COROS vs ErgScan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
COROS
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.
- Daily data tracking (sleep, steps, calories)
- Activity summaries for all sports
- Map and route management
- Device and personal settings customization
- Third-party app integration
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The COROS app is your tool to help improve your fitness, download training plans, navigate with confidence, customize your devices, and more. The app will help you to track, and view: - Daily Data such as Sleep, Steps, Calories and more - Activity Summaries for all sports recorded on your watch - The Explore Page to manage maps, routes, and saved locations - Profile Page to customize your watch and personal settings - Connect and sync to 3rd party apps like Apple HealthKit, Google Health Connect, Strava, and more Note: - Sync steps, heart rate and other data to Apple devices using HealthKit - Continuous background use of GPS can decrease battery life
ErgScan
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.
- 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
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ErgScan is the fastest way to log your indoor rowing workouts. Simply take a photo of your Concept2 rowing machine screen (or upload a photo), and ErgScan uses AI to automatically detect and save your workout - no manual typing, no spreadsheets, no screenshots. Designed for rowers, rowing clubs, and indoor rowing athletes, ErgScan turns your erg results into clean, structured workout data in seconds. How it works: - Finish your row - Take a photo of your Concept2 display - ErgScan scans your results and saves your workout automatically Smart AI workout scanning: ErgScan uses advanced AI image recognition to convert photos of your rowing machine screen into accurate workout data, including splits and session details. It works even when lighting or angles aren’t perfect! Sync with your favourite training platforms: You can automatically upload your rowing workouts to Strava, TrainingPeaks, Concept2 Logbook and more! Once connected, your workouts - including split data - sync seamlessly, so your training history stays complete across all platforms. Built for indoor rowing: Optimised for Concept2 rowing machines. Perfect for erg sessions, testing pieces, and training blocks. Ideal for club rowers, competitive athletes, and coaches. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | COROS | ErgScan |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (796 ratings) | 4.9 (13 ratings) — better |
| Positive reviews | 54.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 796 — better | 13 |
| Update frequency | Every 2 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 856 MB | 135 MB |
| Age rating | 4+ | 4+ |
| Developer | COROS Wearables Inc. | BUNEME KYAKILIKA |
Customer experience
COROS
ErgScan
Bugs and requests
COROS
Reported bugs
5 issues- 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
5 requests- 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
Not enough reviews yet to summarise bugs or requests.
In-app purchases
COROS
No in-app purchases
ErgScan
- Weekly Subscription7 Days trial$1.997 Days
- Monthly7 Days trial$4.991 Month
- ErgScan Premium Annual7 Days trial$29.991 Year
- ErgScan Premium$12.99









