# SM Signal vs Light Control

The clearest difference is update cadence: Light Control at every 3 weeks against SM Signal's every 11 months. SM Signal's advantage is iOS requirement (8.0 vs 12.0). 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.

SM Signal ships an update every 11 months, Light Control every 3 weeks. The most recent releases landed on September 9, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | SM Signal | Light Control |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Size | 5 MB | 28 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Foshan Sanmak Lighting](https://appshunter.io/developer/1276059187) | [绚丽 钟](https://appshunter.io/developer/1500682690) |

## What reviewers say

### SM Signal

[App page](https://appshunter.io/ios/app/sm-signal/id1260416403)

**Features:** macOS Compatibility

**In-app purchases:** none


### Light Control

[App page](https://appshunter.io/ios/app/light-control/id6463695235)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SM Signal free?

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

### Is Light Control free?

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

### Do SM Signal or Light Control have ads?

Neither SM Signal nor Light Control shows ads.

### Which is updated more often, SM Signal or Light Control?

SM Signal ships an update every 11 months, and Light Control every 3 weeks. Most recently, SM Signal was updated on September 9, 2026 and Light Control on September 17, 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.*