# K vs CARBINOX

K and CARBINOX both sit at 3.5 stars, but that hides the real split: 39% of K's written reviews are positive against 21% of CARBINOX's. K also leads on ratings volume (319 vs 36). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 3.5 for K against 3.4 for CARBINOX. That said, the two scores are not equally well evidenced: K has 319 ratings behind it against 36, so its average is the more settled of the two. Written reviews are what separate them: 39% of K's written reviews are positive against 21% of CARBINOX's.

K ships an update every 6 weeks, CARBINOX every 5 weeks. The most recent releases landed on September 23, 2026 and July 3, 2026 respectively.

## The numbers

| Metric | K | CARBINOX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (319 ratings)](https://appshunter.io/ios/app/k-watch/id6443482628/reviews)** | [3.4 (36 ratings)](https://appshunter.io/ios/app/carbinox/id6448656715/reviews) |
| Number of ratings | **319** | 36 |
| Positive reviews | **38.9% of reviews** | 21.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 232 MB | 110 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HONGKONG AMAZWEAR TECH CO., LTD.](https://appshunter.io/developer/1812791867) | [OHMIUX LLC](https://appshunter.io/developer/1834311212) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-watch/id6443482628)

Track your daily activity, including steps, distance, and calories burned. Analyze your sleep patterns with detailed insights into deep sleep, light sleep, and awake times. Set activity goals and receive notifications.

**Highlights:** Accurate activity tracking, GPS route tracking, Daily activity goals, In-depth sleep analysis, Vibrating alarm reminder, Push notifications

**In-app purchases:** none


### CARBINOX

[App page](https://appshunter.io/ios/app/carbinox/id6448656715)

Track your daily steps, distance, and calorie consumption with accurate activity monitoring. Analyze your sleep patterns in detail, including deep sleep, light sleep, and awake times. Set activity goals and receive notifications to support a healthy lifestyle.

**Highlights:** Accurate activity tracking, GPS route recording, Daily activity goals, In-depth sleep analysis, Vibrating alarm reminder, Push notifications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is K free?

K is free to download, with no in-app purchases.

### Is CARBINOX free?

CARBINOX is free to download, with no in-app purchases.

### Which has better reviews, K or CARBINOX?

K is rated higher. K averages 3.5 out of 5 from 319 ratings, while CARBINOX averages 3.4 from 36 ratings.

### Do K or CARBINOX have ads?

Neither K nor CARBINOX shows ads.

### Which is updated more often, K or CARBINOX?

K ships an update every 6 weeks, and CARBINOX every 5 weeks. Most recently, K was updated on September 23, 2026 and CARBINOX on July 3, 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.*