Somnus vs Sky Castle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Somnus
Embark on a dreamlike journey solving hundreds of logic puzzles. Uncover captivating stories and reveal stunning pixel art as you progress through various difficulty levels and game modes. Enjoy intuitive controls and helpful options for a seamless puzzle-solving experience.
- Hundreds of logic puzzles
- Amazing pixel art
- Story progression
- Multiple difficulty levels
- Normal and BigMap modes
- Intuitive controls and zoom
- User accommodating options
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In the quiet of night when everyone else is asleep, take a fantastic journey through dream land. This story is about a dream we all once had during our childhood. Discover the stories that await you at the end of the dream. We'll be waiting for you inside the dream of Nonogram. [Features] - Hundreds of puzzles available. - Amazing pixel art. - Tested puzzle logic (logical solving possible) - iCloud save feature. - Current puzzle is auto-saved when ending game. - Wider range of difficulty levels (10x10, 15x15, 20x20) - The regular Normal mode and the BigMap mode that completes the story. - Various controls (Touch, pad, magnifying). - Additional two-finger zoom out, zoom in, move, and undo features. - Various user accommodating options (Auto answer check, UI location change, Life On/Off, etc.) - Entertaining story that progresses as puzzles are solved
Sky Castle
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.
- Hundreds of puzzle games
- Color dot design
- Detailed puzzle logic check
- Auto-save functionality
- Multiple difficulty levels
- Convenient touch interface
- One-handed mode
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Complete your journey to the amazing Castle of Heaven by solving the puzzle. A fantastic journey to find the castle in the sky you first saw when you were young. See the beautiful scenery of the sea, mountains and valleys on your journey to the castle. Solve the puzzles and complete the journey to your wonderful destination. *Special features* - Hundreds of puzzle games are available. - Great color dot design to match the map’s themes. - Detailed puzzle logic check. - Auto-save for puzzles in play. - Various level of difficulty (5x5, 10x10, 15x15, 20x20) - Convenient interface using touch & pad simultaneously. - Various plays available through single map and big map. - Hint function. - Provides a variety of functions for user convenience (auto answer check, Undo / Redo) - Zoom-in, zoom-out and move function using two fingers. - One-handed mode support for using in public/crowded places. License confirmation file BGM--- Zen Yoga - Music by Manuel Ochoa / Melody Loops Dreamy Dreamland - Music by AG Music / Melody Loops Just A Little Hope - Music by AG Music / Melody Loops
Screenshots
Verdict
The clearest difference is ads: Somnus at none against Sky Castle's shown. Somnus also leads on update cadence (every 6 days vs every 3 months) and monetization model (free vs free with in-app purchases). On price, rating, review sentiment and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Somnus sells 2 one-off in-app purchases and Sky Castle sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Sky Castle holds the better App Store score, 4.9 against 4.8. That said, the two scores are not equally well evidenced: Somnus has 232 ratings behind it against 27, so its average is the more settled of the two. Written reviews split almost evenly too, at 83% and 83% positive.
Somnus ships an update every 6 days, Sky Castle every 3 months. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.
| Parameter | Somnus | Sky Castle |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (232 ratings) | 4.9 (27 ratings) — better |
| Positive reviews | 82.7% of reviews | 82.8% of reviews — better |
| Number of ratings | 232 — better | 27 |
| Update frequency | Every 6 days — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 187 MB | 110 MB |
| Age rating | 4+ | 4+ |
| Developer | sung ho cho | KWANG YEOUL YOO |
Customer experience
Somnus
Sky Castle
User reviews
Somnus
From 232 App Store ratingsWhat we love
- 💖 Beautiful graphics and art
- 🎵 Soothing music and relaxing atmosphere
- 🧩 Addictive and enjoyable puzzle gameplay
- 📚 Engaging storyline and lore
- ⏱️ Can be played in short or long sessions
Room to improve
- 💸 Way too many ads
- ⏳ Ads after every level, even non-story
- 😩 Frustrating ad experience
- 🔄 Exiting ads leads back to menu
- 😵 Ads are annoying and interrupt gameplay
Sky Castle
From 27 App Store ratingsWhat we love
- 🎶 Beautiful music
- 🎨 Pretty art and visuals
- 😌 Relaxing and calming gameplay
- 🧠 Good for ADHD and anxiety
- 📚 Playable while listening to audiobooks
Room to improve
- 😔 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
Bugs and requests
Somnus
Reported bugs
2 issues- Pay/shopping cart option doesn't work
- Games freeze on the first screen
Requested features
4 requests- More story content or sequel
- Option to disable animations
- App remembers last played state
- Continue game after leaving app
Sky Castle
Reported bugs
11 issues- 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
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- Ads still appear after paying for ad-free
- App closes unexpectedly
- Bug where filling a square disappears
- Bug where clicking wrong spot doesn't show error
- Bug where hearts disappear without action
- Bug with 7th level 'tweezer'
Requested features
8 requests- More levels/content
- Account linking (Facebook/Google) for progress sync
- Option to reset progress
- Improve button placement for larger puzzles
- Better translation for instructions
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- Add more puzzles to the list
- Make screen larger or puzzles smaller
- Add a back button
In-app purchases
Somnus
- Hint 30$0.99
- Remove Ads$2.99
Sky Castle
- remove ad$2.99









