# 3D箱规计算器 vs 理词本

The clearest difference is price: 理词本 at Free against 3D箱规计算器's $0.99. 3D箱规计算器's advantage is iOS requirement (15.6 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

理词本 is free to download; 3D箱规计算器 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 3D箱规计算器 | 理词本 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Daily |
| Size | 1 MB | 19 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Hui Wang](https://appshunter.io/developer/1255739197) | [鹏飞 高](https://appshunter.io/developer/1747456623) |

## What reviewers say

### 3D箱规计算器

[App page](https://appshunter.io/ios/app/3d/id6739236108)

**Features:** macOS Compatibility

**In-app purchases:** none


### 理词本

[App page](https://appshunter.io/ios/app/id6761205445)

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

**In-app purchases:** none


## Frequently asked questions

### Is 3D箱规计算器 free?

3D箱规计算器 costs $0.99, with no in-app purchases.

### Is 理词本 free?

理词本 is free to download, with no in-app purchases.

### Do 3D箱规计算器 or 理词本 have ads?

Neither 3D箱规计算器 nor 理词本 shows ads.

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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.*