# 蜀兜 vs Caption AI

The clearest difference is in-app purchases: 蜀兜 at none against Caption AI's 4. 蜀兜 also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Caption AI sells 4 in-app purchases, starting at $2.99 per 7 days. 蜀兜 asks for nothing beyond the download.

蜀兜 ships an update every 2 weeks, Caption AI monthly. The most recent releases landed on October 21, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 蜀兜 | Caption AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 87 MB | 48 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Chengdu Zhijie Technology Co., Ltd.](https://appshunter.io/developer/1665485682) | [Beijing Xingnian Trading Department (Individually Owned Business)](https://appshunter.io/developer/1556019310) |

## What reviewers say

### 蜀兜

[App page](https://appshunter.io/ios/app/id1665803780)

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

**In-app purchases:** none


### Caption AI

[App page](https://appshunter.io/ios/app/caption-ai-subtitle-maker/id6760328167)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly | $3.99 | per month |
| Annual | $14.99 | per year |
| Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is 蜀兜 free?

蜀兜 is free to download, with no in-app purchases.

### Is Caption AI free?

Caption AI is free to download, with in-app purchases available.

### Do 蜀兜 or Caption AI have ads?

Neither 蜀兜 nor Caption AI shows ads.

### Which is updated more often, 蜀兜 or Caption AI?

蜀兜 ships an update every 2 weeks, and Caption AI monthly. Most recently, 蜀兜 was updated on October 21, 2026 and Caption AI 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.*