Rowly vs TapSplit

Rowly is a rowing performance tracking app designed for on-water training and post-session analysis. It uses your phone’s GPS and motion sensors to record key rowing metrics in real time and presents them in a clear, practical way for review after each session. Rowly is free to use for real-time tracking during your sessions. See your pace, stroke rate, distance, and more as you row. More extensive analytics, integration with heart-rate sensor, and uploads to Strava are available in the Premium plan - with which you help me cover the cost of development. Rowly is suitable for both individual rowers and coxswains who want better insight into pace, rhythm, efficiency, and consistency during and after training. Uses advanced sensor fusion combining GPS, accelerometer, and gyroscope with Kalman filtering and zero-crossing stroke detection for accurate speed, stroke rate, and boat stability tracking — no external hardware needed. Terms of use / EULA can be accessed here: https://rowly.ecvis.nl/terms

TapSplit is a no-nonsense stopwatch built for coaches and athletes who need to trust their timing. TAP ANYWHERE — START, LAP, RESUME The whole screen is your button. Tap to start, tap for every lap (zero debounce — every touch counts), tap to resume after a stop. Each tap fires a crisp haptic. No tiny targets, no missed splits — just keep your eyes on the athlete. LAP & SPLIT AT A GLANCE See each lap time and its cumulative split side by side, with a running BEST / AVERAGE / WORST strip so trends jump out at a glance. PLAN YOUR SETS Save a set like 8×100m on 1:30 and load it onto the stopwatch. TapSplit counts the reps and shows live "Rep 3 of 8" progress, so you just tap the splits — no counting in your head. Give the set a send-off interval and it counts down to your next rep during the rest, buzzing when it's time to go — a real interval trainer. Keep a reusable library of your go-to sets, each with its own note. TIME YOUR WHOLE SQUAD Switch the stopwatch to Multi mode and give every athlete their own clock on one screen. Save your athletes once and drop them onto lanes — no retyping names. Start them all together for a mass start, or each one as they go. Every athlete's run saves as its own session, just like the single stopwatch. STROKE RATE IN A FEW TAPS Press and hold while you count a few cycles — strokes, steps, or pedal strokes — and release. TapSplit times the hold and gives you the rate per minute. Measure mid-session and it pairs with the lap you took it on, so rate sits right beside that length's split. REVIEW EVERYTHING IN HISTORY Every session is saved the moment you start — there's no Save button to forget. Filter by stopwatch, set, or athlete, search your sessions, and browse them grouped by day. Rename sessions and add notes. ROCK-SOLID ACCURACY TapSplit runs on a monotonic clock that never drifts — accurate across stop and resume, and it keeps running even when your phone is locked or the app is in the background. SHARE YOUR DATA Export any session as a clean text or CSV file — or select several and share them all as one combined file. Save to Files, AirDrop, or email straight from the share sheet. PRIVATE BY DESIGN No accounts. No analytics. No network requests. Everything stays on your device, full stop. FEATURES • Tap anywhere to start, lap, and resume — zero debounce • Single, Multi, or Sets mode — one stopwatch, one per athlete, or a planned set • Training Sets — save and reuse planned sets, with live "Rep N of M" progress • Send-off intervals — a live countdown to the next rep, turning Sets into an interval trainer • Reusable saved athlete list • Stroke-rate (SPM) measurement, paired to each lap • Pro controls: Lap / Stop, Start / Reset • Live current-lap time, plus BEST / AVG / WORST • Millisecond precision (MM:SS.hh), rolls over to hours for long efforts • Auto-saved sessions — filter, search, and browse grouped by day • Editable session titles and notes • Undo lap deletions; duplicate and prune sessions • Text or CSV export — per session, or several combined into one file • Light / Dark / System appearance • Haptic feedback (with on/off toggle) • Screen stays awake while timing Whatever the sport, TapSplit keeps the timing honest and out of your way.