Comparison

ErgData vs ErgZone

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ErgData

This app acts as a personal training partner for Concept2 equipment. It allows users to set up custom workouts, view real-time stats, track progress, and sync data with online platforms. It also offers workout of the day challenges and detailed post-workout analysis.

Highlights
  • Custom workout setup
  • Real-time workout stats
  • Progress tracking
  • Sync with Concept2 Logbook
  • Workout of the Day
  • Post-workout analysis
  • Apple Watch compatibility
Features
Read full description

ErgData from Concept2 is your personal training partner. Set up workouts from your phone or tablet, view customized stats and information during workouts, track your progress, sync with the Concept2 Online Logbook, take part in the Workout of the Day and much more. Features -Set up workouts from your phone, making it simple to create even the most complex of interval workouts. You can choose to store workouts as favorites or rerow past efforts straight from ErgData. -Set the Concept2 Workout of the Day on the monitor with a single tap. -Compatible with the Apple Watch. Watch users can now see real-time heart rate data on the screen during the workout and in analysis afterwards. -Choose from different workout display options, including small, medium and large data screens, a pace graph screen, an interval and split table or a pace boat. Easily swipe between screens during your workout. Customize the data shown to suit you. -Syncs with the Concept2 Online Logbook, making it easy for you to take part in our many challenges. From the Online Logbook, your workouts can get sent to platforms such as Strava, Garmin Connect or Training Peaks. -Detailed post-workout analysis helps you know exactly what happened during your workout. See all your interval and split data, as well as pace and rate graphs, plus how long you spent in each heart rate zone. -Optional voice guidance to send audible workout data and results. Technical Specifications -Compatible with the PM5. -Compatible with the Concept2 RowErg, SkiErg and BikeErg -Connects to Apple Health -Connects to PM5 via Bluetooth only Note: Please do not have a USB stick in the PM5 at the same time as using ErgData, as this may prevent workouts being saved.

About

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.

Highlights
  • Easy monitor setup
  • Live performance metrics
  • Smart interval pacing
  • Real-time workout alerts
  • Workout variety options
  • Performance history tracking
  • Community challenges
Features
Read full description

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

ErgData4 screens
ErgZone4 screens

Verdict

The call

ErgData and ErgZone both sit at 4.7 stars, but that hides the real split: 81% of ErgZone's written reviews are positive against 45% of ErgData's. ErgZone also leads on iOS requirement (13.4 vs 16.0). ErgData's advantage is in-app purchases (none vs 2) and update cadence (every 2 weeks vs every 2 months). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ErgZone sells 2 in-app purchases, starting at $4.99 per month. ErgData asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for ErgData against 4.8 for ErgZone. That said, the two scores are not equally well evidenced: ErgData has 5.1K ratings behind it against 458, so its average is the more settled of the two. Written reviews are what separate them: 45% of ErgData's written reviews are positive against 81% of ErgZone's.

UpkeepUpdate frequency

ErgData ships an update every 2 weeks, ErgZone every 2 months. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.

Scorecard6 real differences · 4 level
ErgData versus ErgZone: the parameters behind the verdict, then further details
ParameterErgDataErgZone
PriceFreeFree
Rating4.7 (5.1K ratings)4.8 (458 ratings) — better
Positive reviews45.4% of reviews80.9% of reviews — better
Number of ratings5.1K — better458
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS16.013.4 — better
Further details — not scored
Size74 MB33 MB
Age rating4+4+
DeveloperConcept2, Inc.ERGZONE LLC

Customer experience

ErgData

All ratings5,055 ratings
Positive93.0%
Neutral1.6%
Negative5.4%
Written reviews678 reviews
Positive45.4%
Neutral11.2%
Negative43.4%

ErgZone

All ratings458 ratings
Positive95.4%
Neutral1.7%
Negative2.8%
Written reviews68 reviews
Positive80.9%
Neutral4.4%
Negative14.7%

User reviews

ErgData

From 5.1K App Store ratings

What we love

  • 🚀 Great app
  • 👍 Excellent stats
  • 👍 Easy to use
  • 👍 Seamless sync with Concept2 logbook
  • 👍 Customizable heart rate zones

Room to improve

  • 🐛 Connection issues with PM5
  • 🐛 Unreliable heart rate monitoring
  • 🐛 Sync issues with Apple Health
  • 🐛 Crashes and data loss
  • 🐛 Frequent disconnections

ErgZone

From 458 App Store ratings

What 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

ErgData

Reported bugs

6 issues
  • Workout data not saving
  • Heart rate data freezing
  • Disconnects during workouts
  • Sync issues with Apple Health and Strava
  • Login issues and frequent logouts
Show 1 more
  • Incompatibility with older firmware versions

Requested features

8 requests
  • Add friend mode
  • Integrate Apple Watch support
  • Add manual workout entry
  • Implement landscape mode for iPad
  • Integrate pace calculator
Show 3 more
  • Add recovery heart rate tracking
  • Display METS data
  • Allow custom heart rate zones in logbook

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
Show 4 more
  • 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
Show 2 more
  • Native Apple Health synchronization
  • Sharing with Apple Health

In-app purchases

None

ErgData

No in-app purchases

2 purchases

ErgZone

Subscriptions2
  • EZ+ Monthly7 Days trial$4.991 Month
  • EZ+ Annual$49.991 Year

Questions

Is ErgData free?
ErgData is free to download, with no in-app purchases.
Is ErgZone free?
ErgZone is free to download, with in-app purchases available.
Which has better reviews, ErgData or ErgZone?
ErgZone is rated higher. ErgData averages 4.7 out of 5 from 5.1K ratings, while ErgZone averages 4.8 from 458 ratings.
Do ErgData or ErgZone have ads?
Neither ErgData nor ErgZone shows ads.
Which is updated more often, ErgData or ErgZone?
ErgData ships an update every 2 weeks, and ErgZone every 2 months. Most recently, ErgData was updated on September 23, 2026 and ErgZone on September 18, 2026.

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