# SMS Action Plan vs Smart Diffuser

The clearest difference is update cadence: SMS Action Plan at every 11 days against Smart Diffuser's every 5 months. SMS Action Plan also leads on iOS requirement (11.0 vs 15.0). 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.

SMS Action Plan ships an update every 11 days, Smart Diffuser every 5 months. Both last shipped on September 18, 2026.

## The numbers

| Metric | SMS Action Plan | Smart Diffuser |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/smart-diffuser/id6502768383/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 5 months |
| Monetization | — | Free |
| Size | 20 MB | 3 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sodexo Services Asia Pte. Ltd.](https://appshunter.io/developer/1192718666) | [Shenzhen Shengmu Technology Co., Ltd.](https://appshunter.io/developer/1746717166) |

## What reviewers say

### SMS Action Plan

[App page](https://appshunter.io/ios/app/sms-action-plan/id1498176506)

**Features:** Vision Pro support

**In-app purchases:** none


### Smart Diffuser

[App page](https://appshunter.io/ios/app/smart-diffuser/id6502768383)

Control your aroma diffuser remotely via Bluetooth. Adjust power, lighting, intensity, and set custom schedules. Reset your device directly from your phone.

**Highlights:** Bluetooth connectivity, Power control, Atmosphere light adjustment, Intensity settings, Schedule setup, Device reset

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SMS Action Plan free?

SMS Action Plan is free to download, with no in-app purchases.

### Is Smart Diffuser free?

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

### Do SMS Action Plan or Smart Diffuser have ads?

Neither SMS Action Plan nor Smart Diffuser shows ads.

### Which is updated more often, SMS Action Plan or Smart Diffuser?

SMS Action Plan ships an update every 11 days, and Smart Diffuser every 5 months. Most recently, SMS Action Plan was updated on September 18, 2026 and Smart Diffuser on September 18, 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.*