# 大神水印 vs 格式转换

The clearest difference is ratings volume: 大神水印 at 245 against 格式转换's 6. 大神水印 also leads on update cadence (every 5 days vs fortnightly). 格式转换's advantage is iOS requirement (12.1 vs 15.1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. 大神水印 sells 8 in-app purchases, starting at $2.49 per 7 days and 格式转换 sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

格式转换 holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: 大神水印 has 245 ratings behind it against 6, so its average is the more settled of the two.

大神水印 ships an update every 5 days, 格式转换 fortnightly. Both last shipped on November 3, 2026.

## The numbers

| Metric | 大神水印 | 格式转换 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (245 ratings)](https://appshunter.io/ios/app/id1564639388/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/id6448865905/reviews)** |
| Number of ratings | **245** | 6 |
| Positive reviews | 94.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Free with in-app purchases | Freemium |
| Size | 61 MB | 57 MB |
| Requires iOS | 15.1 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [伟 黄](https://appshunter.io/developer/1561285163) | [Light Speed Intelligence Technology Co., Ltd.](https://appshunter.io/developer/1670291399) |

## What reviewers say

### 大神水印

[App page](https://appshunter.io/ios/app/id1564639388)

This app allows users to add custom text and image watermarks to both videos and photos. It also offers a suite of video editing tools, including trimming, speed adjustment, GIF conversion, and audio extraction.

**Highlights:** Add text and image watermarks, Video trimming and duration adjustment, Video speed control, Convert video to GIF, Extract audio from video, Video compression

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $2.49 | per 7 days |
| 月会员 | $4.49 | per month |
| 年会员 | $17.99 | per year |
| 单月会员 | $3.99 | one-time |
| 季度会员 | $8.99 | one-time |
| 年度会员 | $15.99 | one-time |
| 永久会员 | $39.99 | one-time |
| 永久会员 | $41.99 | one-time |

**What reviewers like**

- 🚀 Fast download speeds
- 👍 Easy to use
- 🔥 Excellent video quality
- 💯 Reliable and consistent
- 🎉 Useful features like watermark removal

**What reviewers complain about**

- 💰 Paid subscription required for full functionality
- 🔒 Limited free usage
- 🐛 Occasional crashes or glitches

**Reported bugs**

- Inconsistent video extraction on certain platforms
- Occasional freezing during downloads

**Requested features**

- More free usage options
- Expanded platform support
- Improved user interface


### 格式转换

[App page](https://appshunter.io/ios/app/id6448865905)

Easily convert video files to various formats like MP4 and MKV, or extract audio into MP3, FLAC, and AAC. This tool simplifies audio and video format transformations with a user-friendly interface.

**Highlights:** Video to MP4, MKV, MOV, TS conversion, Audio to MP3, FLAC, AAC, WAV conversion, Extract audio from video, One-click conversion, Subscription for premium features

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $3.99 | per month |
| 年会员 | $14.99 | per year |
| 永久会员 | $19.99 | one-time |


## Frequently asked questions

### Is 大神水印 free?

大神水印 is free to download, with in-app purchases available.

### Is 格式转换 free?

格式转换 is free to download, with in-app purchases available.

### Which has better reviews, 大神水印 or 格式转换?

格式转换 is rated higher. 大神水印 averages 4.8 out of 5 from 245 ratings, while 格式转换 averages 5.0 from 6 ratings.

### Do 大神水印 or 格式转换 have ads?

Neither 大神水印 nor 格式转换 shows ads.

### Which is updated more often, 大神水印 or 格式转换?

大神水印 ships an update every 5 days, and 格式转换 fortnightly. Most recently, 大神水印 was updated on November 3, 2026 and 格式转换 on November 3, 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.*