# Smart Warmth vs Flying Chalk

The clearest difference is update cadence: Flying Chalk at monthly against Smart Warmth's every 4 months. Smart Warmth's advantage is iOS requirement (12.4 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.

Smart Warmth ships an update every 4 months, Flying Chalk monthly. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Smart Warmth | Flying Chalk |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Size | 35 MB | 5 MB |
| Requires iOS | **12.4** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Radiatori 2000 SpA](https://appshunter.io/developer/1210322288) | [Weiyanda (Shanghai) Information Technology Co., Ltd.](https://appshunter.io/developer/6773538640) |

## What reviewers say

### Smart Warmth

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Flying Chalk

[App page](https://appshunter.io/ios/app/flying-chalk/id6790717989)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Smart Warmth free?

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

### Is Flying Chalk free?

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

### Do Smart Warmth or Flying Chalk have ads?

Neither Smart Warmth nor Flying Chalk shows ads.

### Which is updated more often, Smart Warmth or Flying Chalk?

Smart Warmth ships an update every 4 months, and Flying Chalk monthly. Most recently, Smart Warmth was updated on October 3, 2026 and Flying Chalk on October 1, 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.*