SUDOKU BLOX vs Zanzou
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
SUDOKU BLOX
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Build, place, and solve. SUDOKU BLOX blends the satisfaction of block puzzles with the pure logic of Sudoku. Drag number-stamped pieces: dominoes, lines, L-shapes, 2×2 squares, and more, onto 4×4, 6×6, or 9×9 grids and complete every row, column, and sub-square without repeats. HOW TO PLAY • Drag blocks onto the grid • Make sure each number appears once in every row, column, and 2×2 / 2×3 / 3×3 region (based on grid size) • Fill the entire board to solve—no empty spaces left FOUR WAYS TO PLAY • PUZZLE MODE — Conquer 100 handcrafted levels, from approachable 4×4 starters to brain-twisting 9×9 challenges. • FREE PLAY — Choose 4×4, 6×6, or 9×9 and enjoy endlessly generated puzzles for unlimited practice. • DAILY CHALLENGE — A brand-new puzzle every day! Race the clock, submit your time, and compete against players worldwide on the daily leaderboard. Come back each day to see how you rank! • VS MODE (iPad) — Split the screen and race a friend on the same puzzle. A fresh, head-to-head way to play Sudoku! WHY YOU'LL LOVE IT • A fresh twist on Sudoku — place numbered blocks instead of filling single cells • Quick sessions or deep focus — 4×4 for speed, 6×6 for flow, 9×9 for mastery • Daily Challenge with global rankings — compete for the fastest time every day • Clean, focused design that rewards logic and spatial thinking • Play offline — no internet required (except for the daily leaderboard) • Perfect for Sudoku fans, block puzzle lovers, and brain training enthusiasts • Great for beginners and advanced players alike Sharpen your strategy, fit every piece, and watch the final number click into place. Download SUDOKU BLOX and make every move count.
Zanzou
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How much can you recall after the picture disappears? Zanzou is a visual memory game: watch colored shapes, letters or digits flash one by one, then answer a question using four choices. Recall what appeared, its order, color or position. CHOOSE YOUR CHALLENGE • Levels 1–100 are free and introduce harder combinations step by step. • Position asks you to remember where elements appeared on a nine-zone board. CHANGE THE RULES Later rounds can blur a shape, show grayscale, delay the question, mute sound, alternate display time or ask you to choose an incorrect answer. Read the round's rule before answering. Check the result screen to review the questions and what was shown. FREE PLAY AND Zanzou Plus The free version includes ads. Zanzou Plus is a one-time in-app purchase that includes: • No ads. • The Master+ course, levels 101–110. • Saved detailed answer history and review. • Insights under matching conditions over 7, 30 and 90 days. • Focused three-question practice. If you previously purchased Remove Ads, you receive every Zanzou Plus feature at no extra charge. The price is shown on the in-app purchase screen. Scores describe your performance in the game. The displayed “Memory Age” is an in-game indicator calculated from accuracy and reaction time, not a measure of your actual brain age or a medical assessment. No account is needed to play. Privacy Policy: https://kazusa703.github.io/privacy.html Terms of Use: https://kazusa703.github.io/terms.html Support: https://kazusa703.github.io/support.html
Screenshots
Verdict
The clearest difference is update cadence: SUDOKU BLOX at fortnightly against Zanzou's every 3 months. On price, ads, in-app purchases 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. SUDOKU BLOX sells 1 one-off in-app purchase and Zanzou sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
SUDOKU BLOX ships an update fortnightly, Zanzou every 3 months. Both last shipped on October 24, 2026.
| Parameter | SUDOKU BLOX | Zanzou |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 3 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Leo Rivas-Micoud | atsuko imai |
In-app purchases
SUDOKU BLOX
- Remove Ads$2.99
Zanzou
- Zanzou Plus – Lifetime$3.99









