# Seasons diffuser vs CasaRay

The clearest difference is in-app purchases: Seasons diffuser at none against CasaRay's 2. Seasons diffuser also leads on iOS requirement (12.0 vs 17.0). CasaRay's advantage is update cadence (every 4 days vs every 18 months) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. CasaRay sells 2 in-app purchases, starting at $3.99 per month. Seasons diffuser asks for nothing beyond the download.

Seasons diffuser ships an update every 18 months, CasaRay every 4 days. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Seasons diffuser | CasaRay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 4 days** |
| Size | 55 MB | 121 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [SSAW LLC](https://appshunter.io/developer/1644839757) | [Evotec Services sp z o.o.](https://appshunter.io/developer/6775426725) |

## What reviewers say

### Seasons diffuser

[App page](https://appshunter.io/ios/app/seasons-diffuser/id1617968782)

**Features:** macOS Compatibility

**In-app purchases:** none


### CasaRay

[App page](https://appshunter.io/ios/app/casaray/id6778025328)

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CasaRay Plus Monthly | $3.99 | per month |
| CasaRay Plus Yearly | $29.99 | per year |


## Frequently asked questions

### Is Seasons diffuser free?

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

### Is CasaRay free?

CasaRay is free to download, with in-app purchases available.

### Do Seasons diffuser or CasaRay have ads?

Neither Seasons diffuser nor CasaRay shows ads.

### Which is updated more often, Seasons diffuser or CasaRay?

Seasons diffuser ships an update every 18 months, and CasaRay every 4 days. Most recently, Seasons diffuser was updated on September 24, 2026 and CasaRay on September 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.*