# Smart Scent Pro vs Smart Scent Air

The clearest difference is iOS requirement: Smart Scent Air at 12.0 against Smart Scent Pro's 15.0. 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 25, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Smart Scent Pro | Smart Scent Air |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 20 MB | 37 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [永锦 罗](https://appshunter.io/developer/1444842458) | [易客创新(泉州)智能科技有限公司](https://appshunter.io/developer/1683294855) |

## What reviewers say

### Smart Scent Pro

[App page](https://appshunter.io/ios/app/smart-scent-pro/id1558962248)

**In-app purchases:** none


### Smart Scent Air

[App page](https://appshunter.io/ios/app/smart-scent-air/id1668710074)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart Scent Pro free?

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

### Is Smart Scent Air free?

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

### Do Smart Scent Pro or Smart Scent Air have ads?

Neither Smart Scent Pro nor Smart Scent Air shows ads.

### Which is updated more often, Smart Scent Pro or Smart Scent Air?

Smart Scent Pro ships an update every 2 months, and Smart Scent Air every 2 months. Most recently, Smart Scent Pro was updated on October 25, 2026 and Smart Scent Air on November 3, 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.*