Comparison

Block Harmonics vs Gem Puzzle Island

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Block Harmonics

Features
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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 8Ɨ8 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. — Highlights — • 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. Free to play. — How to Play — 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. — Tips — • 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. — About Ads — Block Harmonics is free to play and supported by ads — a banner at the bottom and an optional, skippable ad after game over. — Privacy — Scores and session data stay on your device. Google AdMob may collect anonymized information to serve ads. Compose your own little harmonics of color and shape.

About

Gem Puzzle Island

Features
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Gem Puzzle Island is a relaxing puzzle escape where sparkling gems, peaceful scenery, and cozy gameplay come together. Take a quiet break on a beautiful island and enjoy four different puzzle modes designed for calm, satisfying play. Start with familiar block-style puzzles, explore new ways to clear the board, and unlock more modes as you return to the island. Play at your own pace with soothing music and gentle visuals. Choose the atmosphere that fits your mood — bright day, warm sunset, peaceful night, or a festive fireworks sky. You can also customize the look of your gems with different gem skins for a fresh and colorful experience. Features: • Four relaxing puzzle modes • Classic block-style gameplay • A collapse-style mini game mode • Beautiful gem skins to choose from • Day, sunset, night, and fireworks atmospheres • Peaceful music made for short breaks and quiet play • Simple controls, clean visuals, and a cozy island mood Whether you want a quick puzzle break or a calm place to unwind, Gem Puzzle Island gives you a gentle puzzle getaway whenever you need it.

Screenshots

Block Harmonics3 screens
Gem Puzzle Island4 screens

Verdict

The call

The clearest difference is in-app purchases: Block Harmonics at none against Gem Puzzle Island's 8. Block Harmonics also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support 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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Gem Puzzle Island sells 8 one-off in-app purchases. Block Harmonics asks for nothing beyond the download.

UpkeepUpdate frequency

Block Harmonics ships an update every 9 days, Gem Puzzle Island weekly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard2 real differences Ā· 4 level
Block Harmonics versus Gem Puzzle Island: the parameters behind the verdict, then further details
ParameterBlock HarmonicsGem Puzzle Island
PriceFreeFree
Update frequencyEvery 9 daysWeekly — better
AdsYesYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size31 MB118 MB
Age rating4+4+
DeveloperIkuya TerasakaAriya Studio Company Limited

In-app purchases

None

Block Harmonics

No in-app purchases

8 purchases

Gem Puzzle Island

One-time8
  • Small Coins$0.99
  • Starter Helper Pack$0.99
  • Gem Skin Pack$0.99
Show 5 more
  • Medium Coins$1.99
  • All Themes Pack$1.99
  • Large Coins$2.99
  • Premium Bundle$2.99
  • Mega Coins$3.99

Questions

Is Block Harmonics free?
Block Harmonics is free to download, with no in-app purchases.
Is Gem Puzzle Island free?
Gem Puzzle Island is free to download, with in-app purchases available.
Do Block Harmonics or Gem Puzzle Island have ads?
Both Block Harmonics and Gem Puzzle Island show ads.
Which is updated more often, Block Harmonics or Gem Puzzle Island?
Block Harmonics ships an update every 9 days, and Gem Puzzle Island weekly. Most recently, Block Harmonics was updated on October 30, 2026 and Gem Puzzle Island on October 28, 2026.

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