# Sky Castle vs GridSwan (Nonogram Puzzles)

The clearest difference is review sentiment: Sky Castle at 83% against GridSwan (Nonogram Puzzles)'s 35%. Sky Castle also leads on rating (4.9 vs 4.4) and iOS requirement (11.0 vs 17.0). GridSwan (Nonogram Puzzles)'s advantage is update cadence (every 4 days vs every 3 months) and ratings volume (134 vs 27). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Sky Castle sells 1 one-off in-app purchase and GridSwan (Nonogram Puzzles) sells 11 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Sky Castle holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 27 and 134 respectively. Written reviews point the same way: 83% of Sky Castle's written reviews are positive against 35% of GridSwan (Nonogram Puzzles)'s.

Sky Castle ships an update every 3 months, GridSwan (Nonogram Puzzles) every 4 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sky Castle | GridSwan (Nonogram Puzzles) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (27 ratings)](https://appshunter.io/ios/app/sky-castle-nonogram/id1478086665/reviews)** | [4.4 (134 ratings)](https://appshunter.io/ios/app/gridswan-nonogram-puzzles/id6443878335/reviews) |
| Number of ratings | 27 | **134** |
| Positive reviews | **82.8% of reviews** | 34.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 110 MB | 217 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [KWANG YEOUL YOO](https://appshunter.io/developer/971661897) | [ALI YILDIZ-PUZZLEHOUSEAPPS](https://appshunter.io/developer/1650208033) |

## 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 |

**What reviewers like**

- 🎶 Beautiful music
- 🎨 Pretty art and visuals
- 😌 Relaxing and calming gameplay
- 🧠 Good for ADHD and anxiety
- 📚 Playable while listening to audiobooks

**What reviewers complain about**

- 😔 Not enough levels/content
- ❓ Puzzles can be ambiguous/have multiple solutions
- 📱 Button placement issues on mobile
- ⚠️ Ads can be intrusive
- 💸 Paid ad-free not fully effective

**Reported bugs**

- Crashes frequently
- Progress not saved on crashes
- Puzzles not completing after filling
- Buttons not working correctly (e.g., 'tweezer' bug)
- Occasional duplicate solutions/ambiguous puzzles

**Requested features**

- More levels/content
- Account linking (Facebook/Google) for progress sync
- Option to reset progress
- Improve button placement for larger puzzles
- Better translation for instructions


### GridSwan (Nonogram Puzzles)

[App page](https://appshunter.io/ios/app/gridswan-nonogram-puzzles/id6443878335)

Solve logic puzzles by filling in cells based on number clues to reveal hidden images. Explore various puzzle types, including black & white, colored, and triangle grids. Design and share your own puzzles with others.

**Highlights:** Thousands of puzzles with updates, Supports standard, colored, triangle, and multi griddlers, Advanced UI controls for easy solving, Design and share custom puzzles, Backup and restore solutions

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $7.99 | per month |
| 6 Months | $33.99 | per 6 months |
| 1 Year | $59.99 | per year |
| 5 Images | $1.29 | one-time |
| Enable Checkpoint | $1.49 | one-time |
| 10 Tips | $1.99 | one-time |
| 25 Images | $3.99 | one-time |
| 50 Tips | $7.99 | one-time |
| 50 Images | $8.99 | one-time |
| 100 images | $9.99 | one-time |
| 100 Tips | $11.99 | one-time |


## Frequently asked questions

### Is Sky Castle free?

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

### Is GridSwan (Nonogram Puzzles) free?

GridSwan (Nonogram Puzzles) is free to download, with in-app purchases available.

### Which has better reviews, Sky Castle or GridSwan (Nonogram Puzzles)?

Sky Castle is rated higher. Sky Castle averages 4.9 out of 5 from 27 ratings, while GridSwan (Nonogram Puzzles) averages 4.4 from 134 ratings.

### Do Sky Castle or GridSwan (Nonogram Puzzles) have ads?

Both Sky Castle and GridSwan (Nonogram Puzzles) show ads.

### Which is updated more often, Sky Castle or GridSwan (Nonogram Puzzles)?

Sky Castle ships an update every 3 months, and GridSwan (Nonogram Puzzles) every 4 days. Most recently, Sky Castle was updated on October 21, 2026 and GridSwan (Nonogram Puzzles) on October 24, 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.*