# BT Shutter Kun vs 武影子

The clearest difference is update cadence: 武影子 at every 4 days against BT Shutter Kun's every 6 months. BT Shutter Kun's advantage is iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BT Shutter Kun ships an update every 6 months, 武影子 every 4 days. Both last shipped on October 4, 2026.

## The numbers

| Metric | BT Shutter Kun | 武影子 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/bt-shutter-kun/id1477004454/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 5.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 26 MB | 73 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Kaichengyi Technology Co.,Ltd.](https://appshunter.io/developer/1514551405) | [容圆科技](https://appshunter.io/developer/1563355159) |

## What reviewers say

### BT Shutter Kun

[App page](https://appshunter.io/ios/app/bt-shutter-kun/id1477004454)

This app connects via Bluetooth to a specific underwater camera housing, allowing users to control photo and video recording while diving. It's designed for underwater enthusiasts to capture their aquatic experiences.

**Highlights:** Bluetooth connectivity, Underwater photo capture, Underwater video recording, Control camera functions, Record aquatic experiences

**In-app purchases:** none


### 武影子

[App page](https://appshunter.io/ios/app/id6804913596)

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

**In-app purchases:** none


## Frequently asked questions

### Is BT Shutter Kun free?

BT Shutter Kun is free to download, with no in-app purchases.

### Is 武影子 free?

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

### Do BT Shutter Kun or 武影子 have ads?

Neither BT Shutter Kun nor 武影子 shows ads.

### Which is updated more often, BT Shutter Kun or 武影子?

BT Shutter Kun ships an update every 6 months, and 武影子 every 4 days. Most recently, BT Shutter Kun was updated on October 4, 2026 and 武影子 on October 4, 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.*