# COROS vs ErgScan

The clearest difference is review sentiment: ErgScan at 100% against COROS's 54%. ErgScan also leads on rating (4.9 vs 4.3) and update cadence (every 8 days vs every 2 weeks). COROS's advantage is in-app purchases (none vs 4) and ratings volume (796 vs 13). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ErgScan sells 4 in-app purchases, starting at $1.99 per 7 days. COROS asks for nothing beyond the download.

ErgScan holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: COROS has 796 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 54% of COROS's written reviews are positive against 100% of ErgScan's.

COROS ships an update every 2 weeks, ErgScan every 8 days. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | COROS | ErgScan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (796 ratings)](https://appshunter.io/ios/app/coros/id1277625343/reviews) | **[4.9 (13 ratings)](https://appshunter.io/ios/app/ergscan-rowing-workouts-log/id1661654775/reviews)** |
| Number of ratings | **796** | 13 |
| Positive reviews | 54.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 856 MB | 135 MB |
| Requires iOS | **14.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [COROS Wearables Inc.](https://appshunter.io/developer/992834306) | [BUNEME KYAKILIKA](https://appshunter.io/developer/1540545215) |

## What reviewers say

### COROS

[App page](https://appshunter.io/ios/app/coros/id1277625343)

Enhance your fitness journey with detailed daily data, activity summaries, and advanced navigation tools. Customize your devices, download training plans, and seamlessly sync with popular third-party health platforms.

**Highlights:** Daily data tracking (sleep, steps, calories), Activity summaries for all sports, Map and route management, Device and personal settings customization, Third-party app integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent battery life
- 👍 Intuitive and easy to use app
- 🚀 Quick sync with watch
- 👍 Detailed data and metrics
- 👍 Responsive customer service

**What reviewers complain about**

- 🐛 Connectivity issues with watch
- 🐛 Inaccurate heart rate tracking
- 🐛 Syncing problems with third-party apps
- 🐛 Buggy after recent updates
- 🐛 Confusing user interface changes

**Reported bugs**

- App crashes frequently
- Inability to log in or sync data
- Inconsistent data between watch and app
- Elevation/GPS tracking issues
- Strength training mode not working properly

**Requested features**

- Add more watch face options
- Improve sleep tracking accuracy
- Integrate with Apple Health app
- Add ability to edit/delete activities
- Provide more customization options


### ErgScan

[App page](https://appshunter.io/ios/app/ergscan-rowing-workouts-log/id1661654775)

Effortlessly log indoor rowing machine workouts by taking a photo of your screen. AI automatically detects and saves your session data, eliminating manual entry. Seamlessly sync your workouts with popular training platforms like Strava and TrainingPeaks.

**Highlights:** AI-powered photo scanning for workout data, Automatic detection of splits and session details, Syncs with Strava, TrainingPeaks, Concept2 Logbook, Optimized for Concept2 rowing machines, Structured workout data without manual entry

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Monthly | $4.99 | per month |
| ErgScan Premium Annual | $29.99 | per year |
| ErgScan Premium | $12.99 | one-time |


## Frequently asked questions

### Is COROS free?

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

### Is ErgScan free?

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

### Which has better reviews, COROS or ErgScan?

ErgScan is rated higher. COROS averages 4.3 out of 5 from 796 ratings, while ErgScan averages 4.9 from 13 ratings.

### Do COROS or ErgScan have ads?

Neither COROS nor ErgScan shows ads.

### Which is updated more often, COROS or ErgScan?

COROS ships an update every 2 weeks, and ErgScan every 8 days. Most recently, COROS was updated on October 20, 2026 and ErgScan 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.*