Comparison

COROS vs FLOWBIO

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

FLOWBIO

This app analyzes sweat data to provide personalized hydration and recovery strategies for athletes. It connects to a sweat sensor to track fluid and sodium loss, offering tailored plans and pre-session predictions to optimize performance.

Highlights
  • Personalized hydration strategies
  • Tailored recovery plans
  • Pre-session performance predictions
  • Intake logging
  • Support for electrolyte brands
  • Integrations with Garmin, Wahoo, Zwift, Coros
Features
Read full description

Dehydration, cramps, poor recovery? Most athletes face these problems because they don’t know what they’re really losing in sweat. The FLOWBIO System solves this. By pairing the world’s most accurate sweat sensor with the FLOWBIO App, you can finally connect sweat data to your performance, recovery, and progress. FLOWBIO Sensor: Measures your sweat in real time with lab-grade accuracy, tracking your unique fluid and sodium losses in every run, ride, and race. FLOWBIO App - Transforms your sweat data into simple, personalised hydration strategies. - Tailored recovery plans built from your actual losses. - Pre-session predictions so you start properly prepared. - Intake logging and support for your preferred electrolyte brands. Integrations: - Garmin - Wahoo - Zwift - Coros

Screenshots

COROS4 screens
FLOWBIO4 screens

Verdict

The call

The clearest difference is review sentiment: COROS at 54% against FLOWBIO's 0%. COROS also leads on rating (4.3 vs 3.0) and ratings volume (796 vs 2). On price, update cadence, ads and in-app purchases 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.

ReceptionRating · Positive reviews · Number of ratings

COROS holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: COROS has 796 ratings behind it against 2, 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 0% of FLOWBIO's.

UpkeepUpdate frequency

COROS ships an update every 2 weeks, FLOWBIO fortnightly. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

Scorecard4 real differences · 6 level
COROS versus FLOWBIO: the parameters behind the verdict, then further details
ParameterCOROSFLOWBIO
PriceFreeFree
Rating4.3 (796 ratings) — better3.0 (2 ratings)
Positive reviews54.2% of reviews — better0.0% of reviews
Number of ratings796 — better2
Update frequencyEvery 2 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod — betteriPhone
Requires iOS14.0 — better26.0
Further details — not scored
Size856 MB37 MB
Age rating4+17+
DeveloperCOROS Wearables Inc.FLOWBIO LTD

Customer experience

COROS

All ratings796 ratings
Positive80.2%
Neutral6.3%
Negative13.6%
Written reviews780 reviews
Positive54.2%
Neutral13.6%
Negative32.2%

FLOWBIO

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

FLOWBIO

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

COROS

No in-app purchases

None

FLOWBIO

No in-app purchases

Questions

Is COROS free?
COROS is free to download, with no in-app purchases.
Is FLOWBIO free?
FLOWBIO is free to download, with no in-app purchases.
Which has better reviews, COROS or FLOWBIO?
COROS is rated higher. COROS averages 4.3 out of 5 from 796 ratings, while FLOWBIO averages 3.0 from 2 ratings.
Do COROS or FLOWBIO have ads?
Neither COROS nor FLOWBIO shows ads.
Which is updated more often, COROS or FLOWBIO?
COROS ships an update every 2 weeks, and FLOWBIO fortnightly. Most recently, COROS was updated on October 13, 2026 and FLOWBIO on October 5, 2026.

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