# RM計算機 vs ChironMotion Vision

The clearest difference is in-app purchases: RM計算機 at none against ChironMotion Vision's 6. RM計算機 also leads on iOS requirement (13.0 vs 16.0). ChironMotion Vision's advantage is device support. On price there is nothing between them.

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

## The numbers

| Metric | RM計算機 | ChironMotion Vision |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 6 weeks |
| Size | 12 MB | 40 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Oshi Kadota](https://appshunter.io/developer/1709843230) | [Yi-Fu Chen](https://appshunter.io/developer/1873701789) |

## What reviewers say

### RM計算機

[App page](https://appshunter.io/ios/app/rm/id6468378350)

**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 RM計算機 free?

RM計算機 is free to download, with no in-app purchases.

### Is ChironMotion Vision free?

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

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*