Futoshiki 101 vs Shikaku
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Futoshiki 101
Challenge your logic with over 100 Sudoku-style number puzzles. Arrange numbers 1-5 in rows and columns while adhering to greater-than/less-than constraints between adjacent numbers. Features pencil mode for notes and mistake highlighting.
- 101 increasingly difficult puzzles
- Sudoku-style number arrangement
- Greater-than/less-than constraints
- Pencil mode for notes
- Mistake highlighting
- 5 difficulty levels
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Prepare yourself for Futoshiki fever as you make your way through 101 increasingly difficult Sudoku-style number puzzles in one great app. The aim of the game is simple: drag and drop the numbers onto the grid so that each row and column contains the numbers 1 to 5, and numbers either side of a less-than and greater-than symbol are bigger or smaller than their neighbour, as indicated. Easy, right? You can plan ahead using pencil mode to make notes, and its easy to spot mistakes because the app will highlight them for you. So, with 5 difficultly levels from Tranquil to Terrifying, only one question remains: can you solve them all? Download Futoshiki 101 today!
Shikaku
Engage in a minimalist logic puzzle game where you divide a grid into rectangular pieces. Each piece must contain a number representing its total area. Enjoy daily challenges, endless modes, and customizable themes.
- Grid division logic puzzles
- Daily puzzle chapters
- Infinite puzzle generation
- Customizable themes
- XP system for mastery
- Ad-free experience
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Master the Geometry of Logic. Step into the world of Shikaku (also known as Rectangles), a classic Japanese logic puzzle reimagined for the modern era. Shikaku is a minimalist experience designed for those who find beauty in structure and peace in problem-solving. THE GOAL Divide the grid into rectangular and square pieces such that each piece contains exactly one number. That number must represent the total area (the number of cells) of that rectangle. It’s simple to learn, but mastery requires a deep understanding of logical geometry. WHY PLAY SHIKAKU? • Handcrafted Minimalism: A clean, distraction-free interface that lets you focus entirely on the puzzle at hand. • Daily Chapters: Every day brings a new "Chapter" with three stages of escalating difficulty. Start your morning with a light challenge and end your day with a masterclass in logic. • Infinite Endless Mode: Never run out of puzzles. Generate grids of various sizes—from quick 4x4 warm-ups to daunting large-scale grids. • Personalize Your Experience: Express yourself with over 16 vibrant themes, including Tokyo Neon, Sakura, Botanical, and Midnight. • Mastery XP System: Prove your skill. Turn off assistive features to earn 1.5x XP and climb the ranks of logic masters. • Zero Distractions: No ads. No interruptions. Just you and the grid. Whether you’re a Sudoku veteran or a casual puzzle lover, Shikaku offers a meditative yet mentally stimulating escape. Handcrafted with pride by De Groot Studio.
Screenshots
Verdict
The clearest difference is review sentiment: Shikaku at 76% against Futoshiki 101's 0%. Shikaku also leads on rating (4.4 vs 1.0) and in-app purchases (none vs 1). Futoshiki 101's advantage is iOS requirement (9.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Futoshiki 101 sells 1 one-off in-app purchase. Shikaku asks for nothing beyond the download.
Shikaku holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Shikaku has 16 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Futoshiki 101's written reviews are positive against 76% of Shikaku's.
Futoshiki 101 ships an update monthly, Shikaku every 3 weeks. The most recent releases landed on October 14, 2026 and October 21, 2026 respectively.
| Parameter | Futoshiki 101 | Shikaku |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (3 ratings) | 4.4 (16 ratings) — better |
| Positive reviews | 0.0% of reviews | 76.5% of reviews — better |
| Number of ratings | 3 | 16 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 8 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Mesmotronic | BRIDGE DIGITAL EUROPE LIMITED |
Customer experience
Futoshiki 101
Shikaku
In-app purchases
Futoshiki 101
- Remove adverts$1.99
Shikaku
No in-app purchases
Questions
Is Futoshiki 101 free?
Is Shikaku free?
Which has better reviews, Futoshiki 101 or Shikaku?
Do Futoshiki 101 or Shikaku have ads?
Which is updated more often, Futoshiki 101 or Shikaku?
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