# Scent System vs XCQY

Scent System and XCQY are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Scent System ships an update every 2 weeks, XCQY every 9 days. The most recent releases landed on October 15, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Scent System | XCQY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/scent-system/id1479815198/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 25 MB | 180 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Guangzhou Lanmei Computer Technology Co., Ltd.](https://appshunter.io/developer/989104097) | [NANCY JEAN LARSEN](https://appshunter.io/developer/6775162891) |

## What reviewers say

### Scent System

[App page](https://appshunter.io/ios/app/scent-system/id1479815198)

Control your smart fragrance diffuser remotely. Schedule its operation, manage power-off modes, and register new users. This app also facilitates binding smart home appliances via LAN scanning.

**Highlights:** Remote fragrance machine control, Scheduling fragrance machine operation, Safe power-off mode control, Smart home appliance binding, User registration

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

**In-app purchases:** none


### XCQY

[App page](https://appshunter.io/ios/app/xcqy/id6775162889)

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

**In-app purchases:** none


## Frequently asked questions

### Is Scent System free?

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

### Is XCQY free?

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

### Do Scent System or XCQY have ads?

Neither Scent System nor XCQY shows ads.

### Which is updated more often, Scent System or XCQY?

Scent System ships an update every 2 weeks, and XCQY every 9 days. Most recently, Scent System was updated on October 15, 2026 and XCQY on September 28, 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.*