# • blackball vs Coating OS

The clearest difference is iOS requirement: • blackball at 13.0 against Coating OS's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 11 days. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | • blackball | Coating OS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/blackball/id6755695476/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 days | Every 11 days |
| Monetization | Free | — |
| Size | 37 MB | 120 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Elite Database Systems LLC](https://appshunter.io/developer/1855640063) | [Jackson Stephenson](https://appshunter.io/developer/1750033151) |

## What reviewers say

### • blackball

[App page](https://appshunter.io/ios/app/blackball/id6755695476)

This app connects tradespeople to share reviews and experiences about clients. It helps contractors make informed decisions, avoid problematic clients, and build a stronger professional community through transparent feedback.

**Highlights:** Smart client scoring system, Comprehensive review system, Search and discovery for clients, Dispute resolution for reviews, Company profile management, Community engagement features

**Features:** macOS Compatibility

**In-app purchases:** none


### Coating OS

[App page](https://appshunter.io/ios/app/coating-os/id6758826079)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is • blackball free?

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

### Is Coating OS free?

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

### Do • blackball or Coating OS have ads?

Neither • blackball nor Coating OS shows ads.

### Which is updated more often, • blackball or Coating OS?

• blackball ships an update every 11 days, and Coating OS every 11 days. Most recently, • blackball was updated on October 14, 2026 and Coating OS on October 11, 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.*