Comparison

ErgScan vs ImersU

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

Head to head
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/

About

ImersU

Experience indoor rowing like never before with virtual, real-world courses. Train or race against AI, customize your environment, and connect with your rowing machine for an immersive fitness journey.

Highlights
  • Virtual real-world rowing courses
  • Customizable time of day and weather
  • AI boat racing
  • Connects with rowing machines via Bluetooth FTMS
  • Flow Row mode for non-connected ergometers
  • Multi-screen display support
Read full description

ImersU ROW helps make indoor rowing more enjoyable and rewarding by bringing the outdoors indoors. Row virtually on stunning, real-world courses, select time of day, weather, and viewing perspective. Train or Race against AI boats, challenge yourself, or take yourself out for a paddle. Pair with your ergo for a connected row or simply choose your speed and get into the flow so you can enjoy mersU on every rowing ergo. Rowing is the most efficient form of training compared to running and cycling, with over 86% of muscle groups being used. Many people have shied away from indoor rowing as it was considered boring. But no more. Combine the most efficient form of indoor training with stunning content, game play, and a growing community, and rowing is becoming the go-to choice for indoor training. Join the growing number of people making indoor rowing a central part of their fitness regime. With imersU, you can row in multiple locations, including Tokyo, Paris, Henley, and The Tideway. Turn your home rowing machine or gym session into a journey shared by elite athletes. imersU uses standard Bluetooth FTMS protocol so you can connect to compatible devices; these include Concept 2 PM5 and the WaterRower S4. There is also a Companion App, should you wish to connect on Windows and race against up to 7 other competitors when in the same room. The imersU content has been created to be displayed on all the latest phones and tablets as well as on high-powered MACS and PCs, so you can choose how you experience imersU ROW. At its most immersive, imersU can be displayed on super-sized screens on 3 walls to give you that on-water experience of having other rowers ‘on your shoulder. The app comes with NDI screen settings for connection to multiple monitors to make this possible. For the first time, you can join a rowing community whilst creating a rowing environment that suits your needs. An equivalent of a Maybach to an A-Class. Some users may not have the latest ergo that can connect to the imersU app, but they still want to be able to row on iconic courses. imersU has FLOW ROW, a feature that lets the user set a split time and then row in FLOW with the course environment as the ergo speed is matched to the selected split time. imersU will turn every training session into an experience that will keep you motivated and engaged to help you become fitter and stronger. WHY CHOOSE imersU ROW: • Stunning graphics created in Unreal Engine 5, an industry pioneer in creating virtual environments, are designed to inspire you as if you were in the great outdoors, but where you control the weather. • The ability to connect to multiple screens to create an indoor rowing environment that can be fully immersive and extensive, as you choose, or simply enjoyed on a tablet. • Use the benefits of virtual environments to add in AI boats to race against and help you focus on your goals. • Choose your time of day, weather, and viewing perspective, and track how your performance can be affected by your environment. • Enjoy imersU on every single rowing ergo with the FLOW ROW feature as well as enjoy connected rowing on leading Bluetooth-enabled ergos. SUPPORTING THE COMMUNITY imersU believes in the benefits that rowing can bring to the community. As a result, imersU has special rates and arrangements with all those under 15, schools and rowing clubs to enable as many people as possible to experience rowing in the places rowed by the elite rowers. For everyone else, imersU can be enjoyed in an unlimited way each month for £14.99, with some prices affected by currency. Your involvement in imersU will help those new to rowing enjoy the benefits indoor rowing brings. Please see Terms of Use at https://row.imersu.com/register

Screenshots

ErgScan4 screens
ImersU4 screens

Verdict

The call

The clearest difference is rating: ErgScan at 4.9 against ImersU's 3.0. ErgScan also leads on review sentiment (100% vs 60%) and update cadence (every 8 days vs every 2 weeks). ImersU's advantage is in-app purchases (none vs 4) and device support (4 vs 2). On price, ads 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. ImersU asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ErgScan holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: ErgScan has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of ErgScan's written reviews are positive against 60% of ImersU's.

UpkeepUpdate frequency

ErgScan ships an update every 8 days, ImersU every 2 weeks. The most recent releases landed on June 20, 2026 and September 10, 2026 respectively.

Scorecard7 real differences · 3 level
ErgScan versus ImersU: the parameters behind the verdict, then further details
ParameterErgScanImersU
PriceFreeFree
Rating4.9 (13 ratings) — better3.0 (2 ratings)
Positive reviews100.0% of reviews — better60.0% of reviews
Number of ratings13 — better2
Update frequencyEvery 8 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.515.0 — better
Further details — not scored
Size135 MB259 MB
Age rating4+4+
DeveloperBUNEME KYAKILIKAImmersive Gym Company Limited

Customer experience

ErgScan

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

ImersU

All ratings2 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral40.0%
Negative0.0%

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
None

ImersU

No in-app purchases

Questions

Is ErgScan free?
ErgScan is free to download, with in-app purchases available.
Is ImersU free?
ImersU is free to download, with no in-app purchases.
Which has better reviews, ErgScan or ImersU?
ErgScan is rated higher. ErgScan averages 4.9 out of 5 from 13 ratings, while ImersU averages 3.0 from 2 ratings.
Do ErgScan or ImersU have ads?
Neither ErgScan nor ImersU shows ads.
Which is updated more often, ErgScan or ImersU?
ErgScan ships an update every 8 days, and ImersU every 2 weeks. Most recently, ErgScan was updated on June 20, 2026 and ImersU on September 10, 2026.

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