# Smart Diffuser vs Aroma Master

The clearest difference is iOS requirement: Smart Diffuser at 12.0 against Aroma Master's 15.1. 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.

Smart Diffuser ships an update every 6 weeks, Aroma Master every 2 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Smart Diffuser | Aroma Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (8 ratings)](https://appshunter.io/ios/app/smart-diffuser/id1436466932/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 42 MB | 21 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [秦庚 蒋](https://appshunter.io/developer/1436462643) | [Zhongshan Yidian Electronics Co., Ltd.](https://appshunter.io/developer/1759008937) |

## 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


### Aroma Master

[App page](https://appshunter.io/ios/app/aroma-master/id6740137291)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart Diffuser free?

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

### Is Aroma Master free?

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

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

Neither Smart Diffuser nor Aroma Master shows ads.

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

Smart Diffuser ships an update every 6 weeks, and Aroma Master every 2 months. Most recently, Smart Diffuser was updated on October 29, 2026 and Aroma Master on October 30, 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.*