# 日历清理工具 vs 水印相机

The clearest difference is in-app purchases: 日历清理工具 at none against 水印相机's 1. 日历清理工具 also leads on update cadence (every 2 days vs every 6 days). On price, ads, 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. 日历清理工具 asks for nothing beyond the download.

日历清理工具 ships an update every 2 days, 水印相机 every 6 days. The most recent releases landed on September 20, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 日历清理工具 | 水印相机 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (13 ratings)](https://appshunter.io/ios/app/and/id1180959821/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 95.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Every 6 days |
| Monetization | Ad-supported | — |
| Size | 32 MB | 75 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Miduo Future Technology Co., Ltd.](https://appshunter.io/developer/1060419459) | [成都仓墨科技有限公司](https://appshunter.io/developer/1668641241) |

## What reviewers say

### 日历清理工具

[App page](https://appshunter.io/ios/app/and/id1180959821)

This utility helps remove unwanted calendar invitations and advertisements. It allows users to set date ranges for cleanup, add custom keywords, and mark ads for deletion. Changes sync automatically with iCloud.

**Highlights:** Date range selection for cleanup, Customizable keyword filtering, Mark and delete ad events, One-click calendar cleanup, Automatic iCloud synchronization

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 日历清理工具 free?

日历清理工具 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 日历清理工具 or 水印相机 have ads?

Both 日历清理工具 and 水印相机 show ads.

### Which is updated more often, 日历清理工具 or 水印相机?

日历清理工具 ships an update every 2 days, and 水印相机 every 6 days. Most recently, 日历清理工具 was updated on September 20, 2026 and 水印相机 on September 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.*