# Smart Diffuser vs HIKAYAH

The clearest difference is rating: HIKAYAH at 5.0 against Smart Diffuser's 2.7. HIKAYAH also leads on iOS requirement (9.0 vs 12.0). Smart Diffuser's advantage is ratings volume (6 vs 1). On price, update cadence, 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.

HIKAYAH holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: Smart Diffuser has 6 ratings behind it against 1, so its average is the more settled of the two.

Smart Diffuser ships an update every 6 weeks, HIKAYAH every 2 months. The most recent releases landed on July 7, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Smart Diffuser | HIKAYAH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (6 ratings)](https://appshunter.io/ios/app/smart-diffuser/id1436466932/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hikayah/id1619510023/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 42 MB | 25 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [秦庚 蒋](https://appshunter.io/developer/1436462643) | [abdulrahman alshaya](https://appshunter.io/developer/1619510025) |

## What reviewers say

### Smart Diffuser

[App page](https://appshunter.io/ios/app/smart-diffuser/id1436466932)

Control your smart scent machine remotely via Wi-Fi. Adjust scent intensity, monitor oil levels, and manage multiple devices. Authorize other users and group machines for business use.

**Highlights:** Remote Wi-Fi control, Scent intensity adjustment, Oil level monitoring, User authorization, Device grouping, Employee account management

**In-app purchases:** none


### HIKAYAH

[App page](https://appshunter.io/ios/app/hikayah/id1619510023)

Control your smart scent diffusers with this app. Manage schedules, adjust fragrance intensity, and create groups of devices for personalized scent experiences. Connect via Bluetooth or WiFi for seamless control.

**Highlights:** Bluetooth & WiFi control, Manage diffuser schedules, Adjust fragrance intensity, Create device groups, Personalized scent experiences, Device control without login (Bluetooth)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart Diffuser free?

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

### Is HIKAYAH free?

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

### Which has better reviews, Smart Diffuser or HIKAYAH?

HIKAYAH is rated higher. Smart Diffuser averages 2.7 out of 5 from 6 ratings, while HIKAYAH averages 5.0 from 1 ratings.

### Do Smart Diffuser or HIKAYAH have ads?

Neither Smart Diffuser nor HIKAYAH shows ads.

### Which is updated more often, Smart Diffuser or HIKAYAH?

Smart Diffuser ships an update every 6 weeks, and HIKAYAH every 2 months. Most recently, Smart Diffuser was updated on July 7, 2026 and HIKAYAH on September 19, 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.*