# ScentAir vs Control4

The clearest difference is rating: Control4 at 3.5 against ScentAir's 2.2. Control4 also leads on review sentiment (38% vs 17%) and update cadence (fortnightly vs monthly). ScentAir's advantage is iOS requirement (15.0 vs 18.0). On price, ratings volume, 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.

Control4 holds the better App Store score, 3.5 against 2.2. Both are backed by a comparable volume of ratings — 83 and 72 respectively. Written reviews point the same way: 17% of ScentAir's written reviews are positive against 38% of Control4's.

ScentAir ships an update monthly, Control4 fortnightly. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | ScentAir | Control4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (83 ratings)](https://appshunter.io/ios/app/scentair/id1528203566/reviews) | **[3.5 (72 ratings)](https://appshunter.io/ios/app/control4/id6618112371/reviews)** |
| Number of ratings | **83** | 72 |
| Positive reviews | 16.7% of reviews | **38.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | Free |
| Size | 80 MB | 253 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [ScentAir Technologies, LLC](https://appshunter.io/developer/1496832699) | [Snap One, LLC](https://appshunter.io/developer/417819127) |

## What reviewers say

### ScentAir

[App page](https://appshunter.io/ios/app/scentair/id1528203566)

Manage your scent marketing system remotely. Control fragrance intensity, create custom schedules, and monitor system health from anywhere. Offers both Wi-Fi and Bluetooth connectivity for seamless operation.

**Highlights:** Wi-Fi and Bluetooth control, Fragrance intensity adjustment, Customizable scent scheduling, Remote system monitoring, Automated alert notifications, Multi-system management

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Control4

[App page](https://appshunter.io/ios/app/control4/id6618112371)

Manage your smart home devices like lighting, music, and security from a single, intuitive interface. Customize your home screen and create automated routines for seamless control. Integrates with Apple HomeKit for Siri voice commands.

**Highlights:** All-in-one home screen control, Customizable favorites and widgets, Automated routines and scenes, Multiroom entertainment management, Live camera views and security alerts, Apple HomeKit and Siri integration

**Features:** macOS Compatibility, Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ScentAir free?

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

### Is Control4 free?

Control4 is free to download, with no in-app purchases.

### Which has better reviews, ScentAir or Control4?

Control4 is rated higher. ScentAir averages 2.2 out of 5 from 83 ratings, while Control4 averages 3.5 from 72 ratings.

### Do ScentAir or Control4 have ads?

Neither ScentAir nor Control4 shows ads.

### Which is updated more often, ScentAir or Control4?

ScentAir ships an update monthly, and Control4 fortnightly. Most recently, ScentAir was updated on October 20, 2026 and Control4 on October 21, 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.*