# 鲁班尺 Pro vs 文匠AI

The clearest difference is price: 文匠AI at Free against 鲁班尺 Pro's $19.99. 鲁班尺 Pro's advantage is in-app purchases (none vs 4) and device support.

文匠AI is free to download; 鲁班尺 Pro costs $19.99 up front. 文匠AI sells 4 in-app purchases, starting at $1.99 per month. 鲁班尺 Pro asks for nothing beyond the download.

## The numbers

| Metric | 鲁班尺 Pro | 文匠AI |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 5 months | — |
| Monetization | Paid | — |
| Size | 105 MB | 68 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [桐明 陈](https://appshunter.io/developer/1197339496) | [Ruian Chengheng Digital Technology Co., Ltd.](https://appshunter.io/developer/1711217917) |

## What reviewers say

### 鲁班尺 Pro

[App page](https://appshunter.io/ios/app/pro/id1375474107)

This app transforms your phone into a professional measuring tool using AR. It helps test property layouts for buying, renting, or renovating, and provides auspicious meanings for measurements. Supports custom and standard ruler lengths, various units, and CAD file viewing.

**Highlights:** AR measurement with auspicious meanings, Customizable ruler lengths, Support for multiple measurement units, CAD file viewing (DWG compatibility), Area measurement (map, walking, driving), Real-time data saving

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

**In-app purchases:** none


### 文匠AI

[App page](https://appshunter.io/ios/app/ai/id6755222248)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $1.99 | per month |
| 连续包季 | $3.99 | per 3 months |
| 连续包年 | $12.99 | per year |
| 买2年送1年 | $19.99 | one-time |


## Frequently asked questions

### Is 鲁班尺 Pro free?

鲁班尺 Pro costs $19.99, with no in-app purchases.

### Is 文匠AI free?

文匠AI 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.*