# 工程水印相机 vs 水印相机

The clearest difference is in-app purchases: 工程水印相机 at none against 水印相机's 3. 工程水印相机 also leads on iOS requirement (11.0 vs 15.0). 水印相机's advantage is ads (none vs shown) and update cadence (every 4 days vs every 4 months). On price and device support there is nothing between them.

Both are free to download. 水印相机 sells 3 in-app purchases, starting at $2.99 per 7 days. 工程水印相机 asks for nothing beyond the download.

工程水印相机 ships an update every 4 months, 水印相机 every 4 days. The most recent releases landed on September 8, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | 工程水印相机 | 水印相机 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 4 days** |
| Size | 51 MB | 71 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [长沙市金金网络科技有限公司](https://appshunter.io/developer/1506736457) | [先全 顾](https://appshunter.io/developer/1706065914) |

## What reviewers say

### 工程水印相机

[App page](https://appshunter.io/ios/app/id1610362817)

**Features:** macOS Compatibility

**In-app purchases:** none


### 水印相机

[App page](https://appshunter.io/ios/app/id6499102489)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $2.99 | per 7 days |
| 月订阅 | $3.99 | per month |
| 终生会员 | $7.99 | one-time |


## Frequently asked questions

### Is 工程水印相机 free?

工程水印相机 is free to download, with no in-app purchases.

### Is 水印相机 free?

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

### Do 工程水印相机 or 水印相机 have ads?

工程水印相机 shows ads; 水印相机 does not.

### Which is updated more often, 工程水印相机 or 水印相机?

工程水印相机 ships an update every 4 months, and 水印相机 every 4 days. Most recently, 工程水印相机 was updated on September 8, 2026 and 水印相机 on June 1, 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.*