Sudoku Every Day - Pen & Paper
40 Variants Tap, Pen & Pencil
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Classic sudoku & 40 sudoku variants, handwriting recognition built for Apple Pencil (iPad), and a full iPhone mode (Tap only). Solve with a pen, a tap, or both.
Solve sudoku the way it was meant to be solved: with a pen in your hand.
Sudoku Every Day is built around Apple Pencil. Write your digits and notes directly on a paper-like board, and the app reads your handwriting — learning YOUR handwriting as you play, so recognition keeps getting better. No keyboard between you and the puzzle. Prefer tapping? A complete touch mode is built in, and on iPhone the whole app is designed for it.
41 PUZZLE TYPES
Classic sudoku plus a deep library of variants: Killer, Thermo, Kropki, XV, Windoku, Irregular, Diagonal, Arrow, Renban, German Whispers, Palindrome, Skyscraper, X-Sums, Little Killer, Clone, Fortress, Odd-Even, Quadruple, Mathrax, Greater Than, and many more — over 300 puzzles, organized by family so you can find your favorites.
MADE FOR SOLVERS
• Handwriting recognition that adapts to you — private, on-device, never uploaded
• Every note style: corner, center, grid, and Snyder notation
• Draw links between candidates for chains and coloring techniques
• Bookmarks and rewind to explore bifurcations without losing your place
• A customizable favorites bar — your tools, your colors, your layout
• Digit spotlight, number lock, and completion shading for fast scanning
HELP ONLY WHEN YOU WANT IT
Hints escalate gently and never judge — from a nudge toward the right area to a full technique walkthrough. Every assist can be switched off. The app never fills in a cell for you.
EASY ON THE EYES
A warm, paper-like board designed for long sessions.
YOUR DATA STAYS YOURS
No accounts, no tracking, no data collection. Your handwriting model lives on your device.
Start free. One simple one-time purchase unlocks unlimited play — no subscription, ever.
Ratings & Reviews
What's New (1.1)
The big one: Sudoku Every Day now has 41 puzzle types - up from 3.
• 37 new variants, 40 total: Killer, Thermo, Kropki, XV, Windoku, Irregular, Little Killer, Clone, Skyscraper, X-Sums, Renban, German Whispers, Arrow, Diagonal, Greater Than, and many more
• iPhone support - a tap-optimized layout built for one hand, with the full variant library
• The variant library is organized into families (Lines, Outside Clues, Cages, and more) with collapsible sections
• A candidate-linking tool for chain and coloring techniques
• Smarter notes: choose whether conflicting notes are kept, marked, or removed automatically
• Digit completion shading on the number pad
• Dozens of refinements to tools, the favorites bar, and pen-mode handwriting
Thanks for playing - more puzzles are on the way in every update.
The developer, Erin Sosnoski, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Erin Sosnoski
- Size
- 11.3 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17 or later.
- iPhone
Requires iOS 17 or later. - iPad
Requires iPadOS 17 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Sudoku Pro $3.99
- Copyright
- © 2026 Erin Sosnoski