# RED control vs Smart Temp Halo

The clearest difference is update cadence: Smart Temp Halo at every 5 weeks against RED control's every 4 months. RED control's advantage is iOS requirement (13.0 vs 16.0). 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.

RED control ships an update every 4 months, Smart Temp Halo every 5 weeks. The most recent releases landed on October 18, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | RED control | Smart Temp Halo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Size | 32 MB | 5 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CAREL INDUSTRIES S.p.A.](https://appshunter.io/developer/1797037609) | [Smart Temp Australia Pty.Ltd](https://appshunter.io/developer/1315471264) |

## What reviewers say

### RED control

[App page](https://appshunter.io/ios/app/red-control/id6471656241)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart Temp Halo

[App page](https://appshunter.io/ios/app/smart-temp-halo/id6744888490)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RED control free?

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

### Is Smart Temp Halo free?

Smart Temp Halo is free to download, with no in-app purchases.

### Do RED control or Smart Temp Halo have ads?

Neither RED control nor Smart Temp Halo shows ads.

### Which is updated more often, RED control or Smart Temp Halo?

RED control ships an update every 4 months, and Smart Temp Halo every 5 weeks. Most recently, RED control was updated on October 18, 2026 and Smart Temp Halo on October 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.*