Zdoku

Sudoku, solo or with friends!

Free · Designed for iPad. Not verified for macOS.

Sudoku, unhurried. No ads, no in-app purchases, no account needed. Play at your own pace, race the clock for a global rank, or take on up to three friends live. Zdoku is Sudoku the way it should be: free, quiet, and out of your way. No ads interrupting a solve. Nothing to buy. No account unless you want one. Three ways to play Zen — no scoring, no timer pressure, no account. Just a puzzle and as long as you like to finish it. Pause whenever you want. Leaderboard — the clock is running and your time is ranked against everyone else's. Four difficulties, each with its own board. Multiplayer — up to four players race on the same puzzle in real time. Every player has a colour, correct cells lock in as they are found, and you can see the board fill up as it happens. Create a room and share the code, or join a public one. Built for actually playing • Four difficulties: Easy, Medium, Hard and Expert • Pencil notes, including marking several cells in a box at once • Realtime feedback in Zen, or turn it off and check at the end • Twelve themes, from bamboo forest to jellyfish to a night sky • Three background music tracks, or none at all • Your finished games are kept so you can look back at them No account needed Play as a guest and never sign up. If you want a name on the leaderboard, an account takes a username and a password — an email is optional, and only used if you forget that password. You can delete your account, and everything attached to it, from inside the app. Available in English, Spanish, French and German. Zdoku also plays in any browser at zdoku.com — the same puzzles, the same leaderboard, the same rooms.

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The developer, ETHERVOX, LLC, 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 Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info
    • User Content
    • Identifiers

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

Accessibility

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

Information

Seller
  • ETHERVOX, LLC
Size
  • 37.9 MB
Category
  • Puzzle
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPad
    Requires iPadOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © 2026 Ethervox, LLC
  • Privacy Policy

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