Comparison

ErgRace Online vs Fatometer

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

Head to head
About

ErgRace Online

Participate in organized online races using your Concept2 ergometer from anywhere in the world. Compete in individual or team events for time, distance, or calories, with live race displays and online results. Requires a PM5 monitor and competition code.

Highlights
  • Online erg races worldwide
  • Supports RowErg, SkiErg, BikeErg
  • Individual and team races
  • Races by time, distance, or calories
  • Live race display
  • Online results
  • Concept2 Logbook integration
Features
Read full description

ErgRace Online allows people anywhere in the world to take part in organized online races on Concept2 ergs. Athletes need the app, a PM5 and the code for the competition provided by the race organizer. To organize a competition, please go to concept2.com/ergraceonline. Features Race from anywhere in the world Works for Concept2 RowErg, SkiErg and BikeErg Individual or team races Races can be for time, distance or Calories Live race display Results available online Individual results are sent to your Concept2 Logbook account System Requirements ErgRace Online does not support racing with PM3 or PM4s. Please make sure your PM5 is updated with the latest firmware. There is a short test race that runs automatically every 10 minutes. We recommend joining this well before your first race. This will allow you to make sure your system is able to take part in ErgRace Online as well as making you familiar with how it works.

About

Fatometer

Features
Read full description

Turn your weight loss into a fun activity! Fatometer shows you in real time how much effort it takes to burn the foods you eat. Watch your favorite foods disappear as you exercise. Make weight loss a fun and motivating challenge: set goals, visualize your efforts, and finally understand how your body eliminates every calorie. Already available: • Personal settings (weight, height, age) to estimate your basal energy needs and determine how fast your body burns calories. • Choose a physical activity to start a session (slow, normal, or fast walking, running, cycling, strength training…) with calorie burn calculated using standardized MET values and your body’s estimated burn rate. • Fun visualization of foods burned in real time (e.g., a fry, a burger, etc.): finally, watch your effort progress minute by minute. • Set goals: today, burn 10 fries; in a month, eliminate a full burger! • Check your “burned foods” board to track your efforts and progress. Coming soon: • Smart tracking of your eating habits to raise awareness of unhealthy practices and discover easy optimizations—without overhauling your entire diet. This first version is the starting point of a new way to understand your body. Your feedback is essential to help the app evolve. Important: This app is designed for fun and informational purposes. It is not a substitute for medical advice. For any health-related goals, please consult a professional.

Screenshots

ErgRace Online4 screens
Fatometer4 screens

Verdict

The call

The clearest difference is update cadence: Fatometer at every 3 weeks against ErgRace Online's every 2 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ErgRace Online ships an update every 2 months, Fatometer every 3 weeks. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

Scorecard1 real difference · 9 level
ErgRace Online versus Fatometer: the parameters behind the verdict, then further details
ParameterErgRace OnlineFatometer
PriceFreeFree
Rating3.2 (13 ratings) — better—
Positive reviews44.4% of reviews—
Number of ratings13 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS1615.1 — better
Further details — not scored
Size61 MB60 MB
Age rating4+4+
DeveloperConcept2, Inc.SPIKE FLOW

In-app purchases

None

ErgRace Online

No in-app purchases

None

Fatometer

No in-app purchases

Questions

Is ErgRace Online free?
ErgRace Online is free to download, with no in-app purchases.
Is Fatometer free?
Fatometer is free to download, with no in-app purchases.
Do ErgRace Online or Fatometer have ads?
Neither ErgRace Online nor Fatometer shows ads.
Which is updated more often, ErgRace Online or Fatometer?
ErgRace Online ships an update every 2 months, and Fatometer every 3 weeks. Most recently, ErgRace Online was updated on October 4, 2026 and Fatometer on October 6, 2026.

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