# Smart Diffuser vs AFT Aroma

The clearest difference is rating: Smart Diffuser at 2.7 against AFT Aroma's 1.3. Smart Diffuser also leads on review sentiment (25% vs 8%). AFT Aroma's advantage is update cadence (every 10 days vs every 6 weeks) and ratings volume (73 vs 6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Smart Diffuser holds the better App Store score, 2.7 against 1.3. That said, the two scores are not equally well evidenced: AFT Aroma has 73 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 25% of Smart Diffuser's written reviews are positive against 8% of AFT Aroma's.

Smart Diffuser ships an update every 6 weeks, AFT Aroma every 10 days. The most recent releases landed on July 7, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Smart Diffuser | AFT Aroma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (6 ratings)](https://appshunter.io/ios/app/smart-diffuser/id1436466932/reviews)** | [1.3 (73 ratings)](https://appshunter.io/ios/app/aft-aroma/id6472570538/reviews) |
| Number of ratings | 6 | **73** |
| Positive reviews | **25.0% of reviews** | 8.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 10 days** |
| Monetization | Free | Free |
| Size | 42 MB | 24 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [秦庚 蒋](https://appshunter.io/developer/1436462643) | [ShenZhen Lenze Technology Co,.Ltd.](https://appshunter.io/developer/1190864538) |

## 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


### AFT Aroma

[App page](https://appshunter.io/ios/app/aft-aroma/id6472570538)

This app enhances your living space with pleasant fragrances. It offers simple, user-friendly controls and comprehensive features to personalize your environment when used with its hardware device.

**Highlights:** Easy to use interface, Comprehensive features, Personalize your living space, Enhances with fragrance, Works with hardware device

**In-app purchases:** none

**What reviewers like**

- ✅ Works perfectly when properly set up
- 🔗 Quick Bluetooth connection
- 👍 Easy to use interface
- 💡 Functional machine hardware

**What reviewers complain about**

- 🐛 App crashes on launch
- 📱 iPhone/iOS compatibility issues
- 🔌 Connection failures to device
- ❌ App won't open or closes immediately
- 🎨 Poor UI design and readability

**Reported bugs**

- App crashes immediately upon opening
- App won't launch on iPhone
- Device fails to connect via Bluetooth
- App closes when selecting device
- Pairing code not provided or incorrect

**Requested features**

- Improve app stability and crash prevention
- Better iOS compatibility
- Clear documentation of default passwords
- Enhanced UI design and readability
- More comprehensive control options


## Frequently asked questions

### Is Smart Diffuser free?

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

### Is AFT Aroma free?

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

### Which has better reviews, Smart Diffuser or AFT Aroma?

Smart Diffuser is rated higher. Smart Diffuser averages 2.7 out of 5 from 6 ratings, while AFT Aroma averages 1.3 from 73 ratings.

### Do Smart Diffuser or AFT Aroma have ads?

Neither Smart Diffuser nor AFT Aroma shows ads.

### Which is updated more often, Smart Diffuser or AFT Aroma?

Smart Diffuser ships an update every 6 weeks, and AFT Aroma every 10 days. Most recently, Smart Diffuser was updated on July 7, 2026 and AFT Aroma on September 26, 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.*