# STF Kronos vs Oberu

The clearest difference is in-app purchases: STF Kronos at none against Oberu's 1. STF Kronos also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.0). Oberu's advantage is update cadence (every 3 days vs every 2 months). On price and ads there is nothing between them.

Both are free to download. Oberu sells 1 one-off in-app purchase. STF Kronos asks for nothing beyond the download.

STF Kronos ships an update every 2 months, Oberu every 3 days. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | STF Kronos | Oberu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (9 ratings)](https://appshunter.io/ios/app/stf-kronos/id1476804951/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 228 MB | 2 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [STUFFACTORY](https://appshunter.io/developer/1476804950) | [Hector Guillermo Serrano Juarez](https://appshunter.io/developer/6790900650) |

## 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


### Oberu

[App page](https://appshunter.io/ios/app/oberu/id6790900648)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Oberu — Full Version | $9.99 | one-time |


## Frequently asked questions

### Is STF Kronos free?

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

### Is Oberu free?

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

### Do STF Kronos or Oberu have ads?

Neither STF Kronos nor Oberu shows ads.

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

STF Kronos ships an update every 2 months, and Oberu every 3 days. Most recently, STF Kronos was updated on October 7, 2026 and Oberu on September 30, 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.*