About this app
Pencilmark Sudoku is a focused Sudoku app for players who like solving with notes, patterns, and logic. Start with classic puzzles, use outer and inner pencil marks, select multiple cells at once, and work through hints that explain the next logical step. Beginner boards emphasize simple scanning and Schneider pairs, while practice puzzles help you sharpen specific techniques. Features: - Classic Sudoku puzzles by difficulty - Fast pencil-mark entry - Multi-select for marking related cells - Smart hints with step-by-step logic - Practice mode for solving techniques - Auto-checking and conflict highlights - Portrait and landscape layouts - Local progress and stats saved on device No accounts, ads, tracking, or daily streak pressure. Just Sudoku, notes, hints, and practice.
Latest release
What’s New
- Added a technique explainer index and linked technique guidance from Quick Start. - Refined the How to Play instructions and explainer layouts. - Added responsive explainer boards and kept pencil marks inside their cells. - Added the final-number single-mark shortcut guidance. - Fixed the delay after regular taps while supporting the single-mark shortcut. - Formatted messy code
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 11, 2026 · 2:39 PM Free