SmartRow vs ErgZone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartRow
Transform your WaterRower into a high-precision ergometer. Track detailed workout metrics including force curves and heart rate, and monitor fitness indicators like Watts-per-Beat. Sync your progress seamlessly with Apple Health.
- Lab-grade ergometer conversion
- Detailed force curve analysis
- Heart rate graphing
- Workout tracking and history
- Fitness metrics (Watts-per-Beat, Watts-per-Kilogram)
- Apple Health synchronization
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The SmartRow App (together with the SmartRow-conversion) will turn your WaterRower into a lab grade ergometer. It will not only show you power, distance, work-per-stroke, calories etc., it will show you each force-curve, heart rate graph and much, much more! It keeps track of your workouts, and even shows you well-known fitness metrics like 'Watts-per-Beat' and 'Watts-per-Kilogram'. It even syncs your workout data with Apple Health. This is the best training tool you can invest in—after hiring a coach, of course!
ErgZone
Optimize indoor training with real-time performance data, personalized pacing, and engaging challenges. Seamlessly integrates with various fitness machines, automating setup and providing critical metrics to enhance your workouts.
- Easy monitor setup
- Live performance metrics
- Smart interval pacing
- Real-time workout alerts
- Workout variety options
- Performance history tracking
- Community challenges
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ErgZone is a cutting-edge fitness platform designed to optimize your indoor training sessions. By seamlessly integrating with your Concept2, RP3, Rogue, WaterRower, Assault Fitness or FTMS-enabled machines, ErgZone provides real-time performance data, personalized pacing, and engaging challenges to push your limits. Why Choose ErgZone? Designed to streamline your training, ErgZone minimizes setup time, automates monitor configurations, and calculates critical metrics so you can focus on performance, not prep. Key Features: • Easy Monitor Setup: No need to manually set intervals – simply connect to the ergometer, and the app handles the rest. Start moving right away. • Live Metrics: View real-time data during workouts, including time, distance, pace, strokes/minute (SPM), calories, watts, heart rate (HR) zones, and more. • Smart Interval Pacing: Suggested pace per interval based on personal benchmarks (1K, 2K, 5K for rowing and skiing; 2K, 4K, 10K for cycling). • Real-Time Alerts: Instant feedback if your pace, SPM, or split time drifts from the target. • Workout Variety: Options to train by time, distance, or calories with flexibility for mixed or weighted workouts. • Daily Workouts: Access the Concept2 Workout of the Day, plus discover workouts and training plans from top coaches. • Performance History: Save your favorite workouts, track heart rate progress, and monitor key metrics. • Compete & Connect: Join challenges, follow ErgFlix workouts, and interact with our partner coaches who release weekly free workouts. • Beyond Default Metrics: Track advanced metrics like stroke count, drag factor (DF), calories, watts, SPI, HR zones, and more. • Automatic Syncing: Results are automatically uploaded to the Concept2 LogBook. Unlock ErgZone+ for Premium Tools: • Enhanced Metrics & Graphs: View each interval's post-workout heart rate and power zones in a single graph. • Expanded Metrics: Access Drive Length, Max Power, Avg. Force, Force Curve, and more. The app remembers your last-used metrics for easy setup. • Time Cap & AMRAP: For added versatility, use automatic time-capped workouts and AMRAP (as many rounds as possible). • Flexible Targets: Set workout intensity using power metrics like FTP (Functional Threshold Power), SPI, or Watts percentage. • ReRow, ReSki, ReRide: Revisit previous sessions and strive to beat your pace or time. • Communities: Create and join communities, share workouts, and engage with friends. Enable leaderboards for a fun, competitive edge. • Apple Health Integration: Sync workouts and heart rate data directly to Apple Health. • Heart Rate Monitor: Connect your favorite Bluetooth HRM to track your heart rate in real-time during workouts. • Web Dashboard: Manage workouts, schedule training, and view live stats on a computer. • MultiErg Workouts: Create custom workouts incorporating two or all three Concept2 machines in a single workout. • Dynamic Interval Intensity: Set workout pace based on a previous interval. • Apple Watch Integration: Capture heart rate data from our Apple Watch app. • Organize Your Training: Create groups, libraries, and training plans to manage better and organize your workouts. • FIT Workouts: Track non-erg workouts such as weight training, HYROX, CrossFit, etc. Requirements: • Supported Machines: Concept2 RowErg, BikeErg, SkiErg with PM5, RP3 Rower, Rogue Echo Bike or Rower, WaterRower S4 (with ComModule or CR BLE), FTMS-enabled machines. • Device: iPhone or iPad Terms of Use: https://www.erg.zone/terms
Screenshots
Verdict
The clearest difference is rating: ErgZone at 4.8 against SmartRow's 3.8. ErgZone also leads on review sentiment (82% vs 46%) and ratings volume (458 vs 73). SmartRow's advantage is in-app purchases (none vs 2). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ErgZone sells 2 in-app purchases, starting at $4.99 per month. SmartRow asks for nothing beyond the download.
ErgZone holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: ErgZone has 458 ratings behind it against 73, so its average is the more settled of the two. Written reviews point the same way: 46% of SmartRow's written reviews are positive against 82% of ErgZone's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.
| Parameter | SmartRow | ErgZone |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (73 ratings) | 4.8 (458 ratings) — better |
| Positive reviews | 46.0% of reviews | 81.6% of reviews — better |
| Number of ratings | 73 | 458 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Requires iOS | 15.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 60 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Ergometer Innovations B.V. | ERGZONE LLC |
Customer experience
SmartRow
ErgZone
User reviews
SmartRow
From 73 App Store ratingsWhat we love
- 🚀 Accurate data and metrics
- 🔍 Detailed performance tracking
- 📊 Integration with Strava and Apple Health
- 🔧 Customizable display and settings
- 🤖 Seamless Bluetooth connectivity
Room to improve
- 🐛 Unstable Apple Watch integration
- 🔍 Limited data export options
- 🕰️ Lack of pause/resume functionality
- 🔢 Distance-based intervals not supported
- 🔌 Occasional connectivity issues
ErgZone
From 458 App Store ratingsWhat we love
- 👍 Easy workout programming
- 🚀 Seamless Concept2 integration
- 💡 Comprehensive metrics and data
- 👍 User-friendly interface
- ❤️ Responsive developers
Room to improve
- 💰 Expensive subscription
- 🚫 No lifetime membership option
- ⚠️ Poor UI for logbook/rankings
- ❌ Incompatible with WaterRower
- ❓ Confusing group membership for premium features
Bugs and requests
SmartRow
Reported bugs
4 issues- App crashes during long rows
- Workout data not saving properly
- Connectivity issues with Bluetooth devices
- Compatibility problems with newer iOS versions
Requested features
6 requests- Distance-based interval workouts
- Audible cues and prompts during workouts
- Ability to duplicate/sort custom workouts
- Integration with Garmin devices
- More advanced performance analytics
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- Customizable heart rate zone settings
ErgZone
Reported bugs
9 issues- Heart monitor sync issues with Samsung Galaxy watch
- Workouts not appearing in logbook when connected to ErgData
- Inaccurate total time in uploads
- Rest distance not included in Strava upload
- Group membership premium features unclear
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- Workouts not shown chronologically
- Occasional hesitation to connect to PM5
- Cannot figure out how to connect to PM5
- Workout completion and upload to logbook could be more intuitive
Requested features
7 requests- Sync with Samsung Galaxy watch
- Add a beep function for interval changes
- Confirmation pop-up for unsaved workout changes
- Require unique names for workouts
- Apple Health integration
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- Native Apple Health synchronization
- Sharing with Apple Health
In-app purchases
SmartRow
No in-app purchases
ErgZone
- EZ+ Monthly7 Days trial$4.991 Month
- EZ+ Annual$49.991 Year








