# Smart Warmth vs Uby

The clearest difference is iOS requirement: Smart Warmth at 12.4 against Uby's 15.6. 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.

Smart Warmth ships an update every 4 months, Uby every 7 months. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Smart Warmth | Uby |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Size | 35 MB | 30 MB |
| Requires iOS | **12.4** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Radiatori 2000 SpA](https://appshunter.io/developer/1210322288) | [MOREL David](https://appshunter.io/developer/1590554805) |

## What reviewers say

### Smart Warmth

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Uby

[App page](https://appshunter.io/ios/app/uby-soil/id6737808872)

**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 Uby free?

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

### Do Smart Warmth or Uby have ads?

Neither Smart Warmth nor Uby shows ads.

### Which is updated more often, Smart Warmth or Uby?

Smart Warmth ships an update every 4 months, and Uby every 7 months. Most recently, Smart Warmth was updated on October 19, 2026 and Uby on October 12, 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.*