# 时间相机 vs 水印相机

The clearest difference is in-app purchases: 水印相机 at none against 时间相机's 3. 水印相机 also leads on device support (3 vs 1). 时间相机's advantage is review sentiment (100% vs 67%). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. 时间相机 sells 3 in-app purchases, starting at $3.99 per 7 days. 水印相机 asks for nothing beyond the download.

时间相机 ships an update monthly, 水印相机 fortnightly. The most recent releases landed on October 21, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 时间相机 | 水印相机 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 30 MB | 50 MB |
| Requires iOS | 16.0 | 16 |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [晓林 王](https://appshunter.io/developer/1643293359) | [有海 蔡](https://appshunter.io/developer/1813786595) |

## What reviewers say

### 时间相机

[App page](https://appshunter.io/ios/app/id6480400344)

This app allows users to add custom watermarks to photos, including time, weather, and location details. It offers various templates for work, travel, and daily use, along with an AI assistant for report generation and a toolbox for engineering calculations.

**Highlights:** Customizable photo watermarks, Time, weather, and location stamps, Industry-specific templates, AI-powered report generation, Engineering toolbox, One-click sharing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 打卡相机周订阅 | $3.99 | per 7 days |
| 打卡相机月订阅 | $6.99 | per month |
| 打卡相机年订阅 | $14.99 | per year |


### 水印相机

[App page](https://appshunter.io/ios/app/id6745852889)

This app automatically adds time and location watermarks to photos and videos. It offers a wide variety of professional templates for different scenarios, including work, exams, and inspections. Users can also customize their own watermarks with text and images.

**Highlights:** Automatic time and location watermarks, Professional watermark templates, Customizable watermark content, Add text and images to watermarks, Supports photos and videos, Multiple industry templates

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

**In-app purchases:** none


## Frequently asked questions

### Is 时间相机 free?

时间相机 is free to download, with in-app purchases available.

### Is 水印相机 free?

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

### Do 时间相机 or 水印相机 have ads?

Neither 时间相机 nor 水印相机 shows ads.

### Which is updated more often, 时间相机 or 水印相机?

时间相机 ships an update monthly, and 水印相机 fortnightly. Most recently, 时间相机 was updated on October 21, 2026 and 水印相机 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.*