# S4C vs Airlinkiot

The clearest difference is update cadence: Airlinkiot at fortnightly against S4C's monthly. 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.

S4C ships an update monthly, Airlinkiot fortnightly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | S4C | Airlinkiot |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 35 MB | 37 MB |
| Requires iOS | **12** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SUTO iTEC (China) Co. Ltd](https://appshunter.io/developer/1511502112) | [泉州市华德机电设备有限公司](https://appshunter.io/developer/1181884806) |

## What reviewers say

### S4C

[App page](https://appshunter.io/ios/app/s4c-fs/id1619076144)

**Features:** macOS Compatibility

**In-app purchases:** none


### Airlinkiot

[App page](https://appshunter.io/ios/app/airlinkiot/id6473401207)

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

**In-app purchases:** none


## Frequently asked questions

### Is S4C free?

S4C is free to download, with no in-app purchases.

### Is Airlinkiot free?

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

### Do S4C or Airlinkiot have ads?

Neither S4C nor Airlinkiot shows ads.

### Which is updated more often, S4C or Airlinkiot?

S4C ships an update monthly, and Airlinkiot fortnightly. Most recently, S4C was updated on November 3, 2026 and Airlinkiot on November 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.*