OhMaSudoku

Sudoku hints that teach

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Stuck? Get the technique, not the answer. 5,500 classic puzzles, 1,200 variants like Killer and Jigsaw, a daily puzzle, and 24 techniques to learn. When you're stuck, OhMaSudoku doesn't just fill in the answer. It shows you the technique you can use right now. Hints in two steps First it shows you where to look. If you still can't see it, it names the technique and explains why it works. From pointing and naked pairs to X-Wing and XY-Chain, it marks all 24 techniques right on the board. 6,700 puzzles • 5,500 classic puzzles in seven levels: Easy, Normal, Tricky, Hard, Expert, Master and GOAT • 1,200 variants: Killer, X Sudoku, Jigsaw and Windoku • Every puzzle has one solution. Every puzzle except GOAT can be solved with techniques alone, no guessing. Daily puzzle A new puzzle every day for each level. Everyone gets the same puzzle on the same day, so it's easy to compare results. Past days are in the calendar. Learn the techniques Read how each technique works, then find it yourself on a real puzzle. Comfortable to play • Cell first or number first • Notes, candidates, select several cells at once, color cells • Show mistakes right away, check when the board is full, or end after 3 mistakes • Keep several games saved • Stats, scores and badges, plus Game Center achievements and daily leaderboards • Dark mode, large text, theme colors • 한국어, English, 日本語, 简体中文, 繁體中文, Español, Português, ไทย Ads There's a banner at the bottom and ads between games. Full-screen ads never appear while you're solving. You get 3 free hints per game, and you can watch an ad for more. One purchase removes all ads and gives you unlimited hints. No account Your records stay on this device and carry over to your other devices through iCloud on the same Apple Account. You can also export a file from the Stats screen.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

The developer, seunghee ma, 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

  • Data Linked to You

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

    • Identifiers
    • Diagnostics

  • Data Not Linked to You

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

    • Location
    • Usage Data
    • Diagnostics

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
seunghee ma
Size
8.2 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.
Languages
English and 7 more
  • English, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Thai, Traditional Chinese
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 OhMa Lab
  • Developer Website
  • Privacy Policy

    • Supports

    • Game Center

      Discover new games and play with friends. This game also features leaderboards and achievements.

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

    More by seunghee ma