# Onyx IX CSS vs Thyme

The clearest difference is in-app purchases: Onyx IX CSS at none against Thyme's 3. Onyx IX CSS also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Thyme sells 3 in-app purchases, starting at $4.99 per 7 days. Onyx IX CSS asks for nothing beyond the download.

Onyx IX CSS ships an update every 4 months, Thyme every 3 months. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Onyx IX CSS | Thyme |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 27 MB | 33 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ultimate Solutions](https://appshunter.io/developer/1190319655) | [Dominik Gyecsek](https://appshunter.io/developer/1447946653) |

## What reviewers say

### Onyx IX CSS

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Thyme

[App page](https://appshunter.io/ios/app/thyme-hours-tracker-app/id6754546962)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $4.99 | per 7 days |
| Lifetime Pro | $29.99 | one-time |
| Lifetime Pro | $59.99 | one-time |


## Frequently asked questions

### Is Onyx IX CSS free?

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

### Is Thyme free?

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

### Do Onyx IX CSS or Thyme have ads?

Neither Onyx IX CSS nor Thyme shows ads.

### Which is updated more often, Onyx IX CSS or Thyme?

Onyx IX CSS ships an update every 4 months, and Thyme every 3 months. Most recently, Onyx IX CSS was updated on October 6, 2026 and Thyme on October 2, 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.*