# XTGateway vs Four

The clearest difference is update cadence: XTGateway at every 3 weeks against Four's every 2 months. Four's advantage is iOS requirement (12.0 vs 18.6). 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.

XTGateway ships an update every 3 weeks, Four every 2 months. The most recent releases landed on October 16, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | XTGateway | Four |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 22 MB | 58 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen Lanke Xuntong Technology Co., Ltd.](https://appshunter.io/developer/640898259) | [Xiamen Sixin IoT Technology Co., Ltd.](https://appshunter.io/developer/1438611291) |

## What reviewers say

### XTGateway

[App page](https://appshunter.io/ios/app/xtgateway/id1244340401)

**In-app purchases:** none


### Four

[App page](https://appshunter.io/ios/app/four-faith-sensor-cloud/id6451084198)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is XTGateway free?

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

### Is Four free?

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

### Do XTGateway or Four have ads?

Neither XTGateway nor Four shows ads.

### Which is updated more often, XTGateway or Four?

XTGateway ships an update every 3 weeks, and Four every 2 months. Most recently, XTGateway was updated on October 16, 2026 and Four on September 28, 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.*