# Onyx CSS vs CIR

Onyx CSS and CIR are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, CIR every 4 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Onyx CSS | CIR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Size | 24 MB | 37 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Ultimate Solutions](https://appshunter.io/developer/1190319655) | [Hadaf Solutions](https://appshunter.io/developer/1263923912) |

## What reviewers say

### Onyx CSS

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

**Features:** macOS Compatibility

**In-app purchases:** none


### CIR

[App page](https://appshunter.io/ios/app/cir/id6476621590)

**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 CIR free?

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

### Do Onyx CSS or CIR have ads?

Neither Onyx CSS nor CIR shows ads.

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

Onyx CSS ships an update every 6 months, and CIR every 4 months. Most recently, Onyx CSS was updated on September 23, 2026 and CIR on September 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*