# Eigen Running vs ChironMotion Vision

The clearest difference is in-app purchases: Eigen Running at none against ChironMotion Vision's 6. ChironMotion Vision's advantage is update cadence (every 6 weeks vs every 5 months) and iOS requirement (16.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. ChironMotion Vision sells 6 in-app purchases, starting at $3.99 per month. Eigen Running asks for nothing beyond the download.

Eigen Running ships an update every 5 months, ChironMotion Vision every 6 weeks. The most recent releases landed on September 23, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Eigen Running | ChironMotion Vision |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Size | 70 MB | 40 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Eigen Running GmbH](https://appshunter.io/developer/1833177524) | [Yi-Fu Chen](https://appshunter.io/developer/1873701789) |

## What reviewers say

### Eigen Running

[App page](https://appshunter.io/ios/app/eigen-running/id6751028383)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChironMotion Vision

[App page](https://appshunter.io/ios/app/chironmotion-vision/id6759504031)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cam Monthly | $3.99 | per month |
| Cam+AI Monthly | $4.99 | per month |
| Lidar+AI monthly | $5.99 | per month |
| Cam Yearly | $39.99 | per year |
| Cam+AI Yearly | $49.99 | per year |
| Lidar+AI yearly | $59.99 | per year |


## Frequently asked questions

### Is Eigen Running free?

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

### Is ChironMotion Vision free?

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

### Do Eigen Running or ChironMotion Vision have ads?

Neither Eigen Running nor ChironMotion Vision shows ads.

### Which is updated more often, Eigen Running or ChironMotion Vision?

Eigen Running ships an update every 5 months, and ChironMotion Vision every 6 weeks. Most recently, Eigen Running was updated on September 23, 2026 and ChironMotion Vision on October 14, 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.*