# EnduroCalc vs RunTriX

The clearest difference is price: RunTriX at Free against EnduroCalc's $0.99. RunTriX also leads on iOS requirement (15.1 vs 18.0). EnduroCalc's advantage is in-app purchases (none vs 2). On update cadence, ads and device support there is nothing between them.

RunTriX is free to download; EnduroCalc costs $0.99 up front. RunTriX sells 2 in-app purchases, starting at $8.99 per year. EnduroCalc asks for nothing beyond the download.

EnduroCalc ships an update every 3 weeks, RunTriX every 4 weeks. The most recent releases landed on October 12, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | EnduroCalc | RunTriX |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | Paid | — |
| Size | 12 MB | 74 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Marco Reinke](https://appshunter.io/developer/1164428495) | [Markus Malz](https://appshunter.io/developer/1848600933) |

## What reviewers say

### EnduroCalc

[App page](https://appshunter.io/ios/app/endurocalc/id6743703780)

This app helps endurance athletes plan training and race days. Calculate target times, paces, energy needs, and nutrition plans for running, cycling, swimming, and triathlon. It offers a minimalist interface designed for focus.

**Highlights:** Pace calculators for various units, Triathlon mode with distance templates, CSS calculator for swimming, Carbohydrate needs calculator, Personalized nutrition plan generation, Ad-free and minimalist design

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is EnduroCalc free?

EnduroCalc costs $0.99, with no in-app purchases.

### Is RunTriX free?

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

### Do EnduroCalc or RunTriX have ads?

Neither EnduroCalc nor RunTriX shows ads.

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

EnduroCalc ships an update every 3 weeks, and RunTriX every 4 weeks. Most recently, EnduroCalc was updated on October 12, 2026 and RunTriX on October 25, 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.*