# EXCEL Plumbing Supplies vs Onyx CSS

The clearest difference is update cadence: Onyx CSS at every 6 months against EXCEL Plumbing Supplies's every 41 months. EXCEL Plumbing Supplies's advantage is iOS requirement (8.0 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.

EXCEL Plumbing Supplies ships an update every 41 months, Onyx CSS every 6 months. The most recent releases landed on December 22, 2025 and October 27, 2026 respectively.

## The numbers

| Metric | EXCEL Plumbing Supplies | Onyx CSS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 6 months** |
| Size | 7 MB | 24 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Spruce Computer Systems Inc.](https://appshunter.io/developer/976267648) | [Ultimate Solutions](https://appshunter.io/developer/1190319655) |

## What reviewers say

### EXCEL Plumbing Supplies

[App page](https://appshunter.io/ios/app/excel-plumbing-supplies/id986107535)

**Features:** macOS Compatibility

**In-app purchases:** none


### Onyx CSS

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EXCEL Plumbing Supplies free?

EXCEL Plumbing Supplies is free to download, with no in-app purchases.

### Is Onyx CSS free?

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

### Do EXCEL Plumbing Supplies or Onyx CSS have ads?

Neither EXCEL Plumbing Supplies nor Onyx CSS shows ads.

### Which is updated more often, EXCEL Plumbing Supplies or Onyx CSS?

EXCEL Plumbing Supplies ships an update every 41 months, and Onyx CSS every 6 months. Most recently, EXCEL Plumbing Supplies was updated on December 22, 2025 and Onyx CSS on October 27, 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.*