# 水印相机 vs 时光日记本

The clearest difference is in-app purchases: 时光日记本 at none against 水印相机's 1. 时光日记本 also leads on ads (none vs shown). 水印相机's advantage is update cadence (every 6 days vs every 5 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 水印相机 sells 1 one-off in-app purchase. 时光日记本 asks for nothing beyond the download.

水印相机 ships an update every 6 days, 时光日记本 every 5 weeks. The most recent releases landed on September 29, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 水印相机 | 时光日记本 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 5 weeks |
| Size | 75 MB | 24 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [成都仓墨科技有限公司](https://appshunter.io/developer/1668641241) | [文坚 谢](https://appshunter.io/developer/1486710501) |

## What reviewers say

### 水印相机

[App page](https://appshunter.io/ios/app/id6479632553)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 水印相机永久会员 | $9.99 | one-time |


### 时光日记本

[App page](https://appshunter.io/ios/app/id6737968094)

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

**In-app purchases:** none


## Frequently asked questions

### Is 水印相机 free?

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

### Is 时光日记本 free?

时光日记本 is free to download, with no in-app purchases.

### Do 水印相机 or 时光日记本 have ads?

水印相机 shows ads; 时光日记本 does not.

### Which is updated more often, 水印相机 or 时光日记本?

水印相机 ships an update every 6 days, and 时光日记本 every 5 weeks. Most recently, 水印相机 was updated on September 29, 2026 and 时光日记本 on October 10, 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.*