# Sky Castle vs Cube 27

The clearest difference is in-app purchases: Cube 27 at none against Sky Castle's 1. Cube 27 also leads on update cadence (every 5 days vs every 3 months). Sky Castle's advantage is iOS requirement (11.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Sky Castle sells 1 one-off in-app purchase. Cube 27 asks for nothing beyond the download.

Sky Castle ships an update every 3 months, Cube 27 every 5 days. The most recent releases landed on September 30, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Sky Castle | Cube 27 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (25 ratings)](https://appshunter.io/ios/app/sky-castle-nonogram/id1478086665/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 82.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 110 MB | 10 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KWANG YEOUL YOO](https://appshunter.io/developer/971661897) | [SAID ARI](https://appshunter.io/developer/6807519559) |

## What reviewers say

### Sky Castle

[App page](https://appshunter.io/ios/app/sky-castle-nonogram/id1478086665)

Embark on a puzzle-solving adventure to reach a heavenly castle. Enjoy hundreds of logic puzzles with beautiful scenery and a convenient interface. Features include hints, auto-save, and one-handed mode for on-the-go play.

**Highlights:** Hundreds of puzzle games, Color dot design, Detailed puzzle logic check, Auto-save functionality, Multiple difficulty levels, Convenient touch interface, One-handed mode

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| remove ad | $2.99 | one-time |


### Cube 27

[App page](https://appshunter.io/ios/app/cube-27/id6807519557)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sky Castle free?

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

### Is Cube 27 free?

Cube 27 is free to download, with no in-app purchases.

### Do Sky Castle or Cube 27 have ads?

Both Sky Castle and Cube 27 show ads.

### Which is updated more often, Sky Castle or Cube 27?

Sky Castle ships an update every 3 months, and Cube 27 every 5 days. Most recently, Sky Castle was updated on September 30, 2026 and Cube 27 on October 8, 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.*