# BlueSudoku: Calm Puzzle — Offline logic number game

> Offline logic number game (iPhone/iPad app by Ali Seckin.)

- Source: https://appshunter.io/ios/app/bluesudoku-calm-puzzle/id6763358482 (this page in markdown: same URL + `.md`)
- Developer: [Ali Seckin](https://appshunter.io/developer/1892140284)
- Category: Games, Board, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 26 MB
- Languages: American English
- Released: 2026-05-01
- Data updated: 2026-09-08
- User reviews in markdown: https://appshunter.io/ios/app/bluesudoku-calm-puzzle/id6763358482/reviews.md

## What is BlueSudoku?

BlueLogic Sudoku — a clean, minimal Sudoku puzzle experience.
• 5 difficulty levels: Easy, Medium, Hard, Expert, Evil
• Unique solution guarantee for every puzzle
• 9 handcrafted color palettes — Amber, Paper, Sakura and more, with gradient previews
• Light & dark mode, including an AMOLED true-black theme
• Note mode (pencil marks) + smart auto-note cleanup
• Error highlighting (optional) — wrong cells get a clear cross mark
• Hints with undo — free daily quota, watch a short ad for extra
• Sound effects and dedicated game haptics (each can be toggled off)
• Statistics per difficulty + daily streak
• Game Center achievements
• Offline-first — no account needed

No interstitials. No pop-ups. Just one discreet banner at the bottom that you can remove with a single in-app purchase.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |



## Version history (last 5 releases)

### 1.3.20 — 2026-08-30

• Improved game screen layout
• Layout fix for smaller screens
• UI refinements

### 1.3.19 — 2026-08-29

• You can now send suggestions and feedback from Settings › About
• New app icon and achievement badges
• Improved difficulty levels and puzzle generation
• Tablet layout fixes
• Bug fixes and stability improvements

### 1.3.9 — 2026-08-01

• Improved ad delivery and privacy handling
• Stability and performance improvements

### 1.3.8 — 2026-07-16

• Smarter hint system: bonus hints now recharge over time
• Stability and performance improvements

### 1.3.7 — 2026-07-14

Game feel improvements: a soft pop when you place a number, shake feedback on wrong entries, a glow sweep when you complete a row, column or box, deeper board shadows and more polished touches. Reduced-motion setting is respected.

## Apps similar to BlueSudoku

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Shorthanded Gregg](https://appshunter.io/ios/app/shorthanded-gregg/id6755334673) | 4.7 (9) | $3.99 | Games |
| [Sudoku Minimal Pro](https://appshunter.io/ios/app/sudoku-minimal-pro/id6755142172) | — | Free | Games |
| [Sudoku - 30 000 Puzzles](https://appshunter.io/ios/app/sudoku-30-000-puzzles/id6760778627) | — | Free | Games |
| [Sudoku Glass - AI Coach](https://appshunter.io/ios/app/sudoku-glass-ai-coach/id6761028428) | 5.0 (1) | Free | Games |
| [Sudoku - Tiny Sudoku Puzzle](https://appshunter.io/ios/app/sudoku-tiny-sudoku-puzzle/id6503942960) | — | Free | Games |

## More apps by Ali Seckin

- [BlueConvert](https://appshunter.io/ios/app/blueconvert/id6761936496)
- [Blue2048 Puzzle](https://appshunter.io/ios/app/blue2048-puzzle/id6761990940)
- [DeepToDo](https://appshunter.io/ios/app/deeptodo/id6762513175)
- [BlueTavla](https://appshunter.io/ios/app/bluetavla/id6792351346)

All apps by Ali Seckin: https://appshunter.io/developer/1892140284

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*