# Kropki Sudoku Puzzle 2026 — Offline advanced Sudoku puzzle

> Offline advanced Sudoku puzzle (iPhone/iPad app by hao du.)

- Source: https://appshunter.io/ios/app/kropki-sudoku-puzzle-2026/id6780214940 (this page in markdown: same URL + `.md`)
- Developer: [hao du](https://appshunter.io/developer/1454457703)
- Category: Games
- Price: $0.29 (on sale, was $0.39)
- Age rating: 4+
- Requires: iOS 15.6 · 1 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China), European Spanish
- Released: 2026-06-17
- Data updated: 2026-08-12
- User reviews in markdown: https://appshunter.io/ios/app/kropki-sudoku-puzzle-2026/id6780214940/reviews.md

## What is Kropki Sudoku Puzzle 2026?

Kropki Sudoku is a fully offline logic puzzle game based on classic Sudoku with extra black and white dot clues. Fill the grid by following standard Sudoku rules, plus Kropki rules: a black dot means two neighboring numbers have a 1:2 ratio, while a white dot means they differ by 1.

This app is made for players who already enjoy Sudoku and want a deeper paper-and-pencil style challenge. No account, no login, no network connection, no ads, and no data collection. Puzzle progress, results, and settings are stored only on your device.

Key features:
- Kropki Sudoku puzzles: offline puzzle sets across multiple difficulty levels, using black-dot ratio clues and white-dot consecutive clues.
- Candidate notes: mark possible numbers, clear notes quickly, and spot conflicts more easily.
- Logic aids: optional error checks, duplicate-number hints, and rule-conflict highlights.
- Local progress: save unfinished puzzles, completion times, best results, and difficulty statistics.
- Practice tools: undo and redo, draft mode, timer toggle, and night mode.

Whether you want a quick logic break or a tougher grid to solve step by step, Kropki Sudoku gives you a focused offline puzzle experience.


## Version history (last 2 releases)

### 1.1 — 2026-08-04

Added a feedback feature.

### 1.0 — 2026-06-17

No release notes.

## More apps by hao du

- [Puzzle: Calculate 24](https://appshunter.io/ios/app/puzzle-calculate-24/id6760665747)
- [Pomodoro Focus Time](https://appshunter.io/ios/app/pomodoro-focus-time/id6761978201)
- [WiFi Password Memo](https://appshunter.io/ios/app/wifi-password-memo/id6762079284)
- [Password Generator New](https://appshunter.io/ios/app/password-generator-new/id6762613117)
- [Speed Test-2](https://appshunter.io/ios/app/speed-test-2/id6762631974)
- [节拍器极简](https://appshunter.io/ios/app/id6762840147)

All apps by hao du: https://appshunter.io/developer/1454457703

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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 2026-08-12.*