The game at a glance
Solve offline Sudoku with pencil notes, logical hints, daily puzzles and four difficulty levels.
What changes on Duo?
Open layouts separate the board from a large number pad across the fold; laptop posture puts the pad flat, and closed offers a complete outer-screen game.
A look inside
Developer App Store screenshots. These may show a standard iPhone or iPad layout; no Duo screenshot is confirmed for this listing.
How we chose this listing
This is a source-based listing. We have not tested this game on a physical iPhone Duo. Our latest catalog check is dated 2026-11-02. Read the supporting source ↗