# AI消防 vs Watermark Camera

The clearest difference is in-app purchases: AI消防 at none against Watermark Camera's 1. AI消防 also leads on iOS requirement (12.0 vs 18.1). Watermark Camera's advantage is update cadence (every 10 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Watermark Camera sells 1 one-off in-app purchase. AI消防 asks for nothing beyond the download.

AI消防 ships an update monthly, Watermark Camera every 10 days. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | AI消防 | Watermark Camera |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Size | 147 MB | 19 MB |
| Requires iOS | **12.0** | 18.1 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Zhejiang Menhey Technology Co.,Ltd.](https://appshunter.io/developer/1031406646) | [荣 黄](https://appshunter.io/developer/1752611436) |

## What reviewers say

### AI消防

[App page](https://appshunter.io/ios/app/ai/id1287007752)

**In-app purchases:** none


### Watermark Camera

[App page](https://appshunter.io/ios/app/watermark-camera-jianyin/id6758261821)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Membership | $2.99 | one-time |


## Frequently asked questions

### Is AI消防 free?

AI消防 is free to download, with no in-app purchases.

### Is Watermark Camera free?

Watermark Camera is free to download, with in-app purchases available.

### Do AI消防 or Watermark Camera have ads?

Neither AI消防 nor Watermark Camera shows ads.

### Which is updated more often, AI消防 or Watermark Camera?

AI消防 ships an update monthly, and Watermark Camera every 10 days. Most recently, AI消防 was updated on October 26, 2026 and Watermark Camera on October 30, 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.*