# ErgData vs asensei rowing

The clearest difference is ads: ErgData at none against asensei rowing's shown. ErgData also leads on monetization model (free vs free with in-app purchases) and update cadence (every 2 weeks vs every 2 months). asensei rowing's advantage is review sentiment (76% vs 45%) and iOS requirement (14.0 vs 16.0). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for ErgData against 4.8 for asensei rowing. Both are backed by a comparable volume of ratings — 5.1K and 4K respectively. Written reviews are what separate them: 45% of ErgData's written reviews are positive against 76% of asensei rowing's.

ErgData ships an update every 2 weeks, asensei rowing every 2 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | ErgData | asensei rowing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (5.1K ratings)](https://appshunter.io/ios/app/ergdata/id561716382/reviews) | **[4.8 (4K ratings)](https://appshunter.io/ios/app/asensei-rowing/id1335539383/reviews)** |
| Number of ratings | **5.1K** | 4K |
| Positive reviews | 45.4% of reviews | **76.2% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 74 MB | 95 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Concept2, Inc.](https://appshunter.io/developer/446481798) | [ASensei Inc](https://appshunter.io/developer/998668146) |

## 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


### asensei rowing

[App page](https://appshunter.io/ios/app/asensei-rowing/id1335539383)

Enhance your rowing performance with guided workouts from world-class athletes and AI coaching. Connect to compatible rowing machines for real-time analysis and personalized training programs designed to improve your technique and fitness.

**Highlights:** Personalized training programs, World-class athlete coaching, Real-time performance analysis, AI-driven technique correction, Hundreds of guided workouts, Compatibility with major rowing machines

**In-app purchases:** none

**What reviewers like**

- 👍 Great coaching and feedback
- 🚀 Seamless integration with Concept 2 rower
- 💡 Personalized workouts and performance tracking
- 🤩 Motivating and engaging experience
- 🌟 Excellent customer support

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- 🕹️ Unintuitive user interface
- 🕰️ Slow workout downloads
- 💾 Limited data tracking and export options
- 🔇 Music volume issues

**Reported bugs**

- Inconsistent pace and split time calculations
- Workout history not saving properly
- Bluetooth connectivity problems

**Requested features**

- Ability to select and customize workout programs
- Integration with Apple Health and Strava
- More detailed performance analytics and progress tracking
- Live/virtual rowing classes and competitions
- Support for more rowing machine models


## Frequently asked questions

### Is ErgData free?

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

### Is asensei rowing free?

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

### Which has better reviews, ErgData or asensei rowing?

asensei rowing is rated higher. ErgData averages 4.7 out of 5 from 5.1K ratings, while asensei rowing averages 4.8 from 4K ratings.

### Do ErgData or asensei rowing have ads?

asensei rowing shows ads; ErgData does not.

### Which is updated more often, ErgData or asensei rowing?

ErgData ships an update every 2 weeks, and asensei rowing every 2 months. Most recently, ErgData was updated on September 23, 2026 and asensei rowing on September 20, 2026.

---

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