# STF Kronos vs FyndFit

The clearest difference is in-app purchases: STF Kronos at none against FyndFit's 7. STF Kronos also leads on iOS requirement (13.0 vs 16). FyndFit's advantage is update cadence (weekly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. FyndFit sells 7 in-app purchases, starting at $1.49 per month. STF Kronos asks for nothing beyond the download.

STF Kronos ships an update every 2 months, FyndFit weekly. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | STF Kronos | FyndFit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (9 ratings)](https://appshunter.io/ios/app/stf-kronos/id1476804951/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 64.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | — |
| Size | 228 MB | 185 MB |
| Requires iOS | **13.0** | 16 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [STUFFACTORY](https://appshunter.io/developer/1476804950) | [APPBUILDR LIMITED](https://appshunter.io/developer/1560764844) |

## What reviewers say

### STF Kronos

[App page](https://appshunter.io/ios/app/stf-kronos/id1476804951)

This app syncs with your smartwatch to monitor your fitness performance across various sports. Track heart rate, steps, and sedentary periods to analyze your health metrics. It offers additional features based on your specific smartwatch model.

**Highlights:** Smartwatch synchronization, Sports performance monitoring, Heart rate tracking, Step counting, Sedentary period analysis, iOS Health App integration

**Features:** Vision Pro support

**In-app purchases:** none


### FyndFit

[App page](https://appshunter.io/ios/app/fyndfit/id1602758207)

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad Free Monthly | $1.49 | per month |
| Fit Plus Monthly | $8.99 | per month |
| Ad Free Yearly | $10.99 | per year |
| Fit Max 3 Months | $31.99 | per 3 months |
| Fit Plus 6 Months | $42.99 | per 6 months |
| Fit Max 6 Months | $54.99 | per 6 months |
| Fit Max Yearly | $79.99 | per year |


## Frequently asked questions

### Is STF Kronos free?

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

### Is FyndFit free?

FyndFit is free to download, with in-app purchases available.

### Do STF Kronos or FyndFit have ads?

Neither STF Kronos nor FyndFit shows ads.

### Which is updated more often, STF Kronos or FyndFit?

STF Kronos ships an update every 2 months, and FyndFit weekly. Most recently, STF Kronos was updated on October 24, 2026 and FyndFit on October 19, 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.*