Comparison

ErgData vs Aviron

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

Aviron

Transform your rowing workouts into an engaging and addictive experience. This app uses fitness and game psychology to offer a variety of scenic rows, live competitions, and games. Track your progress, compete on leaderboards, and stay motivated with fresh challenges.

Highlights
  • Scenic rowing
  • Live competition
  • Gamified workouts
  • Community leaderboards
  • Monthly challenges
  • Apple Watch integration
  • Strava integration
Features
Read full description

Elevate your workouts with the award-winning Aviron rowing experience. The Aviron app, compatible with Concept2 PM5 Monitors, WaterRower S4 Monitors with ComModule, and the StrongGo is designed using fitness and game psychology to make your rowing sessions fun and even, addictive. Experience unmatched workout variety on the: Concept2 - Scenic rowing - Live competition - Games (Multiplayer mode coming soon) - Coached programs (coming soon) - Integration with C2 Logbook and Strava - And more! WaterRower - Scenic rowing - Live competition - Games (Multiplayer mode coming soon) - Coached programs (coming soon) - And more! StrongGo - Scenic rowing - Live competition - Games (Resistance-based for cardio and strength workouts) - Guided workouts - Coached programs - Integration with Strava - And more! Now supporting Apple Watch: - Track your heart rate seamlessly during workouts. - Sync your workout data with Apple Fitness. - Stay motivated by closing your rings with every session. Reignite your competitive side with monthly challenges, community leaderboards and head to head races. Fresh workouts, exciting challenges and frequent updates will have you looking forward to your next row like never before. GET STARTED IN 3 EASY STEPS 1. Download the Aviron app on your iPad. 2. Choose your rower and create your account. 3. Connect to your rower and get ready to level up your workouts! Optimized for and best experienced on your iPad. We are currently adapting the app software from our flagship Strong Series Rower for the iPad. We appreciate your patience and invite you to revisit us often, as the complete transfer of features and content is expected to take a few months. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ErgData4 screens
Aviron4 screens

Verdict

The call

The clearest difference is in-app purchases: ErgData at none against Aviron's 5. ErgData also leads on rating (4.7 vs 4.4) and ratings volume (5.9K vs 130). Aviron's advantage is review sentiment (73% vs 46%) and iOS requirement (12.0 vs 16.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Aviron sells 5 in-app purchases, starting at $19.95 per month. ErgData asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ErgData holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: ErgData has 5.9K ratings behind it against 130, so its average is the more settled of the two. Written reviews complicate that: 46% of ErgData's written reviews are positive against 73% of Aviron's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

ErgData ships an update fortnightly, Aviron monthly. The most recent releases landed on October 22, 2026 and October 18, 2026 respectively.

Scorecard6 real differences · 4 level
ErgData versus Aviron: the parameters behind the verdict, then further details
ParameterErgDataAviron
PriceFreeFree
Rating4.7 (5.9K ratings) — better4.4 (130 ratings)
Positive reviews45.6% of reviews73.3% of reviews — better
Number of ratings5.9K — better130
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS16.012.0 — better
Further details — not scored
Size76 MB2.3 GB
Age rating4+4+
DeveloperConcept2, Inc.Aviron Interactive Inc

Customer experience

ErgData

All ratings5,892 ratings
Positive93.8%
Neutral1.5%
Negative4.7%
Written reviews680 reviews
Positive45.6%
Neutral11.2%
Negative43.2%

Aviron

All ratings130 ratings
Positive86.2%
Neutral0.8%
Negative13.1%
Written reviews30 reviews
Positive73.3%
Neutral0.0%
Negative26.7%

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

Aviron

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ErgData

No in-app purchases

5 purchases

Aviron

Subscriptions5
  • Monthly Membership14 Days trial$19.951 Month
  • Monthly Membership$34.001 Month
  • Annual Membership$35.901 Year
Show 2 more
  • Annual Membership14 Days trial$179.001 Year
  • Annual Membership$349.001 Year

Questions

Is ErgData free?
ErgData is free to download, with no in-app purchases.
Is Aviron free?
Aviron is free to download, with in-app purchases available.
Which has better reviews, ErgData or Aviron?
ErgData is rated higher. ErgData averages 4.7 out of 5 from 5.9K ratings, while Aviron averages 4.4 from 130 ratings.
Do ErgData or Aviron have ads?
Neither ErgData nor Aviron shows ads.
Which is updated more often, ErgData or Aviron?
ErgData ships an update fortnightly, and Aviron monthly. Most recently, ErgData was updated on October 22, 2026 and Aviron on October 18, 2026.

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