# COROS vs FLOWBIO

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.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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.

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

## The numbers

| Metric | COROS | FLOWBIO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (796 ratings)](https://appshunter.io/ios/app/coros/id1277625343/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/flowbio/id1614407048/reviews) |
| Number of ratings | **796** | 2 |
| Positive reviews | **54.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 856 MB | 37 MB |
| Requires iOS | **14.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [COROS Wearables Inc.](https://appshunter.io/developer/992834306) | [FLOWBIO LTD](https://appshunter.io/developer/1607898930) |

## What reviewers say

### COROS

[App page](https://appshunter.io/ios/app/coros/id1277625343)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent battery life
- 👍 Intuitive and easy to use app
- 🚀 Quick sync with watch
- 👍 Detailed data and metrics
- 👍 Responsive customer service

**What reviewers complain about**

- 🐛 Connectivity issues with watch
- 🐛 Inaccurate heart rate tracking
- 🐛 Syncing problems with third-party apps
- 🐛 Buggy after recent updates
- 🐛 Confusing user interface changes

**Reported bugs**

- 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**

- 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

[App page](https://appshunter.io/ios/app/flowbio/id1614407048)

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:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*