# 四谐码计算器 vs 蜗牛视频

The clearest difference is price: 蜗牛视频 at Free against 四谐码计算器's $94.99. 蜗牛视频 also leads on in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

蜗牛视频 is free to download; 四谐码计算器 costs $94.99 up front. 四谐码计算器 sells 1 one-off in-app purchase. 蜗牛视频 asks for nothing beyond the download.

四谐码计算器 ships an update every 2 months, 蜗牛视频 every 5 weeks. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 四谐码计算器 | 蜗牛视频 |
| --- | --- | --- |
| Price | $94.99 | **Free** |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 7 MB | 217 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [长远 崔](https://appshunter.io/developer/502860495) | [Hunan CATV Network Group Co., LTD.](https://appshunter.io/developer/1303305135) |

## What reviewers say

### 四谐码计算器

[App page](https://appshunter.io/ios/app/id505775030)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 四谐码计算器专业版 | $46.99 | one-time |


### 蜗牛视频

[App page](https://appshunter.io/ios/app/id1524251164)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 四谐码计算器 free?

四谐码计算器 costs $94.99, and also offers in-app purchases.

### Is 蜗牛视频 free?

蜗牛视频 is free to download, with no in-app purchases.

### Do 四谐码计算器 or 蜗牛视频 have ads?

Neither 四谐码计算器 nor 蜗牛视频 shows ads.

### Which is updated more often, 四谐码计算器 or 蜗牛视频?

四谐码计算器 ships an update every 2 months, and 蜗牛视频 every 5 weeks. Most recently, 四谐码计算器 was updated on October 8, 2026 and 蜗牛视频 on October 12, 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.*