Comparison

COROS vs ErgScan

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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

About

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.

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
Read full description

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

COROS4 screens
ErgScan4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
COROS versus ErgScan: the parameters behind the verdict, then further details
ParameterCOROSErgScan
PriceFreeFree
Rating4.3 (796 ratings)4.9 (13 ratings) — better
Positive reviews54.3% of reviews100.0% of reviews — better
Number of ratings796 — better13
Update frequencyEvery 2 weeksEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS14.0 — better15.5
Further details — not scored
Size856 MB135 MB
Age rating4+4+
DeveloperCOROS Wearables Inc.BUNEME KYAKILIKA

Customer experience

COROS

All ratings796 ratings
Positive80.3%
Neutral6.3%
Negative13.4%
Written reviews781 reviews
Positive54.3%
Neutral13.6%
Negative32.1%

ErgScan

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

None

COROS

No in-app purchases

4 purchases

ErgScan

Subscriptions3
  • Weekly Subscription7 Days trial$1.997 Days
  • Monthly7 Days trial$4.991 Month
  • ErgScan Premium Annual7 Days trial$29.991 Year
One-time1
  • ErgScan Premium$12.99

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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