# Keruj vs Black Diamond

The clearest difference is update cadence: Keruj at every 9 days against Black Diamond's every 6 weeks. 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.

Keruj ships an update every 9 days, Black Diamond every 6 weeks. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Keruj | Black Diamond |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 6 weeks |
| Size | 46 MB | 93 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Oleksii Topolianskyi](https://appshunter.io/developer/1581391708) | [STAKHOV GROUP, TOV](https://appshunter.io/developer/1501335251) |

## What reviewers say

### Keruj

[App page](https://appshunter.io/ios/app/keruj/id6447462201)

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

**In-app purchases:** none


### Black Diamond

[App page](https://appshunter.io/ios/app/black-diamond/id6475722012)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Keruj free?

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

### Is Black Diamond free?

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

### Do Keruj or Black Diamond have ads?

Neither Keruj nor Black Diamond shows ads.

### Which is updated more often, Keruj or Black Diamond?

Keruj ships an update every 9 days, and Black Diamond every 6 weeks. Most recently, Keruj was updated on September 19, 2026 and Black Diamond on September 10, 2026.

---

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