stays on the same run. Raise your wrist and go. TRACK EVERY LAP Capture every split with pinpoint accuracy. Record laps with a tap, a double-tap, a hand gesture on Apple Watch, or automatically at an interval you set — whatever feels right in the moment. Every split is logged instantly and displayed in real time, so you always know exactly where you stand. WATCH AND IPHONE, ONE RUN Start a run on your wrist and see it tick on your phone. Laps, elapsed time and the running state mirror across both devices, and a finished run lands in the history on each one. Use either device alone, or both together. YOUR SESSION HISTORY Every run is saved — laps, splits, date, and your average and maximum heart rate. Open any session to see the full lap list exactly as you recorded it. HEART RATE, LAP BY LAP Turn on heart-rate recording and your Apple Watch captures your heart rate at the moment you take each lap, not just the average and maximum for the whole run. See how you climbed, and where you recovered. SHARE AND EXPORT On iPhone, send a run as a clean summary, export it as a CSV for your spreadsheet, or share it as an image card with a chart of your splits, your average line and your fastest lap highlighted. HEALTHKIT WORKOUTS With heart-rate recording on, every timing session on Apple Watch is logged as a workout in Apple Health, with lap events recorded as activity milestones — a structured log of every run. Leave it off and Health is never asked for. SIRI SHORTCUTS Your hands are busy. Start, lap, pause, resume and reset — all hands-free with Siri, from anywhere, at any time. Whether you're mid-rep, mid-lap, or mid-race, your voice is all you need. WATCH COMPLICATIONS Add Stopwatch Max to any watch face and launch it instantly with a single tap — no swiping, no searching. Have your stopwatch ready the moment you need it. TUNED TO YOU Set an auto-lap interval, choose your display refresh rate, and feel a lap without looking — on Apple Watch the lap haptic comes in Light, Medium and Strong. BUILT TO LAST Your timer state is saved automatically in the background. Switching apps, checking a notification, or restarting your watch won't cost you a single second. Come back to your stopwatch exactly as you left it. WORKS IN YOUR LANGUAGE Fully localized in English, German, Spanish, French, Japanese, Russian, and Simplified Chinese. PRIVACY FIRST No ads. No subscriptions. No data collected. A one-time purchase that respects your time and your privacy. Simple enough for your first workout. Precise enough for your best one.

BoxBox turns your iPhone and Apple Watch into a lap timer, telemetry system and live pit wall for karting, formula and GT racing. Drop your phone in the car, strap on your watch, or pair a RaceBox over Bluetooth for 25 Hz GPS: BoxBox times every lap automatically, shows your live delta, and speaks your gaps so your eyes stay on the track. TIME: automatic lap detection on any circuit, live delta to your best, sector timing. Tracks are created on the go, no library to download. REVIEW: every session saved with full telemetry. Replay your line on the map coloured by speed, braking in red, lap against lap, and find the corners where the time is hiding. SHARE: go live so friends, coach or team can watch your session in real time, lap by lap, with your position on the track map. APPLE WATCH: start a session from your wrist, with or without the phone in the car. Last lap, best, live delta and your heart rate on the watch. One tap for a good lap, two for a slow one. Start on the phone and the watch mirrors it, or the other way round. APPLE HEALTH: turn it on and your heart rate and active energy from Apple Health are kept with every session, so you can see how hard each stint really was. BOXBOX PRO: optional monthly subscription that unlocks your complete session history and everything we ship next. Payment is charged to your Apple Account; the subscription auto-renews monthly unless cancelled at least 24 hours before the end of the period. Manage or cancel in Settings › Apple Account › Subscriptions. Terms: https://boxbox.racing/terms Privacy: https://boxbox.racing/privacy