# ChironMotion Vision vs 3DSeg/JointAngles

The clearest difference is in-app purchases: 3DSeg/JointAngles at none against ChironMotion Vision's 6. ChironMotion Vision's advantage is iOS requirement (16.0 vs 26.2). 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. 3DSeg/JointAngles asks for nothing beyond the download.

## The numbers

| Metric | ChironMotion Vision | 3DSeg/JointAngles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/3dsegjointangles/id6761221410/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | — | Free |
| Size | 40 MB | 5 MB |
| Requires iOS | **16.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yi-Fu Chen](https://appshunter.io/developer/1873701789) | [Boyi Dai](https://appshunter.io/developer/1888293968) |

## What reviewers say

### 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 |


### 3DSeg/JointAngles

[App page](https://appshunter.io/ios/app/3dsegjointangles/id6761221410)

This app measures three-dimensional angles of body segments and joints in real-time using your iPhone's motion sensors. It is designed for researchers, clinicians, and trainers to analyze movement without external hardware. Data can be exported for further analysis.

**Highlights:** Real-time 3D angle display at 60 Hz, Six selectable Cardan/Euler rotation sequences, Calibrate to any starting position, Built-in angle time-series plot, CSV export via iOS Share Sheet, Works completely offline

**In-app purchases:** none


## Frequently asked questions

### Is ChironMotion Vision free?

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

### Is 3DSeg/JointAngles free?

3DSeg/JointAngles is free to download, with no in-app purchases.

### Do ChironMotion Vision or 3DSeg/JointAngles have ads?

Neither ChironMotion Vision nor 3DSeg/JointAngles shows ads.

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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.*