# Smart Warmth vs HEAT OneLayer

Smart Warmth and HEAT OneLayer are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Smart Warmth | HEAT OneLayer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 35 MB | 132 MB |
| Requires iOS | 12.4 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Radiatori 2000 SpA](https://appshunter.io/developer/1210322288) | [Mobile Associates, LLC](https://appshunter.io/developer/959592099) |

## What reviewers say

### Smart Warmth

[App page](https://appshunter.io/ios/app/smart-warmth/id6466155901)

**Features:** macOS Compatibility

**In-app purchases:** none


### HEAT OneLayer

[App page](https://appshunter.io/ios/app/heat-onelayer/id6479862561)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart Warmth free?

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

### Is HEAT OneLayer free?

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

### Do Smart Warmth or HEAT OneLayer have ads?

Neither Smart Warmth nor HEAT OneLayer shows ads.

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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.*