BUNKAI vs VoxelReconstruct
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
BUNKAI
A brain-training puzzle game where players break down numbers until they reach one. It uses prime factorization to defeat monsters, making learning math fun and engaging. Enjoy a simple yet addictive experience that boosts your calculation skills.
- Number decomposition puzzles
- Prime factorization mechanics
- Monster-battling gameplay
- Calculation skill training
- Simple tap controls
- Addictive brain training
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1になるまで数字を分解しよう! ゲームしながら楽しく計算力が鍛えられる! 「BUNKAI」はシンプルでハマり度120%の脳トレゲームです。 操作方法はタップするだけ。 遊べば遊ぶほど脳が活性化されます。 素因数分解を駆使してモンスターをぶっ飛ばせ!
VoxelReconstruct
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VoxelReconstruct is a touch-first 3D molecular-assembly puzzle game. You pick atoms from the periodic table and bond them into molecules and crystals following real chemistry — every element has its own valence (the number of free radicals it can bond) and atomic radius, attraction and repulsion derive from size, and a curated bonding whitelist decides which atoms may join. Grow a molecule past a level's threshold and you win. It's a learn-as-you-play chemistry game, made for students building an intuition for stereochemical formulas. [How it plays] ‧ Touch-first: one "Mode" button switches between Navigate (drag to rotate, pinch to zoom) and Place (tap a free-bond dot to drop an atom) ‧ You place the first atom: an empty molecule grows from the moment you tap — nothing is seeded ‧ You choose the element AND the bond order: single –, double =, triple ≡, and coordinate → (a lone pair bonding into an empty orbital) ‧ Real chemistry: VSEPR geometry, ionic vs covalent bonds, multi-bonds that merge radicals so N≡N and O=C=O form naturally ‧ Advanced bonding: coordinate bonds build NH₄⁺, H₃O⁺ and metal complexes, with formal charge / oxidation state shown (e.g. [Cu(NH₃)₄]²⁺ = +2) ‧ Ring closure: two open atoms that come close can bond directly to close a ring (cyclohexane, etc.) ‧ The full periodic table (118 elements), each with its valence, radius and Jmol CPK colour ‧ Curated levels: each level fixes which pairs may bond and mixes in "trap" elements that won't stick — a wrong element is a mistake, three mistakes fail the level; some levels also require a variety of different elements ‧ Full-Table Sandbox: a free-play mode with every element, no mistakes and no failing ‧ Instant English / Traditional-Chinese switch, haptic feedback, progress saved on device (SwiftData) [Pricing] ‧ Free: the complete story campaign, fully playable ‧ Pro (one-time purchase): unlocks only the Full-Table Sandbox — build freely with the whole table ‧ Players who bought the earlier paid version are upgraded to Pro for free automatically [Who it's for] ‧ Chemistry students and enthusiasts building intuition for valence, bonding and 3D formulas ‧ Players who enjoy puzzle and building games ‧ Anyone who wants a gentle, hands-on take on atomic and molecular science [Privacy & Security] ‧ Game progress stays only on your device — nothing is uploaded to the developer ‧ No personal data collection, no ads, no tracking ‧ Built entirely with Apple frameworks, independently by Intoxicated Child Studio Reconstruct your molecules among the atoms
Screenshots
Verdict
The clearest difference is ads: VoxelReconstruct at none against BUNKAI's shown. BUNKAI's advantage is update cadence (every 2 months vs every 8 months) and iOS requirement (11.0 vs 17.0). On price, 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. Neither carries in-app purchases, so what you see is what you pay.
BUNKAI ships an update every 2 months, VoxelReconstruct every 8 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | BUNKAI | VoxelReconstruct |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 12.5% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months — better | Every 8 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 114 MB | 17 MB |
| Age rating | 17+ | 4+ |
| Developer | ZERONE | Kuo-Tsun Huang |
In-app purchases
BUNKAI
No in-app purchases
VoxelReconstruct
No in-app purchases









