Kittygram vs Shape Sudoku
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Kittygram
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The traditional logic game “Tangram” meets the cute kitties of Kitty Blocks, forming the most adorable brain teaser out there! There are 8 degrees of difficulty with 72 levels each, for a total of 576 games!
Shape Sudoku
This logic puzzle game uses shapes instead of numbers, making it accessible for those with dyscalculia, young learners, or anyone who prefers visual patterns. Enjoy daily challenges with multiple difficulty levels, helpful tools, and full accessibility features.
- Shape-based Sudoku logic
- Daily puzzles
- Five difficulty levels
- Notes, undo, and hints
- Colorblind-friendly design
- Full VoiceOver support
- No ads or tracking
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form9 is sudoku, played with shapes. The same 9×9 logic you know — but every cell holds one of nine quiet silhouettes instead of a digit. Nothing to read, nothing to count — just pattern and logic. That makes it a natural fit for people with dyscalculia, kids still learning their numbers, language learners, and anyone who simply thinks in shapes. • A fresh daily puzzle, with a streak to keep • Five difficulties — Easy, Medium, Hard, Expert, and Master • Notes, undo, hints, and gentle error highlighting • Colorblind-friendly by design — shapes carry the meaning, not colors. Nothing to toggle. • Full VoiceOver support — every shape has a clear spoken name • Optional color-hint mode for a redundant cue • Reduce Motion respected • No ads. No tracking. Ever. form9 Pro (one-time purchase) unlocks: • Expert & Master difficulty • Statistics — best times, completions, hint-free streaks • The daily archive — replay any past puzzle Made by a solo developer who believes a good logic puzzle deserves a calm, quiet home. Terms of Use: https://form9sudoku.app/terms/ Privacy Policy: https://form9sudoku.app/privacy/
Screenshots
Verdict
The clearest difference is in-app purchases: Kittygram at none against Shape Sudoku's 1. Kittygram also leads on device support (3 vs 1) and iOS requirement (11.0 vs 17.0). Shape Sudoku's advantage is ads (none vs shown) and update cadence (every 6 days vs every 22 months). On price 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. Shape Sudoku sells 1 one-off in-app purchase. Kittygram asks for nothing beyond the download.
Kittygram ships an update every 22 months, Shape Sudoku every 6 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | Kittygram | Shape Sudoku |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| Update frequency | Every 22 months | Every 6 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 29 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Code This Lab srl | Agata Raap |
In-app purchases
Kittygram
No in-app purchases
Shape Sudoku
- form9+ Lifelong$7.99
