# 智能计算器 vs Drafting Utility

The clearest difference is in-app purchases: Drafting Utility at none against 智能计算器's 4. Drafting Utility also leads on update cadence (daily vs every 5 days). 智能计算器's advantage is ads (none vs shown) and iOS requirement (13.0 vs 16.6). On price and device support there is nothing between them.

Both are free to download. 智能计算器 sells 4 in-app purchases, starting at $0.99 per month. Drafting Utility asks for nothing beyond the download.

智能计算器 ships an update every 5 days, Drafting Utility daily. Both last shipped on October 25, 2026.

## The numbers

| Metric | 智能计算器 | Drafting Utility |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 days | **Daily** |
| Size | 16 MB | 3 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hebei jiudao network technology co., ltd](https://appshunter.io/developer/1683067256) | [Masaharu Tsukamoto](https://appshunter.io/developer/939316877) |

## What reviewers say

### 智能计算器

[App page](https://appshunter.io/ios/app/id6475540044)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $0.99 | per month |
| 周会员 | $0.99 | per 7 days |
| 季会员 | $2.99 | per 3 months |
| 永久会员 | $7.99 | one-time |


### Drafting Utility

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

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

**In-app purchases:** none


## Frequently asked questions

### Is 智能计算器 free?

智能计算器 is free to download, with in-app purchases available.

### Is Drafting Utility free?

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

### Do 智能计算器 or Drafting Utility have ads?

Drafting Utility shows ads; 智能计算器 does not.

### Which is updated more often, 智能计算器 or Drafting Utility?

智能计算器 ships an update every 5 days, and Drafting Utility daily. Most recently, 智能计算器 was updated on October 25, 2026 and Drafting Utility on October 25, 2026.

---

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