# Hybri'density vs Smart Warmth

The clearest difference is iOS requirement: Smart Warmth at 12.4 against Hybri'density's 15.4. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Hybri'density ships an update every 3 months, Smart Warmth every 4 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Hybri'density | Smart Warmth |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Size | 4 MB | 35 MB |
| Requires iOS | 15.4 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAATEN-UNION GmbH](https://appshunter.io/developer/915642622) | [Radiatori 2000 SpA](https://appshunter.io/developer/1210322288) |

## What reviewers say

### Hybri'density

[App page](https://appshunter.io/ios/app/hybridensity/id907392216)

**In-app purchases:** none


### Smart Warmth

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hybri'density free?

Hybri'density is free to download, with no in-app purchases.

### Is Smart Warmth free?

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

### Do Hybri'density or Smart Warmth have ads?

Neither Hybri'density nor Smart Warmth shows ads.

### Which is updated more often, Hybri'density or Smart Warmth?

Hybri'density ships an update every 3 months, and Smart Warmth every 4 months. Most recently, Hybri'density was updated on November 1, 2026 and Smart Warmth on October 30, 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.*