# 物理計算機 vs cFormula

The clearest difference is in-app purchases: 物理計算機 at none against cFormula's 1. cFormula's advantage is device support and iOS requirement (13.0 vs 15.5). On price there is nothing between them.

Both are free to download. cFormula sells 1 one-off in-app purchase. 物理計算機 asks for nothing beyond the download.

## The numbers

| Metric | 物理計算機 | cFormula |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Every 5 months |
| Size | 7 MB | 13 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Risako Asai](https://appshunter.io/developer/1671273580) | [疆 边](https://appshunter.io/developer/1124320934) |

## What reviewers say

### 物理計算機

[App page](https://appshunter.io/ios/app/id6443504511)

**In-app purchases:** none


### cFormula

[App page](https://appshunter.io/ios/app/cformula/id6475750528)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fully unlock app | $1.99 | one-time |


## Frequently asked questions

### Is 物理計算機 free?

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

### Is cFormula free?

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

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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.*