Block Harmonics vs CatBlock
Price, ratings, monetisation and update history for both games, side by side ā with what reviewers say about each.
Block Harmonics
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With every placement, a gentle tone layers into a small harmonics. Block Harmonics is a clean, endlessly replayable placement puzzle: drop varied shapes onto an 8Ć8 board and clear filled rows and columns. Difficulty adapts gradually to your play. Build combos and simultaneous clears to push your score, and aim for a new personal best. ā Highlights ā ⢠Variety of pieces: from monomino to pentomino/hexomino. ⢠Smooth controls: tap to pick, drag to place, with helpful snapping. ⢠Scoring that rewards skill: combo chains, row/column simultaneous clears, perfect fits, area wipes, large-piece bonuses. ⢠Sound that feels good: tone and stereo change by color and position; combos sparkle with chords. Ambient BGM supports focus or relaxation. ⢠Settings: toggle SFX, 4-step volume, display handle name. ⢠Offline-friendly: scores are saved on device. No ads, no purchases. ā How to Play ā 1) Choose from three pieces and place them on the board. 2) Fill any row or column to clear it and score points. 3) Clear repeatedly to raise your combo multiplier. The game ends when no placement is possible. ā Tips ā ⢠Plan for multiple rows/columns at once. ⢠Aim for perfect fits to earn a bonus. ⢠Use large pieces and area clears to spike your score. Privacy: scores and session data stay on your device and are not transmitted. Compose your own little harmonics of color and shape.
CatBlock
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CatBlock is a relaxing and easy-to-play block puzzle game with a cute cat theme. Place blocks on an 8x8 board, clear rows and columns, and keep the board open as long as possible. The controls are simple, but smart placement and planning are the key to getting a high score. Features: ⢠Simple drag-and-drop gameplay ⢠Cute cat-themed visual style ⢠Easy to learn, satisfying to master ⢠Relaxing puzzle experience ⢠Great for short play sessions If you enjoy block puzzles, cozy games, and cute cats, CatBlock is a fun game to pick up anytime.
Screenshots
Verdict
The clearest difference is ads: CatBlock at none against Block Harmonics's shown. Block Harmonics's advantage is update cadence (weekly vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Block Harmonics ships an update weekly, CatBlock every 3 weeks. Both last shipped on September 10, 2026.
| Parameter | Block Harmonics | CatBlock |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly ā better | Every 3 weeks |
| Ads | Yes | No ā better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 ā better |
| Further details ā not scored | ||
| Size | 33 MB | 105 MB |
| Age rating | 4+ | 4+ |
| Developer | Ikuya Terasaka | kouryou cho |
In-app purchases
Block Harmonics
No in-app purchases
CatBlock
No in-app purchases
Questions
Is Block Harmonics free?
Is CatBlock free?
Do Block Harmonics or CatBlock have ads?
Which is updated more often, Block Harmonics or CatBlock?
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