# Kaku - Shikaku Puzzle — Calm daily brain games > Logic puzzle game dividing grids into numbered rectangles based on area. (iPhone/iPad app by Gonzalo Fuentes.) - Source: https://appshunter.io/ios/app/kaku-shikaku-puzzle/id6778500634 (this page in markdown: same URL + `.md`) - Developer: [Gonzalo Fuentes](https://appshunter.io/developer/1651276416) - Category: Games, Entertainment, Board, Puzzle - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 26.0 · 61 MB - Languages: American English, French (France), German (Germany), Italian, Japanese, Brazilian Portuguese, European Spanish - Released: 2026-06-15 - Data updated: 2026-09-08 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/kaku-shikaku-puzzle/id6778500634/reviews.md ## What is Kaku? Kaku is a calm, elegant logic puzzle. Divide the grid into rectangles, where every rectangle holds exactly one number equal to its area. One solution, pure deduction, no luck. A NEW PUZZLE EVERY DAY Solve the Puzzle of the Day, build a daily streak, and track your best times. Your progress syncs across your devices with iCloud. COLLECT YOUR DAILIES Every Daily you solve becomes a collectible stamp in a monthly album. Finish in the day's top three and your stamp is minted in gold, silver or bronze foil. Miss a day and its slot stays empty for good. PLAY WITH FRIENDS Challenge a friend to beat your time, or race live matches round by round with a shared code. Prefer no pressure? Own-pace matches let everyone play their rounds whenever they like. INFINITE PUZZLES Generate endless puzzles across five board sizes and five difficulty tiers, from gentle warmups to expert brain benders. Every puzzle is guaranteed to have a single, logical solution. PLAY YOUR WAY - Draw rectangles with a simple drag - Undo, hints, and assists you control - Soft haptics and sound you can turn off anytime - Fully playable offline MAKE IT YOURS Seven hand-tuned themes retone the whole board, in light and dark, each with its own matching app icon. DESIGNED TO RELAX Warm paper tones, gentle glass surfaces, and a quiet, focused layout. No countdown forcing you, no clutter, no ads getting in the way. Just you and the grid. COMPETE AND ACHIEVE Climb the Game Center leaderboards for daily times, tiers and longest streaks, and unlock achievements as you go. Whether you have two minutes or twenty, Kaku is a thoughtful way to sharpen your mind and slow down. Privacy Policy: https://playkaku.com/privacy-policy Terms of Service: https://playkaku.com/terms-of-service ## Key features - Daily puzzles with collectible stamps - Multiplayer and asynchronous matches - Infinite puzzles with adjustable difficulty - Customizable themes and app icons - Offline play supported - Game Center leaderboards and achievements ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Kaku Pro | $7.99 | one-time | | Kaku Pro | Free | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/kaku-shikaku-puzzle/id6778500634/reviews.md ### 5/5 — 広告0・優れたUI ・簡単操作 *2026-08-07* 楽しい **Developer response:** 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。 ## Frequently asked questions about Kaku ### What is Kaku's core gameplay? 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. ### Does Kaku offer daily challenges? 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. ### Can I play Kaku with friends? 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. ### Is Kaku playable offline? Yes, Kaku is fully playable offline, making it convenient for playing anywhere without an internet connection. ### How many puzzles does Kaku offer? Beyond the daily puzzles, Kaku generates infinite puzzles across five board sizes and five difficulty tiers, ranging from easy warmups to expert challenges. ### Does Kaku have ads? No, Kaku is designed to be relaxing and does not contain any advertisements. The game focuses on a clean, distraction-free experience. ### What platforms is Kaku available on? Kaku is available on iPhone and iPad, supporting progress syncing across devices with iCloud. ### When was Kaku last updated? The latest version of Kaku, 1.6, was last updated on August 10, 2026. ## Version history (last 5 releases) ### 1.6.2 — 2026-09-04 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. ### 1.6.1 — 2026-08-17 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. ### 1.6 — 2026-08-10 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. ### 1.5.3 — 2026-08-07 Bug fixes. PREVIOUS RELEASE KAKU 1.5: SEE HOW A ROUND WAS SOLVED See how a round was solved - Every round played from now on is saved, so it can be watched back later. - Watch a round you solved play back move by move. Your own runs are always free. - Replay a friend's round, or follow their board live while they are still solving it. - Play every board of a round side by side and see who was ahead at any moment, and when each of you crossed the line. A calmer board - A 1 can only ever be its own square, so the board arrives with them already drawn. Nothing to work out, and nothing to tap. - Switch it on in Settings and a number steps back once it has an area of its own, so the ones still to go stand out. - Give up on a level and the board solves itself in front of you. The squares you got right stay put, so you can see exactly what you missed. A new way to compete - Every level now ranks your average time too, not just your single best run. - Flawless Expert can be earned again: an Expert with no help, and nothing redrawn. - Squashed bugs and polished things across the app. ### 1.5.2 — 2026-08-03 Bug fixes. PREVIOUS RELEASE KAKU 1.5: SEE HOW A ROUND WAS SOLVED See how a round was solved - Every round played from now on is saved, so it can be watched back later. - Watch a round you solved play back move by move. Your own runs are always free. - Replay a friend's round, or follow their board live while they are still solving it. - Play every board of a round side by side and see who was ahead at any moment, and when each of you crossed the line. A calmer board - A 1 can only ever be its own square, so the board arrives with them already drawn. Nothing to work out, and nothing to tap. - Switch it on in Settings and a number steps back once it has an area of its own, so the ones still to go stand out. - Give up on a level and the board solves itself in front of you. The squares you got right stay put, so you can see exactly what you missed. A new way to compete - Every level now ranks your average time too, not just your single best run. - Flawless Expert can be earned again: an Expert with no help, and nothing redrawn. - Squashed bugs and polished things across the app. ## Apps similar to Kaku | App | Rating | Price | Category | | --- | --- | --- | --- | | [Card Out - Card Sort Puzzle](https://appshunter.io/ios/app/card-out-card-sort-puzzle/id6781720696) | — | Free | Games | | [Block Puzzle Fill](https://appshunter.io/ios/app/block-puzzle-fill/id6763531367) | — | Free | Games | | [Cocktail Loop](https://appshunter.io/ios/app/cocktail-loop/id6764773646) | — | Free | Games | | [Traffic Jam Sort](https://appshunter.io/ios/app/traffic-jam-sort/id6774039030) | — | Free | Games | | [PipeEmAll](https://appshunter.io/ios/app/pipeemall/id6757950856) | — | Free | Games | | [Cat Blast - Block Puzzle](https://appshunter.io/ios/app/cat-blast-block-puzzle/id6768389499) | 5.0 (1) | Free | Games | ## More apps by Gonzalo Fuentes - [Metrociego](https://appshunter.io/ios/app/metrociego/id1231945684) - [Leisurist: Film, Show, Books](https://appshunter.io/ios/app/leisurist-film-show-books/id6684029094) - [Quizquake](https://appshunter.io/ios/app/quizquake/id6743756530) - [Greenie: Plant Identifier AI](https://appshunter.io/ios/app/greenie-plant-identifier-ai/id6746816013) - [Bird Identifier: BirdScout](https://appshunter.io/ios/app/bird-identifier-birdscout/id6748635214) All apps by Gonzalo Fuentes: https://appshunter.io/developer/1651276416 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*