# BT vs Scent diffuse

The clearest difference is rating: Scent diffuse at 5.0 against BT's 1.6. BT's advantage is ratings volume (8 vs 1) and iOS requirement (9.0 vs 15.0). 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.

Scent diffuse holds the better App Store score, 5.0 against 1.6. That said, the two scores are not equally well evidenced: BT has 8 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on June 11, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | BT | Scent diffuse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (8 ratings)](https://appshunter.io/ios/app/bt-aroma/id1601150083/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/scent-diffuse/id6469298101/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 3 MB | 22 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [俊 谢](https://appshunter.io/developer/1440271932) | [春荣 杨](https://appshunter.io/developer/1677484703) |

## What reviewers say

### BT

[App page](https://appshunter.io/ios/app/bt-aroma/id1601150083)

This utility app allows users to customize working periods for a machine. It supports setting different working days and times for various requests and locations, offering flexibility in machine operation.

**Highlights:** Customizable working modes, Set 5 groups of working periods, Define different working days, Schedule specific working times, Adaptable to various requests and locations

**Features:** macOS Compatibility

**In-app purchases:** none


### Scent diffuse

[App page](https://appshunter.io/ios/app/scent-diffuse/id6469298101)

Control your smart scent diffuser remotely via Bluetooth or network. Adjust settings and manage your device from your smartphone.

**Highlights:** Bluetooth control, Remote network control, Smart scent management, Intelligent control

**In-app purchases:** none


## Frequently asked questions

### Is BT free?

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

### Is Scent diffuse free?

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

### Which has better reviews, BT or Scent diffuse?

Scent diffuse is rated higher. BT averages 1.6 out of 5 from 8 ratings, while Scent diffuse averages 5.0 from 1 ratings.

### Do BT or Scent diffuse have ads?

Neither BT nor Scent diffuse shows ads.

### Which is updated more often, BT or Scent diffuse?

BT ships an update every 3 months, and Scent diffuse every 3 months. Most recently, BT was updated on June 11, 2026 and Scent diffuse on September 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*