# 鲁班尺 Pro vs 水印相机打卡

The clearest difference is price: 水印相机打卡 at Free against 鲁班尺 Pro's $19.99. 水印相机打卡 also leads on update cadence (monthly vs every 5 months). 鲁班尺 Pro's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

水印相机打卡 is free to download; 鲁班尺 Pro costs $19.99 up front. 水印相机打卡 sells 3 in-app purchases, starting at $0.99 per 7 days. 鲁班尺 Pro asks for nothing beyond the download.

鲁班尺 Pro ships an update every 5 months, 水印相机打卡 monthly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 鲁班尺 Pro | 水印相机打卡 |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/id6740899869/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 105 MB | 107 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [桐明 陈](https://appshunter.io/developer/1197339496) | [Silver Tech](https://appshunter.io/developer/1547560319) |

## 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


### 水印相机打卡

[App page](https://appshunter.io/ios/app/id6740899869)

Effortlessly capture attendance with real-time photo check-ins, precisely recording time, location, and date. Customize watermarks and easily create collages for reports. Batch process photos for enhanced efficiency.

**Highlights:** Real-time photo check-ins, Customizable date, time, and location watermarks, Multiple watermark templates, Quick photo collage creation, Batch photo watermarking, Batch photo annotation tools

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 水印相机PRO - 按周订阅 | $0.99 | per 7 days |
| 水印相机PRO - 按月订阅 | $1.99 | per month |
| 水印相机PRO - 按年订阅 | $12.99 | per year |


## Frequently asked questions

### Is 鲁班尺 Pro free?

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

### Is 水印相机打卡 free?

水印相机打卡 is free to download, with in-app purchases available.

### Do 鲁班尺 Pro or 水印相机打卡 have ads?

水印相机打卡 shows ads; 鲁班尺 Pro does not.

### Which is updated more often, 鲁班尺 Pro or 水印相机打卡?

鲁班尺 Pro ships an update every 5 months, and 水印相机打卡 monthly. Most recently, 鲁班尺 Pro was updated on October 26, 2026 and 水印相机打卡 on October 24, 2026.

---

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