# Drafting Utility vs 設計用電卓

The clearest difference is update cadence: Drafting Utility at daily against 設計用電卓's every 3 days. 設計用電卓's advantage is iOS requirement (12.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Drafting Utility ships an update daily, 設計用電卓 every 3 days. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Drafting Utility | 設計用電卓 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 3 days |
| Size | 3 MB | 114 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Masaharu Tsukamoto](https://appshunter.io/developer/939316877) | [Kairu Inoue](https://appshunter.io/developer/1808240838) |

## What reviewers say

### Drafting Utility

[App page](https://appshunter.io/ios/app/drafting-utility-trianglecalc/id6738353118)

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

**In-app purchases:** none


### 設計用電卓

[App page](https://appshunter.io/ios/app/id6744571094)

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

**In-app purchases:** none


## Frequently asked questions

### Is Drafting Utility free?

Drafting Utility is free to download, with no in-app purchases.

### Is 設計用電卓 free?

設計用電卓 is free to download, with no in-app purchases.

### Do Drafting Utility or 設計用電卓 have ads?

Both Drafting Utility and 設計用電卓 show ads.

### Which is updated more often, Drafting Utility or 設計用電卓?

Drafting Utility ships an update daily, and 設計用電卓 every 3 days. Most recently, Drafting Utility was updated on October 23, 2026 and 設計用電卓 on October 10, 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.*