# Scent Expert vs AI~Diffuser

The clearest difference is update cadence: AI~Diffuser at every 3 months against Scent Expert's every 6 months. 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.

Scent Expert ships an update every 6 months, AI~Diffuser every 3 months. The most recent releases landed on June 24, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Scent Expert | AI~Diffuser |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Size | 182 MB | 58 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [静康 麦](https://appshunter.io/developer/1709029897) | [Guangzhou Lanmei Computer Technology Co., Ltd.](https://appshunter.io/developer/989104097) |

## What reviewers say

### Scent Expert

[App page](https://appshunter.io/ios/app/scent-expert/id6477283518)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI~Diffuser

[App page](https://appshunter.io/ios/app/aidiffuser/id6757913113)

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

**In-app purchases:** none


## Frequently asked questions

### Is Scent Expert free?

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

### Is AI~Diffuser free?

AI~Diffuser is free to download, with no in-app purchases.

### Do Scent Expert or AI~Diffuser have ads?

Neither Scent Expert nor AI~Diffuser shows ads.

### Which is updated more often, Scent Expert or AI~Diffuser?

Scent Expert ships an update every 6 months, and AI~Diffuser every 3 months. Most recently, Scent Expert was updated on June 24, 2026 and AI~Diffuser on September 19, 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.*