# BT Shutter Kun vs SMSCatch

The clearest difference is in-app purchases: BT Shutter Kun at none against SMSCatch's 6. BT Shutter Kun also leads on iOS requirement (12.0 vs 15.0). SMSCatch's advantage is update cadence (every 3 days vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. SMSCatch sells 6 one-off in-app purchases. BT Shutter Kun asks for nothing beyond the download.

BT Shutter Kun ships an update every 6 months, SMSCatch every 3 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BT Shutter Kun | SMSCatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/bt-shutter-kun/id1477004454/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 5.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 26 MB | 34 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Kaichengyi Technology Co.,Ltd.](https://appshunter.io/developer/1514551405) | [Hunan Wendao Information Technology Co., Ltd.](https://appshunter.io/developer/1526988551) |

## 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


### SMSCatch

[App page](https://appshunter.io/ios/app/smscatch-receive-sms/id6812112522)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Credit | $1.00 | one-time |
| 3 Credits | $3.00 | one-time |
| 5 Credits | $5.00 | one-time |
| 10 Credits | $10.00 | one-time |
| 20 Credits | $20.00 | one-time |
| 50 Credits | $50.00 | one-time |


## Frequently asked questions

### Is BT Shutter Kun free?

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

### Is SMSCatch free?

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

### Do BT Shutter Kun or SMSCatch have ads?

Neither BT Shutter Kun nor SMSCatch shows ads.

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

BT Shutter Kun ships an update every 6 months, and SMSCatch every 3 days. Most recently, BT Shutter Kun was updated on October 21, 2026 and SMSCatch on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*