# BlueLogic Sudoku — Calm brain & number puzzle

> Calm brain & number puzzle (iPhone/iPad app by Ali Seckin.)

- Source: https://appshunter.io/ios/app/bluelogic-sudoku/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: 2026-08-04
- User reviews in markdown: https://appshunter.io/ios/app/bluelogic-sudoku/id6763358482/reviews.md

## What is BlueLogic Sudoku?

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)

### 1.3.9 — 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.

### 1.3.5 — 2026-07-10

Amber brand refresh and a big visual update:
• 9 color palettes — Amber, Paper, Sakura and more, with a redesigned 3-column picker
• AMOLED true-black theme
• Real sound effects + dedicated game haptics
• Clear cross marks on wrong cells, smarter keypad fixes
• Quick settings button on the game screen, portrait lock
• Faster ad loading and stability improvements

### 1.1.0 — 2026-05-04

Big update for BlueLogic Sudoku!                                                                                        
  - New: AMOLED Dark theme for OLED screens — true black, easier on the eyes                                                                               
  - New: System language option follows your device automatically                                                                                          
  - New: Rate Us & Recommend Us in About — share or rate in one tap                                                                                        
  - Quick Settings access right from the in-game toolbar                                                                                                   
  - Refreshed Settings layout — language, theme, palette in a cleaner grid                                                                                 
  - Fixed: ads not appearing at the start of a game                                                                                                        
                                                                                                                                                           
  Thanks for playing!

## 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)

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 2026-08-04.*