# Scent Lab vs Horsepower Grid

The clearest difference is update cadence: Horsepower Grid at fortnightly against Scent Lab's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scent Lab ships an update every 4 months, Horsepower Grid fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Scent Lab | Horsepower Grid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (7 ratings)](https://appshunter.io/ios/app/scent-lab/id6752229817/reviews)** | — |
| Number of ratings | **7** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 33 MB | 86 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [俊 谢](https://appshunter.io/developer/1440271932) | [HENRY HALL](https://appshunter.io/developer/6816534368) |

## What reviewers say

### Scent Lab

[App page](https://appshunter.io/ios/app/scent-lab/id6752229817)

Control your smart scent diffuser with this application. Adjust settings and manage your aromatherapy experience remotely.

**Highlights:** Smart scent diffuser control, Remote management, Aromatherapy experience adjustment, Customizable settings

**In-app purchases:** none


### Horsepower Grid

[App page](https://appshunter.io/ios/app/horsepower-grid/id6816534366)

**In-app purchases:** none


## Frequently asked questions

### Is Scent Lab free?

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

### Is Horsepower Grid free?

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

### Do Scent Lab or Horsepower Grid have ads?

Neither Scent Lab nor Horsepower Grid shows ads.

### Which is updated more often, Scent Lab or Horsepower Grid?

Scent Lab ships an update every 4 months, and Horsepower Grid fortnightly. Most recently, Scent Lab was updated on October 30, 2026 and Horsepower Grid on October 31, 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.*