# Atomizer AR vs Pawtopia

The clearest difference is in-app purchases: Pawtopia at none against Atomizer AR's 4. Pawtopia also leads on update cadence (daily vs every 2 weeks). Atomizer AR's advantage is device support (6 vs 2) and iOS requirement (15.2 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Atomizer AR sells 4 in-app purchases, starting at $1.99 per month. Pawtopia asks for nothing beyond the download.

Atomizer AR ships an update every 2 weeks, Pawtopia daily. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Atomizer AR | Pawtopia |
| --- | --- | --- |
| 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 | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 137 MB | 193 MB |
| Requires iOS | **15.2** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wonmo Seong](https://appshunter.io/developer/1625011193) | [Kelvin .](https://appshunter.io/developer/1757298626) |

## 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:** Apple Watch app

**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 |


### Pawtopia

[App page](https://appshunter.io/ios/app/pawtopia/id6636525675)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Atomizer AR free?

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

### Is Pawtopia free?

Pawtopia is free to download, with no in-app purchases.

### Do Atomizer AR or Pawtopia have ads?

Neither Atomizer AR nor Pawtopia shows ads.

### Which is updated more often, Atomizer AR or Pawtopia?

Atomizer AR ships an update every 2 weeks, and Pawtopia daily. Most recently, Atomizer AR was updated on October 24, 2026 and Pawtopia on October 27, 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.*