# ErgData — user reviews > 652 indexed App Store user reviews of ErgData by Concept2, Inc., rated 4.70/5 from 3,872 ratings. - Source: https://appshunter.io/ios/app/ergdata/id561716382/reviews - App overview in markdown: https://appshunter.io/ios/app/ergdata/id561716382.md - Rating breakdown: 5★ 3,325 · 4★ 220 · 3★ 70 · 2★ 74 · 1★ 183 ## What do users think of ErgData? Overall sentiment: neutral **Pros** - 🚀 Great app - 👍 Excellent stats - 👍 Easy to use - 👍 Seamless sync with Concept2 logbook - 👍 Customizable heart rate zones - 👍 Accessible with VoiceOver - 👍 Drastically improved from previous versions **Cons** - 🐛 Connection issues with PM5 - 🐛 Unreliable heart rate monitoring - 🐛 Sync issues with Apple Health - 🐛 Crashes and data loss - 🐛 Frequent disconnections - 🐛 Logbook not updating properly - 🐛 Inconsistent performance after updates - 🐛 Requires account login, can't use anonymously **Commonly reported bugs** - Workout data not saving - Heart rate data freezing - Disconnects during workouts - Sync issues with Apple Health and Strava - Login issues and frequent logouts - Incompatibility with older firmware versions **Most requested features** - Add friend mode - Integrate Apple Watch support - Add manual workout entry - Implement landscape mode for iPad - Integrate pace calculator - Add recovery heart rate tracking - Display METS data - Allow custom heart rate zones in logbook ## Newest reviews (18 of 652) ### 3/5 — More variety in real time *2026-08-14, version 2.16.2* I like the real time app but could we change the course to the pace times that flow around with us? ### 5/5 — Workout of the day is a game changer *2026-07-31, version 2.16.2* Workout of the day feature transforms your experience of the concept2. Being able to upload a workout without effort keeps rowing alive and fun. Great app. Amazing rowing machine. ### 5/5 — Perfect app for my needs *2026-07-31, version 2.16.2* Rowing is just one of the many exercises that I’d like to do as part of my workout routine. This app along with my concept to rower make that very easy and natural. I like the many different display options and the way that it sinks with my watch to get my heart rate and the way that it automatically pushes all of its data to my fitness apps. Very nicely done. ### 5/5 — Force curve *2026-07-30, version 2.16.2* The additional force curve screen on the phone is amazing. Is there no way this can be saved to the log now? Not ever stroke but maybe an average for each segment would be super useful ### 5/5 — Appreciate C2 *2026-07-30, version 2.16.2* I have no idea why ErgData needs permission to write weight data to Apple Health, but workouts are syncing again! Thank you for the fix! ### 5/5 — Very helpful *2026-07-29, version 2.16.2* This rowing app is such a great help for someone starting out like me. I am very new to using an an indoor erg, since I am preparing for the next rowing season. This app is very good at helping me see my progress in my sessions. Also, they can connect with the exercise app on your watch, which has been great for helping me track heart rate and put the workout in. AWESOME APP ✨ ### 5/5 — It’s simply the BEST *2026-07-27, version 2.16.1* Great equipment ### 5/5 — All you need for serious training *2026-07-27, version 2.16.1* ErgData is made for people who want all the data without a lot of noise from a heavy graphical interface. It’s not going to motivate you to work out, unless you enjoy putting in the meters and watching the pace get faster. The only data point I would like to have added to the app is meters per stroke. ### 5/5 — Apple Watch support broken *2026-07-25, version 2.16.1* Used the app with watch for years, with no issues save for a temporary bug where the watch app just crashed upon workout start. Website support was average but thankfully C2 developers read the reviews and bug was fixed! Thanks ### 5/5 — Keepers Rowing *2026-07-25, version 2.16.1* pretty nice app. i mainly use for logging meters.. plenty of info available and easy to connect. solid download. ### 5/5 — Update 2.16.1 fixed it! *2026-07-24, version 2.16.1* PM5 once again displays active HR when paired with iPhone using Apple Watch as hr monitor. This resolves the watch issue displaying “start a workout from your phone” and crashes when you do. Accompanied by the PM5 displaying dashes in the HR display. Update 2.13.6 broke it. 2.16.1 resolved it. Good job ErgData team. +4 stars. ### 5/5 — Great Experience *2026-07-24, version 2.16.1* Huge fan of the Concept 2 machines and the app. Love the user experience and the data quality! ### 3/5 — Connecting and Reporting issues *2026-07-23, version 2.16.1* Workouts stopped reporting to Apple health. It also now takes several attempts to get the just row to respond. It was working great until about a week or two ago. ### 5/5 — Nice App *2026-07-22, version 2.16.1* Makes the ERG even better ### 5/5 — Sensei *2026-07-22, version 2.16.1* Love ErgData and Concept 2 SkiErg, bike & rower and how you can compete around the World in your age group! What fantastic motivation for us competitive ones! Osu ### 5/5 — I do it every day *2026-07-21, version 2.16.0* Best workout regimen I have ever used. I’m 61 and feel great. ### 5/5 — Fantastic vo2 max exercise app *2026-07-20, version 2.16.0* I am 45+ exercising with rowing and ski this app has helped me to go from 46 to 52 vo2max in about one year. Just use the trainings and link multiple of them together spend your time investing in you, this app will not motivate you. It’s only you and nobody else ### 3/5 — Not syncing *2026-07-19, version 2.16.0* Not syncing with C2 logbook or Apple Health since last update ## Most critical reviews (10 lowest-rated) ### 1/5 — now forces an account and login *2026-07-23, version 2.16.1* all to collect personal data. the old app was fine but I foolishly allowed an update just to have this data collection garbage forced on me. Give me the old app back that didnt force data collection. ### 1/5 — Wrecked it *2026-07-22, version 2.16.1* Downloaded update and now I can’t use favorites or get the app to work. FFS - don’t you test before rolling out an update ### 1/5 — No longer connecting Apple Watch *2026-07-18, version 2.16.0* I love my rower and the app, but now my Apple Watch will no longer share or register my heart rate. Greatly affects my workout ### 1/5 — Apple Watch support broken *2026-07-17, version 2.16.0* Used the app with watch for years, but in recent months, the watch app just crashes upon workout start. “Row-bot” Zendesk support hopeless. Lift your game C2. ### 1/5 — Update 2.16 didn’t fix it *2026-07-09, version 2.16.0* PM5 still doesn’t display active HR when paired with iPhone using Apple Watch as hr monitor. This App on watch after years of working now will display “start a workout from your phone” and crashes when you do. PM5 displays dashes in the HR display. Update 2.13.6 broke it. 2.16 update didn’t fix it. -4 stars. ### 1/5 — Ergathlon *2026-07-06, version 2.14.1* When completing an Ergathlon, all my concept2 equipment times end up under one piece of equipment, for example, bike and row data ends up under skiing, all data ends up under skiing. Used wired and wireless connections, but no luck. It used to work and now it doesn’t, all devices are using the latest firmware / software ### 1/5 — Awful. Completely unreliable. *2026-06-22, version 2.14.0* Lucas ### 1/5 — Not too bad *2026-06-20, version 2.14.0* Does the job. A bit glitchy and errors semi regularly causing data to not log ### 1/5 — Update 2.14 didn’t fix it *2026-06-17, version 2.14.0* Still doesn’t display active HR when connecting pm5 to iPhone with Apple Watch as hr monitor. App on watch after years of working now just asks to start a workout and crashes if you do. The last update broke it. This update didn’t fix it. -4 stars. ### 1/5 — Does not connect to apple iwatch 1/2 the time *2026-06-04, version 2.13.6* Title, this $1200 piece of equipment is held back by this app that cant figure out how to connect to my iwatch. Sometimes it works, times it does not. Luckily my 10+ year old iwatch knows when I row and logs my work out and most importantly, my heart rate. This app sucks ## Most praised reviews (10 highest-rated) ### 5/5 — Best Erg App *2026-08-17, version 2.16.2* This is the definitive erg app. ### 5/5 — Erg for recovery *2026-08-16, version 2.16.2* I’ve been using my ERG rower to recover from chemo and critical illness; specifically to get cardio that hits my whole body, track progress with pm5 data and the app and using the community challenges and events to motivate me on my journey! ### 5/5 — Never failed me *2026-08-10, version 2.16.2* Used this for some years now. It’s easy to use and has all the metrics I need to ensure I am training effectively. Means I can measure my progress and adjust my program accordingly. ### 5/5 — Time & Distance *2026-08-10, version 2.16.2* I’m sure it’s a point made previously but seriously when people are claiming ratings of 1.12 and even 1.04 for distances up to 6K! I’m sure it’s is all in jest but not sure a bot could do those ratings… somerging will break - probably the Concept 2. 🤣🤣 ### 5/5 — Amazing!! *2026-08-07, version 2.16.2* Best workout machine!!! ### 5/5 — Excellent app *2026-08-06, version 2.16.2* All features I could have asked for, love the log book. ### 5/5 — Concept2 App *2026-08-04, version 2.16.2* C2 makes great products and app is easy to us and connect to PM5 ### 5/5 — Great interface *2026-08-04, version 2.16.2* Seamless and so good with Garmin. Sometimes the HR doesn’t synch properly and i can’t figure how to promote my ranked workouts but otherwise really good. ### 5/5 — Love my rower *2026-08-03, version 2.16.2* It’s great love my rower ### 5/5 — Excellent all around *2026-08-01, version 2.16.2* Thank you to C2 for building this out and keeping the updates flowing to refine connectivity, etc. The Strava integration is fantastic. One suggestion for this already feature-filled app: perhaps add a tab or window where the pace calculator on the C2 website would be integrated into the app for easier reference before/after a workout. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*