Sereno Sudoku: Offline Classic

Killer, nonogram, big digits

Only for iPhone

Free · In‑App Purchases

iPhone

Sereno Sudoku is sudoku built for playing without rushing: large, clear digits, a clean design, and nothing to distract you from the board. It is now three logic games in one app: Sudoku, Killer Sudoku and Nonogram. • Classic Sudoku in three difficulties, easy to hard, always with a unique solution • New: Killer Sudoku, the one with sums. Three levels with 120 puzzles each, every one with a verified unique solution and no given digits, the way the genre is meant to be. Included, no purchase needed, with its own "How to play" guide • Nonograms (picross): pictures you uncover with logic, with large numbers • Daily Sudoku challenge with a monthly calendar and streak. Play today's or catch up on any day you missed • Notes with automatic clean-up and unlimited undo. In Sudoku, hints show you the technique instead of just filling the cell • Number-first mode: pick a digit, then tap the cells where it goes • Row, column, box and matching-digit highlighting so you can read the board at a glance • Three themes: light, sepia and dark. Adjustable digit size • Optional original music, relaxing and unobtrusive • No lives, no energy, no waiting. No forced ads mid-game: the only ad that shows up on its own comes after you finish, and videos for an extra hint are always your choice • In English, Spanish, Portuguese, French, German and Italian • Works completely offline, no account needed Premium (optional, one-time purchase) gives unlimited hints, unlocks the dark theme and removes ads. Family Sharing supported: buy it once and share it with your family. A game by Vossen.

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New: choose how the board looks. A traditional grid with its lines, just like sudoku on paper, or tiles. It applies to Sudoku and Killer, and you can switch any time in Settings → Game.

The developer, RAFAEL DAVID DEVOS CEREZO, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
    • Usage Data
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
RAFAEL DAVID DEVOS CEREZO
Size
111.8 MB
Category
Puzzle
Compatibility
Requires iOS 17.0 or later and a device with the A12 Bionic chip or later.
  • iPhone
    Requires iOS 17.0 or later and a device with the A12 Bionic chip or later.
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Languages
English and 5 more
  • English, French, German, Italian, Portuguese, Spanish
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 Vossen