# Smart Diffuser vs Scent Wifi Plus

The clearest difference is rating: Scent Wifi Plus at 4.0 against Smart Diffuser's 2.7. Scent Wifi Plus also leads on iOS requirement (9.0 vs 12.0). On price, ratings volume, update cadence and ads there is nothing between them.

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

Scent Wifi Plus holds the better App Store score, 4.0 against 2.7. Both are backed by a comparable volume of ratings — 6 and 8 respectively.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 2, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Smart Diffuser | Scent Wifi Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (6 ratings)](https://appshunter.io/ios/app/smart-diffuser/id1436466932/reviews) | **[4.0 (8 ratings)](https://appshunter.io/ios/app/scent-wifi-plus/id1582403878/reviews)** |
| Number of ratings | 6 | **8** |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Free | Free |
| Size | 42 MB | 68 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [秦庚 蒋](https://appshunter.io/developer/1436462643) | [Guangzhou Chi Yang Electrical machinery co., LTD](https://appshunter.io/developer/1450772687) |

## What reviewers say

### Smart Diffuser

[App page](https://appshunter.io/ios/app/smart-diffuser/id1436466932)

Control your smart scent machine remotely via Wi-Fi. Adjust scent intensity, monitor oil levels, and manage multiple devices. Authorize other users and group machines for business use.

**Highlights:** Remote Wi-Fi control, Scent intensity adjustment, Oil level monitoring, User authorization, Device grouping, Employee account management

**In-app purchases:** none


### Scent Wifi Plus

[App page](https://appshunter.io/ios/app/scent-wifi-plus/id1582403878)

Control your home or business's scent diffusion remotely via Bluetooth or Wi-Fi. Adjust scent intensity, set working times, and monitor essential oil levels with a few taps on your phone.

**Highlights:** Remote on/off control, Scent grade adjustment, Working time scheduling, Essential oil level monitoring, Device renaming, Version information

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Diffuser free?

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

### Is Scent Wifi Plus free?

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

### Which has better reviews, Smart Diffuser or Scent Wifi Plus?

Scent Wifi Plus is rated higher. Smart Diffuser averages 2.7 out of 5 from 6 ratings, while Scent Wifi Plus averages 4.0 from 8 ratings.

### Do Smart Diffuser or Scent Wifi Plus have ads?

Neither Smart Diffuser nor Scent Wifi Plus shows ads.

### Which is updated more often, Smart Diffuser or Scent Wifi Plus?

Smart Diffuser ships an update every 6 weeks, and Scent Wifi Plus every 6 weeks. Most recently, Smart Diffuser was updated on October 2, 2026 and Scent Wifi Plus on October 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.*