広告0・優れたUI ・簡単操作
Response from developer
湯豆腐4様 うれしいご感想をありがとうございます。広告を入れず、静かに集中して遊べることを何より大切に作っているので、UIや操作性の点を挙げていただけてとても励みになります。 これからも少しずつ良くしていきます。どうぞよろしくお願いいたします。

A calm logic puzzle game where you divide grids into rectangles, each containing a number equal to its area. Solve daily puzzles, collect stamps, and compete with friends. Offers infinite puzzles and customizable themes for a relaxing experience.
1.6.1
August 17, 2026
Bug fixes. PREVIOUS RELEASE Win 10 Medium puzzles and a little gift appears: 3 free Hard boards, on us. The big 10×10, deeper deductions, no strings attached. Plus a fresh coat of polish throughout.
More$7.99
Kaku Pro
Unlock all sizes, difficulties, hints and styles.
湯豆腐4様 うれしいご感想をありがとうございます。広告を入れず、静かに集中して遊べることを何より大切に作っているので、UIや操作性の点を挙げていただけてとても励みになります。 これからも少しずつ良くしていきます。どうぞよろしくお願いいたします。
Kaku is a logic puzzle game where players divide a grid into rectangles. Each rectangle must contain a single number that matches its area. The game emphasizes pure deduction with no reliance on luck.
Yes, Kaku features a 'Puzzle of the Day' that players can solve to build a daily streak and track their best times. These daily puzzles are collected as stamps in a monthly album.
Kaku supports playing with friends through timed challenges to beat your best time or live, round-by-round races using a shared code. It also offers 'own-pace' matches for asynchronous play.
Yes, Kaku is fully playable offline, making it convenient for playing anywhere without an internet connection.
Beyond the daily puzzles, Kaku generates infinite puzzles across five board sizes and five difficulty tiers, ranging from easy warmups to expert challenges.
No, Kaku is designed to be relaxing and does not contain any advertisements. The game focuses on a clean, distraction-free experience.
Kaku is available on iPhone and iPad, supporting progress syncing across devices with iCloud.
The latest version of Kaku, 1.6, was last updated on August 10, 2026.