# sci.calculator vs 関数電卓

The clearest difference is in-app purchases: 関数電卓 at none against sci.calculator's 1. sci.calculator's advantage is iOS requirement (15.0 vs 26.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. sci.calculator sells 1 one-off in-app purchase. 関数電卓 asks for nothing beyond the download.

sci.calculator ships an update every 5 weeks, 関数電卓 monthly. Both last shipped on November 7, 2026.

## The numbers

| Metric | sci.calculator | 関数電卓 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Size | 49 MB | 8 MB |
| Requires iOS | **15.0** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yukihiro Shioya](https://appshunter.io/developer/1565306192) | [Kouki Yoshimoto](https://appshunter.io/developer/1884780659) |

## What reviewers say

### sci.calculator

[App page](https://appshunter.io/ios/app/scicalculator/id1620728508)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| remove Ads | $1.99 | one-time |


### 関数電卓

[App page](https://appshunter.io/ios/app/scicalc/id6763034302)

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

**In-app purchases:** none


## Frequently asked questions

### Is sci.calculator free?

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

### Is 関数電卓 free?

関数電卓 is free to download, with no in-app purchases.

### Do sci.calculator or 関数電卓 have ads?

Neither sci.calculator nor 関数電卓 shows ads.

### Which is updated more often, sci.calculator or 関数電卓?

sci.calculator ships an update every 5 weeks, and 関数電卓 monthly. Most recently, sci.calculator was updated on November 7, 2026 and 関数電卓 on November 7, 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.*