Wobble Rowing vs RowCoach

Wobble Rowing measures the stability of your rowing shell during training and racing. In the spirit of "You can't improve what you don't measure", Wobble Rowing captures the motion of your shell and calculates the Wobble Factor which is a measure of how much your boat is rocking side to side. What Wobble Rowing measures: Wobble Factor — shell stability in real time Stroke Rate — strokes per minute Pace — minutes per 500 meters After each session: A per-minute summary shows your average pace, stroke rate, and wobble factor so you can track improvement over time. A CSV file is saved to your iPhone for detailed analysis. The CSV file captures data 10 times a second. Privacy: No personally identifiable data is collected. An anonymous ID is used to contribute data to a research database to help improve the model. GPS is used only to determine speed and location. Wobble Rowing is always free.

RowCoach turns your iPhone into a complete rowing computer. Take your phone in the boat and get the live metrics that matter, using the phone's built-in GPS and motion sensors — no dedicated head unit needed. LIVE ON-WATER METRICS - Split (time per 500m) from GPS speed - Stroke rate in strokes per minute, detected from boat motion - Distance, elapsed time, average split, meters per stroke - Large, high-contrast instrument display that stays readable in sunlight and never sleeps mid-piece BUILT FOR TRAINING - Create workouts by single time, single distance, time intervals, distance intervals, or fully custom interval sequences - Workout library with your saved favorites plus common presets: 2k test, 5k, 4x500m, 8x500m, steady-state pieces, pyramids, and more - Live interval guidance with countdown to the next piece and automatic split-by-split results REVIEW EVERY WORKOUT - Map view of your exact course - Interval-by-interval breakdown - Add your own notes to any session EXPORT ANYWHERE - TCX files upload to Strava, Garmin Connect, and TrainingPeaks - CSV for spreadsheets or manual logbook entry - Clean PDF workout reports for printing or sharing MORE THAN ROWING Track cycling and running too, with sport-appropriate metrics (pace and speed) and full GPS routes. All your data stays on your device. No account required, no sign-up, nothing uploaded unless you choose to export it.