# Atomizer AR vs Unit Gacha !

The clearest difference is iOS requirement: Unit Gacha ! at 13.0 against Atomizer AR's 15.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Atomizer AR sells 4 in-app purchases, starting at $1.99 per month and Unit Gacha ! sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Atomizer AR ships an update every 4 weeks, Unit Gacha ! every 3 weeks. The most recent releases landed on July 5, 2026 and June 19, 2026 respectively.

## The numbers

| Metric | Atomizer AR | Unit Gacha ! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/atomizer-ar-quantum-chemistry/id6449015706/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 132 MB | 47 MB |
| Requires iOS | 15.2 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wonmo Seong](https://appshunter.io/developer/1625011193) | [Shunsuke Nakamura](https://appshunter.io/developer/1828229182) |

## What reviewers say

### Atomizer AR

[App page](https://appshunter.io/ios/app/atomizer-ar-quantum-chemistry/id6449015706)

Explore the quantum world with interactive 3D models of atoms and molecules in augmented reality. Visualize atomic and molecular orbitals, and sketch organic compounds to instantly generate their nomenclature.

**Highlights:** 3D atomic and molecular orbital visualization, Augmented reality integration, Hartree-Fock computational method for MOs, Sketch organic compounds, Automatic SMILES and IUPAC nomenclature generation

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Californium Pass | $1.99 | per month |
| Californium Pass | $2.99 | per month |
| Einsteinium Pass | $3.99 | per year |
| Einsteinium Pass | $6.99 | per month |


### Unit Gacha !

[App page](https://appshunter.io/ios/app/unit-gacha/id6756411322)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all mechanics problems | $5.99 | one-time |
| Unlock all electromagnetic problems | $5.99 | one-time |


## Frequently asked questions

### Is Atomizer AR free?

Atomizer AR is free to download, with in-app purchases available.

### Is Unit Gacha ! free?

Unit Gacha ! is free to download, with in-app purchases available.

### Do Atomizer AR or Unit Gacha ! have ads?

Neither Atomizer AR nor Unit Gacha ! shows ads.

### Which is updated more often, Atomizer AR or Unit Gacha !?

Atomizer AR ships an update every 4 weeks, and Unit Gacha ! every 3 weeks. Most recently, Atomizer AR was updated on July 5, 2026 and Unit Gacha ! on June 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*