# ErgData vs Hydrow

The clearest difference is in-app purchases: ErgData at none against Hydrow's 1. ErgData also leads on iOS requirement (16.0 vs 18.6). Hydrow's advantage is review sentiment (59% vs 45%). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Hydrow sells 1 in-app purchase, starting at $29.99 per month. ErgData asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for ErgData against 4.8 for Hydrow. Both are backed by a comparable volume of ratings — 5.1K and 3.3K respectively. Written reviews are what separate them: 45% of ErgData's written reviews are positive against 59% of Hydrow's.

ErgData ships an update every 2 weeks, Hydrow every 3 weeks. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ErgData | Hydrow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (5.1K ratings)](https://appshunter.io/ios/app/ergdata/id561716382/reviews) | **[4.8 (3.3K ratings)](https://appshunter.io/ios/app/hydrow/id1458653991/reviews)** |
| Number of ratings | **5.1K** | 3.3K |
| Positive reviews | 45.4% of reviews | **59.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 74 MB | 188 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Concept2, Inc.](https://appshunter.io/developer/446481798) | [Hydrow, Inc.](https://appshunter.io/developer/1371506837) |

## What reviewers say

### ErgData

[App page](https://appshunter.io/ios/app/ergdata/id561716382)

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:** Apple Watch app

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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

**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

**Requested features**

- Add friend mode
- Integrate Apple Watch support
- Add manual workout entry
- Implement landscape mode for iPad
- Integrate pace calculator


### Hydrow

[App page](https://appshunter.io/ios/app/hydrow/id1458653991)

Access over 5,000 on-and-off rower workouts led by elite athletes filmed in beautiful locations. Track performance, connect with a community, and share achievements. Compatible with Concept2 PM5 rowers for integrated metrics and leaderboards.

**Highlights:** 5,000+ on-and-off rower workouts, Elite athlete instructors, Global scenic filming locations, Performance tracking, Rowing community features, Strava and Apple Health integration, Concept2 PM5 rower compatibility

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Digital Basic | $29.99 | per month |

**What reviewers like**

- 🚀 Smooth motion
- 🚀 Engaging video coaching
- 👍 Variety of workouts
- 👍 Motivating instructors
- 👍 Convenient for travel

**What reviewers complain about**

- 🐛 App issues (no iPad support, audio sync, etc.)
- 🔒 Lack of account management features
- 💰 Expensive subscription cost
- 💰 Requires expensive rower hardware

**Reported bugs**

- App crashes during workouts
- Difficulty logging in or syncing account
- Inconsistent video/audio quality

**Requested features**

- Ability to search/filter workouts
- More data analytics and tracking
- Integration with other fitness devices/apps
- Ability to manage account on app/website


## Frequently asked questions

### Is ErgData free?

ErgData is free to download, with no in-app purchases.

### Is Hydrow free?

Hydrow is free to download, with in-app purchases available.

### Which has better reviews, ErgData or Hydrow?

Hydrow is rated higher. ErgData averages 4.7 out of 5 from 5.1K ratings, while Hydrow averages 4.8 from 3.3K ratings.

### Do ErgData or Hydrow have ads?

Neither ErgData nor Hydrow shows ads.

### Which is updated more often, ErgData or Hydrow?

ErgData ships an update every 2 weeks, and Hydrow every 3 weeks. Most recently, ErgData was updated on October 13, 2026 and Hydrow on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*