# sx vs B

The clearest difference is update cadence: B at every 3 days against sx's monthly. B also leads on iOS requirement (13.0 vs 15.6). 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.

sx ships an update monthly, B every 3 days. The most recent releases landed on October 17, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | sx | B |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/sx-link/id1632843682/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free | — |
| Size | 26 MB | 31 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [瑜 孙](https://appshunter.io/developer/1598592522) | [IN&OUT Co.,Ltd.](https://appshunter.io/developer/6783921917) |

## What reviewers say

### sx

[App page](https://appshunter.io/ios/app/sx-link/id1632843682)

This network camera app allows you to connect and view live video streams from your devices over wired, WiFi, or 4G networks. You can capture, record, and share video, control PTZ functions, and manage alarms. It also offers smart home control features.

**Highlights:** Live video streaming (local & wide area), Video recording and sharing, PTZ control, Alarm management, Smart Home Control, Multi-grid video display

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

**In-app purchases:** none


### B

[App page](https://appshunter.io/ios/app/b-sync/id6783921705)

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

**In-app purchases:** none


## Frequently asked questions

### Is sx free?

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

### Is B free?

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

### Do sx or B have ads?

Neither sx nor B shows ads.

### Which is updated more often, sx or B?

sx ships an update monthly, and B every 3 days. Most recently, sx was updated on October 17, 2026 and B on October 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.*