# GreenSignal vs Scent diffuse

The clearest difference is update cadence: GreenSignal at every 3 weeks against Scent diffuse's every 3 months. GreenSignal also leads on iOS requirement (9.0 vs 15.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for GreenSignal against 5.0 for Scent diffuse. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

GreenSignal ships an update every 3 weeks, Scent diffuse every 3 months. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | GreenSignal | Scent diffuse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/greensignal-gs/id1555192645/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/scent-diffuse/id6469298101/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 12 MB | 22 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rawaieh ALZuhor Cleaning & Detergent TR](https://appshunter.io/developer/1453355635) | [春荣 杨](https://appshunter.io/developer/1677484703) |

## What reviewers say

### GreenSignal

[App page](https://appshunter.io/ios/app/greensignal-gs/id1555192645)

This application allows you to control smart devices remotely. Connect via Bluetooth, data, or WiFi to manage device functions like temperature, power, and timing. It also supports scanning and adding new smart devices.

**Highlights:** Bluetooth device control, Data and WiFi connection, Scan and add smart devices, Remote temperature control, Remote switch control, Timing functions

**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 GreenSignal free?

GreenSignal 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, GreenSignal or Scent diffuse?

GreenSignal and Scent diffuse are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do GreenSignal or Scent diffuse have ads?

Neither GreenSignal nor Scent diffuse shows ads.

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

GreenSignal ships an update every 3 weeks, and Scent diffuse every 3 months. Most recently, GreenSignal was updated on October 1, 2026 and Scent diffuse on October 9, 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.*