SR Companion

A companion app for the SmartRow rowing sensor. Connect via Bluetooth to see real-time rowing metrics, force curves, and power data on your iPhone, iPad, Apple Watch, or Mac. Available in English, German, French, and Spanish.

SR Companion is an independent, third-party companion app for the SmartRow rowing sensor — not affiliated with, endorsed by, or developed in cooperation with SmartRow or Ergometer Innovations B.V.

REAL-TIME WORKOUT DATA
- Pace, average pace, speed, stroke rate, calories, and calories per hour — updated every stroke
- Tap any metric section to collapse it for a streamlined view — your layout is remembered
- Odometer-style stroke count and distance displays with smooth rolling digits
- Drive phase sweep animation on stroke length shows your stroke rhythm in real time

LIVE FORCE CURVE
- See your drive force profile as you row
- Smooth morphing between strokes for fluid visual transitions
- Optional previous-stroke overlay for technique comparison
- Peak force and work-per-stroke tracking

STROKE SCORE — TECHNIQUE FEEDBACK
- Every stroke is scored 1–10 on Timing (peak position) and Shape (match and smoothness), color-coded red/orange/yellow/green
- Reference curve follows the "Grinko style" described by Dr. Valery Kleshnev — strong leg-drive and an early peak
- Target curve is dynamic: it adapts each stroke to your current rate and peak force
- In-app info screen explains the methodology and cites the sources

POWER GRAPH
- Track power output across your session stroke by stroke
- Average power reference line with optional tolerance band
- Power consistency feedback shows percentage deviation when you drift outside your target range
- Rolling window mode to focus on recent strokes

HEART RATE ZONES
- 5-zone heart rate model from Recovery (Z1) through Max (Z5)
- Zone-colored display with animated progress ring showing percentage of max HR
- Configurable max HR: automatic from HealthKit age or manual entry
- Two formulas: Classic (220-age) and Tanaka (208-0.7x age)

APPLE WATCH COMPANION
- Use your Apple Watch as a heart rate monitor during workouts
- Auto-launches and streams HR as soon as you open the iPhone app
- Session Ready screen shows connection state and live HR

BLUETOOTH HEART RATE MONITOR
- Pair any Bluetooth LE heart rate strap as an alternative to Apple Watch
- Heart rate displayed during workouts with zone coloring and percentage of max
- HR data included in all exports

PEAK TRACKING
- Peak power, peak work, and peak pace highlighted with a flash when you set new session highs
- Configurable steady-state holdoff suppresses alerts during your first strokes

AUDIO FEEDBACK
- Configurable chimes for distance milestones, new peak achievements, and power consistency threshold crossings
- Full-screen flash at configurable distance intervals

FTMS BROADCAST
- Rebroadcast your rowing data as an FTMS fitness machine over Bluetooth
- Third-party apps like CityRow, Kinomap, Regatta, and ErgZone can connect to receive you