# KAGAKU — See chemistry before formulas

> See chemistry before formulas (iPhone/iPad app by Fuji Bit LLC..)

- Source: https://appshunter.io/ios/app/kagaku/id6763080354 (this page in markdown: same URL + `.md`)
- Developer: [Fuji Bit LLC.](https://appshunter.io/developer/1874205957)
- Category: Education, Entertainment
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 24 MB
- Languages: Japanese
- Released: 2026-04-23
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/kagaku/id6763080354/reviews.md

## What is KAGAKU?

KAGAKU is a visual-first educational app for learning chemistry through direct interaction with simulations.

The 10th installment in the SUUGAKU / BUTURAKU / DENRAKU / HARAKU / NETURAKU / SEIRAKU / KORAKU / RYORAKU / RYURAKU / KAKURAKU series. This time the theme is "chemistry." Ten core topics from high-school to introductory-university level, all delivered through beautiful animations and hands-on manipulation.

[10 Features]

▶ Periodic Table
All 118 elements color-coded by category. Tap any element to see its atomic number, mass, electron configuration, and electronegativity.

▶ Atom Structure
Animated Bohr model. Watch electrons orbit quantized shells for 13 representative elements (H through Cu).

▶ 3D Molecules
12 molecules rendered as ball-and-stick models: water, methane, ammonia, CO₂, ethanol, benzene, ethylene, acetylene, glucose, and more. Drag to rotate, or let them auto-spin.

▶ Chemical Bonds
Visualize ionic, covalent, and metallic bonding. Electronegativity difference auto-classifies the bond type; animations highlight the distinct electron behavior of each.

▶ Equation Balancer
Six reactions: methane combustion, iron oxidation, water synthesis, Haber process, photosynthesis, and neutralization. One tap reveals balanced coefficients plus an atom-count check for each element.

▶ Flame Test
Li, Na, K, Ca, Sr, Ba, Cu — watch each element burn with its signature color above a Bunsen burner, alongside the emission spectrum with wavelength labels (nm).

▶ Acid-Base / pH
Real-time strong-acid / strong-base titration curve. Switch between BTB, phenolphthalein, and methyl orange indicators and see color change with pH.

▶ Electrochemistry
Animated Daniell cell. Electrons flow through the external circuit, Zn²⁺ and Cu²⁺ ions drift in the solutions, EMF 1.10 V is displayed live.

▶ Gas Laws
PV=nRT particle simulation. Freely change temperature, volume, and particle count and watch Brownian motion drive wall collisions — the source of pressure.

▶ Organic Chemistry
A visual field guide to alkanes, alkenes, alkynes, aromatics, and functional groups (-OH, -NH₂, carbonyl). Eight representative molecules you can rotate in 3D while learning their properties.

[Features]
• Formula reference sheet on every screen
• Live values and equations
• Japanese / English support
• Dark mode / Light mode
• Clean, intuitive UI
• Only a small banner ad at the bottom

[Recommended for]
• Students studying high-school chemistry
• Anyone wanting to intuitively understand reactions and molecular structure
• Teachers looking for interactive teaching materials
• Anyone rediscovering the beauty of chemistry


## Version history (last 2 releases)

### 1.1 — 2026-05-15

We have fixed the bug.

### 1.0 — 2026-04-23

No release notes.

## More apps by Fuji Bit LLC.

- [SUUGAKU](https://appshunter.io/ios/app/suugaku/id6759102221)
- [BUTURAKU](https://appshunter.io/ios/app/buturaku/id6759213255)
- [PAKEDOU](https://appshunter.io/ios/app/pakedou/id6759820254)
- [HARAKU](https://appshunter.io/ios/app/haraku/id6759958253)
- [KORAKU](https://appshunter.io/ios/app/koraku/id6760215571)
- [NETURAKU](https://appshunter.io/ios/app/neturaku/id6760246813)

All apps by Fuji Bit LLC.: https://appshunter.io/developer/1874205957

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-17.*