# sx vs AR BPA

The clearest difference is price: sx at Free against AR BPA's $17.99. sx also leads on update cadence (every 6 weeks vs every 14 months) and iOS requirement (9.3 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

sx is free to download; AR BPA costs $17.99 up front. Neither carries in-app purchases, so what you see is what you pay.

sx ships an update every 6 weeks, AR BPA every 14 months. The most recent releases landed on September 13, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | sx | AR BPA |
| --- | --- | --- |
| Price | **Free** | $17.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sx-link/id1632843682/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 14 months |
| Monetization | Free | — |
| Size | 36 MB | 7 MB |
| Requires iOS | **9.3** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [瑜 孙](https://appshunter.io/developer/1598592522) | [Erebo Stirpe](https://appshunter.io/developer/941847218) |

## 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


### AR BPA

[App page](https://appshunter.io/ios/app/ar-bpa/id6740144940)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is sx free?

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

### Is AR BPA free?

AR BPA costs $17.99, with no in-app purchases.

### Do sx or AR BPA have ads?

Neither sx nor AR BPA shows ads.

### Which is updated more often, sx or AR BPA?

sx ships an update every 6 weeks, and AR BPA every 14 months. Most recently, sx was updated on September 13, 2026 and AR BPA on September 9, 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.*