Comparison

Swelldone vs Ergometer Space

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

Head to head
About

Swelldone

Experience an open-world paddling game with realistic wave physics and dynamic swells. Connect your erg for immersive training, race head-to-head in multiplayer, and explore iconic real-world venues. Choose from various paddlers, vessels, and workouts to enhance your fitness and enjoy virtual ocean adventures.

Highlights
  • Open-world ocean with realistic wave physics
  • Multiplayer virtual training and racing
  • Selectable paddlers, vessels, and real-world venues
  • Ergometer and trainer connectivity (FTMS)
  • Customizable and pre-set workout library
  • Sync with Apple Health, Strava, C2 Logbook
Features
Read full description

Swelldone is an open-world paddling training game. The concept is simple: choose your paddler, pick your vessel, and go find some virtual waves and have fun. Learn and experience surfing the open ocean. If you have an erg, connect to it and get fully immersed in your training! If you paddle, you get it. FEATURES: - Infinite ocean with accurate waves physics model, dynamic and adjustable swells - Multiplayer head-to-head gameplay for virtual training and racing - Choose your course from iconic, real-world venues - Choose your paddler from various avatars - Choose your vessel from various boats including SUPs, outrigger canoes, surfskis, Sprint C1, Sprint K1, rowing sculls, marathon canoes, and dragon boats - Connect to your paddle ergs, rowers, bike trainers that support FTMS protocol for immersive training. - Choose from a library of workouts directly from the app or create your own custom workout - Sync your workouts to Apple Health, Strava, C2 Logbook - Designed to work with the Concept2 PM5 console, KayakPro GenesisPort console, Whipr, and Wahoo sensors. OHANA MEMBERSHIP Subscription Enjoy unlimited access to everything when connected to erg for Virtual Training. Row or Paddle as much as you want with Swelldone's monthly subscription of $9.99. Prices may vary from country to country. Payment will be charged to your App Store Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can manage or turn off auto-renew in your Account settings at any time after purchase. Terms of Service: https://www.swelldoneapp.com/terms-of-service Privacy Policy: https://www.swelldoneapp.com/privacy-policy

About

Ergometer Space

Features
Read full description

Ergometer rowing app for concept2 PM5 The app support blue tooth for PM5. Features - Create your own dashboard with values and gauges and other widgets - Row together over the internet. (Alone or as a team) * See each other and projected positions * Publish a high score * Chat using text * Traffic light * login as observer to watch a race and collect the end times. * Row together as one team and race against other teams - Row in 3d or using an VR headset. - You can load your own map with a predefined course and show your rowing position on the map. - View your power curve and compare it with an base curve - Make your own base curve - View history of your race - Row stroke advisor which bases is based on the user defined base curve. - Get warnings when user defined stroke value limits are exceeded - Plugins (which you can create using the ergometer space website) - Share your power curve with other users. This way you can your train together over the internet. - Ad free and your data stays private. (this app is made for fun, not for making money) - Record an replay of all the ergometer data plus an optional video. The import/export function allows you to give this data to a coach for further analysis. - Test your condition in the 3d shark game - Spark lines in the value widgets to quickly see trends. - Connect to a blue tooth heart rate device or include the heart rate data from the concept2 performance monitor. - Show your heart rate as percentage of the total max rate or as graph in a heart rate zone widget. The zones and max heart rate are configurable. More information: https://tijmenvangulik.github.io/Ergometerspace/ You can also try the application online https://ergometer-space.org Some platforms have more features than the other (for example some have usb support). To help you make your choice: https://tijmenvangulik.github.io/Ergometerspace/FeatureTable.html

Screenshots

Swelldone4 screens
Ergometer Space3 screens

Verdict

The call

The clearest difference is in-app purchases: Ergometer Space at none against Swelldone's 3. Ergometer Space also leads on update cadence (every 6 days vs every 3 weeks) and iOS requirement (11.0 vs 16.0). On price, ads and device support 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. Swelldone sells 3 in-app purchases, starting at $3.99 per 7 days. Ergometer Space asks for nothing beyond the download.

UpkeepUpdate frequency

Swelldone ships an update every 3 weeks, Ergometer Space every 6 days. The most recent releases landed on August 13, 2026 and September 6, 2026 respectively.

Scorecard3 real differences · 7 level
Swelldone versus Ergometer Space: the parameters behind the verdict, then further details
ParameterSwelldoneErgometer Space
PriceFreeFree
Rating4.2 (102 ratings) — better—
Positive reviews44.4% of reviews—
Number of ratings102 — better—
Update frequencyEvery 3 weeksEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, Apple TViPhone, iPad, iPod
Requires iOS16.011.0 — better
Further details — not scored
Size1.2 GB64 MB
Age rating4+4+
Developer5007490 Ontario Ltd.Tijmen van Gulik

In-app purchases

3 purchases

Swelldone

Subscriptions3
  • Wiki Member (Weekly)$3.997 Days
  • Ohana Membership$9.991 Month
  • Hoku Membership (Annual)$99.991 Year
None

Ergometer Space

No in-app purchases

Questions

Is Swelldone free?
Swelldone is free to download, with in-app purchases available.
Is Ergometer Space free?
Ergometer Space is free to download, with no in-app purchases.
Do Swelldone or Ergometer Space have ads?
Neither Swelldone nor Ergometer Space shows ads.
Which is updated more often, Swelldone or Ergometer Space?
Swelldone ships an update every 3 weeks, and Ergometer Space every 6 days. Most recently, Swelldone was updated on August 13, 2026 and Ergometer Space on September 6, 2026.

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