# Orunning vs STF Kronos

The clearest difference is review sentiment: STF Kronos at 100% against Orunning's 23%. STF Kronos also leads on rating (4.7 vs 3.0). Orunning's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (122 vs 9). On price, ads, in-app purchases and monetization model there is nothing between them.

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

STF Kronos holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Orunning has 122 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 23% of Orunning's written reviews are positive against 100% of STF Kronos's.

Orunning ships an update every 3 weeks, STF Kronos every 2 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Orunning | STF Kronos |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (122 ratings)](https://appshunter.io/ios/app/orunning/id1262737228/reviews) | **[4.7 (9 ratings)](https://appshunter.io/ios/app/stf-kronos/id1476804951/reviews)** |
| Number of ratings | **122** | 9 |
| Positive reviews | 23.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 81 MB | 228 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Synergy Technologies Limited](https://appshunter.io/developer/1107824368) | [STUFFACTORY](https://appshunter.io/developer/1476804950) |

## What reviewers say

### Orunning

[App page](https://appshunter.io/ios/app/orunning/id1262737228)

This app pairs with a sport smartwatch to provide real-time performance monitoring, including steps, distance, calories, sleep quality, and heart rate. It supports multiple activity types and delivers smartphone notifications directly to your wrist.

**Highlights:** Real-time performance monitoring, Step, distance, and calorie tracking, Sleep quality analysis, Heart rate monitoring, Multi-sport activity support, Smartphone notifications

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient performance
- 💡 Good value for money

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔋 Battery life problems
- 🕰️ Inaccurate time/date
- 💤 Sleep tracking not working

**Reported bugs**

- Frequent app crashes
- Syncing problems between watch and app
- Inconsistent step/activity tracking

**Requested features**

- Custom watch faces
- More detailed health/fitness tracking
- Improved notification support


### 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


## Frequently asked questions

### Is Orunning free?

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

### Is STF Kronos free?

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

### Which has better reviews, Orunning or STF Kronos?

STF Kronos is rated higher. Orunning averages 3.0 out of 5 from 122 ratings, while STF Kronos averages 4.7 from 9 ratings.

### Do Orunning or STF Kronos have ads?

Neither Orunning nor STF Kronos shows ads.

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

Orunning ships an update every 3 weeks, and STF Kronos every 2 months. Most recently, Orunning was updated on September 23, 2026 and STF Kronos on September 20, 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.*