# Onyx CSS vs imaxapp

The clearest difference is update cadence: imaxapp at fortnightly against Onyx CSS's every 6 months. Onyx CSS's advantage is iOS requirement (13.0 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.

Onyx CSS ships an update every 6 months, imaxapp fortnightly. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Onyx CSS | imaxapp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Size | 24 MB | 93 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ultimate Solutions](https://appshunter.io/developer/1190319655) | [Mahmoud Al-BAHERI](https://appshunter.io/developer/1477096761) |

## What reviewers say

### Onyx CSS

[App page](https://appshunter.io/ios/app/onyx-css/id1561190933)

**Features:** macOS Compatibility

**In-app purchases:** none


### imaxapp

[App page](https://appshunter.io/ios/app/imaxapp/id6743095929)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Onyx CSS free?

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

### Is imaxapp free?

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

### Do Onyx CSS or imaxapp have ads?

Neither Onyx CSS nor imaxapp shows ads.

### Which is updated more often, Onyx CSS or imaxapp?

Onyx CSS ships an update every 6 months, and imaxapp fortnightly. Most recently, Onyx CSS was updated on October 10, 2026 and imaxapp on October 5, 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.*