# Aroma IoT vs Scent Master Pro

The clearest difference is review sentiment: Scent Master Pro at 100% against Aroma IoT's 18%. Scent Master Pro also leads on rating (5.0 vs 1.7) and iOS requirement (13.0 vs 15.0). Aroma IoT's advantage is ratings volume (19 vs 2). 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 Master Pro holds the better App Store score, 5.0 against 1.7. That said, the two scores are not equally well evidenced: Aroma IoT has 19 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 18% of Aroma IoT's written reviews are positive against 100% of Scent Master Pro's.

Aroma IoT ships an update monthly, Scent Master Pro fortnightly. The most recent releases landed on August 5, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Aroma IoT | Scent Master Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (19 ratings)](https://appshunter.io/ios/app/aroma-iot/id1479180534/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/scent-master-pro/id6499073832/reviews)** |
| Number of ratings | **19** | 2 |
| Positive reviews | 18.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | Free |
| Size | 29 MB | 180 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [建美 王](https://appshunter.io/developer/1479180533) | [兵 姚](https://appshunter.io/developer/1546606210) |

## What reviewers say

### Aroma IoT

[App page](https://appshunter.io/ios/app/aroma-iot/id1479180534)

Control smart fragrance devices remotely via WiFi or mobile network. Manage device settings, view maintenance history, and group devices for efficient management. Offers authorization and employee management features.

**Highlights:** Remote device control, Network configuration, Maintenance records, Group management, Authorization management, Employee management, Intelligent search and sorting

**In-app purchases:** none


### Scent Master Pro

[App page](https://appshunter.io/ios/app/scent-master-pro/id6499073832)

This intelligent fragrance management app allows real-time monitoring and remote control of connected devices. Users can customize working modes, set schedules, and track oil levels for a seamless experience.

**Highlights:** Remote device control, Custom working modes, Real-time oil level monitoring, Intelligent usage calibration, Device sharing management, Scheduled operation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Aroma IoT free?

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

### Is Scent Master Pro free?

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

### Which has better reviews, Aroma IoT or Scent Master Pro?

Scent Master Pro is rated higher. Aroma IoT averages 1.7 out of 5 from 19 ratings, while Scent Master Pro averages 5.0 from 2 ratings.

### Do Aroma IoT or Scent Master Pro have ads?

Neither Aroma IoT nor Scent Master Pro shows ads.

### Which is updated more often, Aroma IoT or Scent Master Pro?

Aroma IoT ships an update monthly, and Scent Master Pro fortnightly. Most recently, Aroma IoT was updated on August 5, 2026 and Scent Master Pro 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.*