# Kyvol vs Optivital Diffuser

The clearest difference is ratings volume: Kyvol at 944 against Optivital Diffuser's 2. Kyvol also leads on iOS requirement (12.0 vs 15.0). Optivital Diffuser's advantage is review sentiment (100% vs 80%). On price, rating, 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.

Optivital Diffuser holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Kyvol has 944 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 80% of Kyvol's written reviews are positive against 100% of Optivital Diffuser's.

## The numbers

| Metric | Kyvol | Optivital Diffuser |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (944 ratings)](https://appshunter.io/ios/app/kyvol/id1507378496/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/optivital-diffuser/id6801488066/reviews)** |
| Number of ratings | **944** | 2 |
| Positive reviews | 79.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Free | Free |
| Size | 158 MB | 21 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen VanTop Technology & Innovation Co., Ltd.](https://appshunter.io/developer/1461649438) | [Optivital Transportation & Services LLC](https://appshunter.io/developer/6801488068) |

## What reviewers say

### Kyvol

[App page](https://appshunter.io/ios/app/kyvol/id1507378496)

Control and manage your smart home devices with ease. This application allows you to register an account, add compatible devices, and operate them directly from your smartphone for a seamless smart living experience.

**Highlights:** Device registration, Account creation and login, Device pairing, Smart home device control, Device list management

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Works great
- 🔋 Good battery life
- 💡 Helpful features (scheduling, remote control, etc.)
- 🧹 Effective cleaning

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔍 Navigation/mapping could be improved
- 🔊 Noisy operation
- 🧹 Needs frequent maintenance (cleaning brushes, emptying bin)

**Reported bugs**

- App crashes or freezes
- Robot gets stuck or lost frequently
- Connectivity issues between app and robot

**Requested features**

- More customizable cleaning zones/areas
- Improved battery percentage display
- Ability to disable cliff sensors
- Longer run time before recharging


### Optivital Diffuser

[App page](https://appshunter.io/ios/app/optivital-diffuser/id6801488066)

Control your compatible fragrance diffuser remotely via Bluetooth. Schedule operation times, turn the device on or off, and manage multiple diffusers with an elegant interface. Create a welcoming atmosphere in various settings.

**Highlights:** Bluetooth connectivity, On/off control, Custom operating schedules, Manage connected devices, Elegant black and gold interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kyvol free?

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

### Is Optivital Diffuser free?

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

### Which has better reviews, Kyvol or Optivital Diffuser?

Optivital Diffuser is rated higher. Kyvol averages 4.8 out of 5 from 944 ratings, while Optivital Diffuser averages 5.0 from 2 ratings.

### Do Kyvol or Optivital Diffuser have ads?

Neither Kyvol nor Optivital Diffuser shows ads.

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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.*