# RunTriX vs Sthenos

The clearest difference is price: RunTriX at Free against Sthenos's $3.99. RunTriX also leads on iOS requirement (15.1 vs 18.0). Sthenos's advantage is in-app purchases (none vs 2) and update cadence (every 11 days vs every 4 weeks). On ads and device support there is nothing between them.

RunTriX is free to download; Sthenos costs $3.99 up front. RunTriX sells 2 in-app purchases, starting at $8.99 per year. Sthenos asks for nothing beyond the download.

RunTriX ships an update every 4 weeks, Sthenos every 11 days. The most recent releases landed on September 28, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | RunTriX | Sthenos |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 11 days** |
| Size | 74 MB | 5 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Markus Malz](https://appshunter.io/developer/1848600933) | [Georgios Stavropoulos](https://appshunter.io/developer/1792154671) |

## What reviewers say

### RunTriX

[App page](https://appshunter.io/ios/app/runtrix/id6754517046)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RunTriX Pro | $8.99 | per year |
| RunTriX Pro | $17.99 | one-time |


### Sthenos

[App page](https://appshunter.io/ios/app/sthenos/id6760965966)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is RunTriX free?

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

### Is Sthenos free?

Sthenos costs $3.99, with no in-app purchases.

### Do RunTriX or Sthenos have ads?

Neither RunTriX nor Sthenos shows ads.

### Which is updated more often, RunTriX or Sthenos?

RunTriX ships an update every 4 weeks, and Sthenos every 11 days. Most recently, RunTriX was updated on September 28, 2026 and Sthenos on September 17, 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.*