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Raku Sudoku – logic puzzle

Raku Sudoku – logic puzzle

Classic number games no ads

2 ratings
3 reviews
🎮 Games
🎬 Entertainment
🎲 Board
🧩 Puzzle
$4.99 Free

Lowest price: $0.99 a year ago (-%)

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Price history

Details

  • Released
  • Updated
  • May 21, 2025
  • July 15, 2026

Features

Developer

Paulin Design AB
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Raku Sudoku – logic puzzle screenshot #1 for iPhone
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Raku Sudoku – logic puzzle screenshot #3 for iPhone
Raku Sudoku – logic puzzle screenshot #4 for iPhone
Raku Sudoku – logic puzzle screenshot #5 for iPhone
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About

Enjoy a premium Sudoku experience with no ads or subscriptions. This app offers six difficulty levels, including challenging 17-clue puzzles curated by a mathematician. Track your progress and compete on leaderboards.

✓Distraction-free design
✓Six difficulty levels
✓Legendary 17-clue puzzles
✓Notes, error checking, hints
✓Progress tracking and highscores
✓Game Center leaderboards
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+1

What's New in Raku Sudoku

4.4.0

July 15, 2026

New: haptic feedback for a more tactile playing experience. Raku Sudoku is now free to download. Play one Easy puzzle per day, or unlock all difficulty levels with a one-time purchase. Already purchased the app? Everything stays unlocked – no action needed.

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User reviews

Most RecentHighest RatedLowest Rated

数字の大きさ設定

数字の大きさの設定が、最初しかできない。途中で変更できない。
Tyuhgfdse6396Tyuhgfdse6396

Response from developer

レビューいただきありがとうございます。 現在の仕様では、iOSのテキストサイズ設定を変更しても、盤面の数字には反映されない仕組みとなっております。ご不便をおかけし申し訳ございません。 今後のアップデートで、盤面のレイアウトが崩れない最大サイズを上限として、プレイ中でも数字の大きさが動的に調整されるよう改善いたします。貴重なご意見をありがとうございました。

UIは良い

超絶に期待してダウンロード
うーん、簡単w
もう一色メモを追加して欲しいのと初期埋めのオートがあれば良いのに
HarumagemonHarumagemon

Response from developer

レビューとダウンロードありがとうございます！Raku Sudokuを成長させてくれるのは、まさにこういったご意見です。 いくつかご返信させてください： もっと難しい問題をご希望でしたら、ぜひ「エキスパート」「激ムズ」「超絶」もお試しください。かなり手応えがあります！ もう一色のメモ機能、とても良いアイデアです。今後の機能候補リストに加えさせていただきます。 候補数字の自動入力（初期埋め）も素晴らしいご提案です。今後のアップデートで検討します。 Raku Sudokuを今の形に育ててくれているのは、まさにプレイヤーの皆さまです。本当にありがとうございます！

Super

Genau was ich gesucht habe, die App ist ohne viel Schnickschnack, man kann direkt starten und auch zwischendurch pausieren und zum anderen Zeitpunkt weitermachen. Bin sehr zufrieden.
Cizzle97Cizzle97

Response from developer

Hallo Cizzle97, vielen Dank für die tolle 5-Sterne-Bewertung! Es freut uns sehr zu hören, dass dir das schlichte Design von Raku Sudoku gefällt und die Pausenfunktion für dich nützlich ist. Viel Spaß weiterhin beim Rätseln!

Developer apps

Vägmärken – ta körkort
Vägmärken – ta körkort

by Paulin Design AB

📚 Education
$2.99
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FAQ

What makes Raku Sudoku different from other Sudoku apps?

Raku Sudoku offers a premium, distraction-free experience with no ads or subscriptions. It features six difficulty levels, including exclusive 17-clue puzzles curated by mathematician Gordon Royle, providing a unique challenge for players.

How many difficulty levels are available in Raku Sudoku?

Raku Sudoku offers six distinct difficulty levels, ranging from 'Easy' to 'Ludicrous'. This allows players of all skill levels to find a suitable challenge, from beginner to expert.

Does Raku Sudoku have ads?

No, Raku Sudoku is designed to be completely ad-free. The app emphasizes a clean, distraction-free gameplay experience, allowing users to focus solely on solving the puzzles.

Is Raku Sudoku a subscription-based app?

No, Raku Sudoku operates on a one-time purchase model. You pay once to unlock the full game and can play it forever without any recurring subscription fees or additional in-app purchases.

What are the legendary 17-clue puzzles in Raku Sudoku?

The legendary 17-clue puzzles are the purest and most challenging grids in classic Sudoku, curated by mathematician Gordon Royle. These puzzles are known for their extreme difficulty and are a key feature for advanced players.

Can I track my progress and scores in Raku Sudoku?

Yes, Raku Sudoku includes progress tracking features and high scores. You can also compete with other players through Game Center leaderboards, adding a competitive element to your gameplay.

What devices is Raku Sudoku available on?

Raku Sudoku is currently available for iPhone. The app is designed to provide an optimal experience on Apple's mobile devices.

How often is Raku Sudoku updated?

The latest version of Raku Sudoku is 4.2.5, and it was last updated on May 4, 2026. Updates typically focus on improving performance, adding new features, or refining existing ones based on user feedback.