# Indian River® vs Onyx IX CSS

The clearest difference is update cadence: Indian River® at every 2 months against Onyx IX CSS's every 4 months. Indian River® also leads on iOS requirement (10.0 vs 13.0). 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.

Indian River® ships an update every 2 months, Onyx IX CSS every 4 months. The most recent releases landed on September 17, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Indian River® | Onyx IX CSS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 104 MB | 27 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aviagen Group](https://appshunter.io/developer/581541670) | [Ultimate Solutions](https://appshunter.io/developer/1190319655) |

## What reviewers say

### Indian River®

[App page](https://appshunter.io/ios/app/indian-river/id1435785862)

**Features:** macOS Compatibility

**In-app purchases:** none


### Onyx IX CSS

[App page](https://appshunter.io/ios/app/onyx-ix-css/id1584092874)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Indian River® free?

Indian River® is free to download, with no in-app purchases.

### Is Onyx IX CSS free?

Onyx IX CSS is free to download, with no in-app purchases.

### Do Indian River® or Onyx IX CSS have ads?

Neither Indian River® nor Onyx IX CSS shows ads.

### Which is updated more often, Indian River® or Onyx IX CSS?

Indian River® ships an update every 2 months, and Onyx IX CSS every 4 months. Most recently, Indian River® was updated on September 17, 2026 and Onyx IX CSS 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.*