# Crystal Lattice — High school level knowledge

> Interactive 3D visualization and calculation tool for crystal lattice structures. (iPhone/iPad app by Yasuyoshi Ota.)

- Source: https://appshunter.io/ios/app/crystal-lattice/id6466785450 (this page in markdown: same URL + `.md`)
- Developer: [Yasuyoshi Ota](https://appshunter.io/developer/1500357652)
- Category: Education, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.6 · 9 MB
- Languages: American English, Japanese
- Released: 2023-10-01
- Data updated: 2026-08-31
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/crystal-lattice/id6466785450/reviews.md

## What is Crystal Lattice?

The iOS app "Crystal Lattice" contains basic knowledge (university entrance exam level) of crystal lattices.
When learning about crystal lattices, you may find it difficult to understand the 3D structure, and this app will come in handy at such times.
The iOS app "Crystal Lattice" allows you to scale and rotate the 3D displayed crystal lattice. Promote 3D understanding by looking at things from various angles.


For metal crystals and covalent crystals, this app explains how to calculate the coordination number, number of atoms in the lattice, atomic radius, and atomic packing factor.
For ionic crystals, this app explains how to calculate the coordination number, number of ions in the lattice, ionic radius, and limiting radius ratio.

Regarding metal crystals, this app explains body-centered cubic lattice, face-centered cubic lattice, and hexagonal close-packed structure.
Regarding ionic crystals, this app explains NaCl type, CsCl type, ZnS (zincblende) type, and CaF2 (fluorite) type.
Regarding covalent crystals, this app explains Diamond type.

[details]
https://app.brain-workout.org/crystallattice-e/

## Key features

- Interactive 3D crystal lattice models
- Scale and rotate structures
- Calculate coordination number
- Calculate number of atoms/ions
- Atomic packing factor calculation
- Explanations for various crystal types

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/crystal-lattice/id6466785450/reviews.md

### 5/5 — 役に立ちました

*2024-05-29*

学校の先生に勧められてインストールしたのですが、とてもわかりやすかったです。

## Frequently asked questions about Crystal Lattice

### What is Crystal Lattice?

Crystal Lattice is an educational iOS app designed to help users understand the 3D structures of crystal lattices. It allows for interactive manipulation of 3D models and provides detailed explanations for calculating various properties.

### What types of crystal lattices does Crystal Lattice cover?

Crystal Lattice covers metal crystals (body-centered cubic, face-centered cubic, hexagonal close-packed), ionic crystals (NaCl, CsCl, ZnS, CaF2 types), and covalent crystals (Diamond type).

### Can I calculate properties of crystal lattices with Crystal Lattice?

Yes, the app explains how to calculate the coordination number, number of atoms/ions in the lattice, atomic radius, and atomic packing factor for different crystal types.

### Is Crystal Lattice suitable for beginners?

The app is designed for high school level knowledge and university entrance exam levels, making it suitable for students beginning their study of crystal lattices and needing help with 3D visualization.

### Does Crystal Lattice have ads?

Yes, Crystal Lattice contains advertisements to support its development and distribution as a free application.

### What devices is Crystal Lattice compatible with?

Crystal Lattice is available for iPhone, iPad, and iPod touch devices running iOS.

### How often is Crystal Lattice updated?

The app was last updated on August 22, 2026, with version 1.0.5. Specific update frequency is not detailed, but it is actively maintained.

### What is the age rating for Crystal Lattice?

Crystal Lattice has an age rating of 4+, indicating it is suitable for a wide audience, though its educational content is targeted at older students.

## Version history (last 5 releases)

### 1.0.5 — 2026-08-22

performance improvements

### 1.0.4 — 2025-12-19

performance improvements

### 1.0.3 — 2025-09-28

performance improvements

### 1.0.2 — 2024-12-31

performance improvements

### 1.0.1 — 2024-02-19

performance improvements

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## More apps by Yasuyoshi Ota

- [Kinetic Visual Acuity](https://appshunter.io/ios/app/kinetic-visual-acuity/id315045189)
- [Kinetic Visual Acuity Lite](https://appshunter.io/ios/app/kinetic-visual-acuity-lite/id319026009)
- [Amida Mikan](https://appshunter.io/ios/app/amida-mikan/id350563115)
- [Try Hairstyle Lite](https://appshunter.io/ios/app/try-hairstyle-lite/id350729683)
- [Amida Mikann](https://appshunter.io/ios/app/amida-mikann/id358691639)
- [2 Digit Multiplication](https://appshunter.io/ios/app/2-digit-multiplication/id395133470)

All apps by Yasuyoshi Ota: https://appshunter.io/developer/1500357652

## Related topics

[lattice training](https://appshunter.io/ios/topics/lattice-training)

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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 2026-08-31.*