# Scent Tech vs AF Aroma

The clearest difference is update cadence: Scent Tech at every 6 weeks against AF Aroma's every 9 months. Scent Tech also leads on review sentiment (14% vs 0%) and ratings volume (63 vs 6). AF Aroma's advantage is iOS requirement (11.0 vs 15.0). On price, rating, 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.

On the App Store both sit at effectively the same score — 2.2 for Scent Tech against 2.3 for AF Aroma. That said, the two scores are not equally well evidenced: Scent Tech has 63 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 14% of Scent Tech's written reviews are positive against 0% of AF Aroma's.

Scent Tech ships an update every 6 weeks, AF Aroma every 9 months. The most recent releases landed on September 17, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Scent Tech | AF Aroma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (63 ratings)](https://appshunter.io/ios/app/scent-tech/id1662466433/reviews) | **[2.3 (6 ratings)](https://appshunter.io/ios/app/af-aroma/id6448817246/reviews)** |
| Number of ratings | **63** | 6 |
| Positive reviews | **13.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 9 months |
| Monetization | Free | Free |
| Size | 47 MB | 17 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [俊 谢](https://appshunter.io/developer/1440271932) | [Zhuhai Rongyuan Electronic Technology Co.,ltd](https://appshunter.io/developer/1686521915) |

## What reviewers say

### Scent Tech

[App page](https://appshunter.io/ios/app/scent-tech/id1662466433)

Control your scent machine remotely with this app. It offers automatic mode selection for various scenarios and allows for batch management of devices through customizable groups.

**Highlights:** Scent machine control, Automatic mode selection, Device grouping, Batch management, Customizable group names

**In-app purchases:** none


### AF Aroma

[App page](https://appshunter.io/ios/app/af-aroma/id6448817246)

Control your aroma diffuser's fan speed, power, and settings via Bluetooth. Customize modes and manage device details like name and password for a personalized scent experience.

**Highlights:** BLE fan control, Adjust fan speed, Lock/unlock device, Switch on/off, Modify device name, Set device password, Customizable modes

**In-app purchases:** none


## Frequently asked questions

### Is Scent Tech free?

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

### Is AF Aroma free?

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

### Which has better reviews, Scent Tech or AF Aroma?

AF Aroma is rated higher. Scent Tech averages 2.2 out of 5 from 63 ratings, while AF Aroma averages 2.3 from 6 ratings.

### Do Scent Tech or AF Aroma have ads?

Neither Scent Tech nor AF Aroma shows ads.

### Which is updated more often, Scent Tech or AF Aroma?

Scent Tech ships an update every 6 weeks, and AF Aroma every 9 months. Most recently, Scent Tech was updated on September 17, 2026 and AF Aroma on September 16, 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.*