# BioViewer vs Atomizer AR

The clearest difference is review sentiment: Atomizer AR at 100% against BioViewer's 33%. Atomizer AR also leads on rating (4.0 vs 1.0) and device support (6 vs 3). BioViewer's advantage is in-app purchases (none vs 4). On price, update cadence 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. BioViewer asks for nothing beyond the download.

Atomizer AR holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 33% of BioViewer's written reviews are positive against 100% of Atomizer AR's.

BioViewer ships an update every 9 days, Atomizer AR every 2 weeks. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BioViewer | Atomizer AR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/bioviewer/id1593006498/reviews) | **[4.0 (3 ratings)](https://appshunter.io/ios/app/atomizer-ar-quantum-chemistry/id6449015706/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 9 MB | 137 MB |
| Requires iOS | 17.0 | **15.2** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, iPod, Mac, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Raul Monton Pinillos](https://appshunter.io/developer/1576884003) | [Wonmo Seong](https://appshunter.io/developer/1625011193) |

## What reviewers say

### BioViewer

[App page](https://appshunter.io/ios/app/bioviewer/id1593006498)

Visualize 3D molecular structures from .pdb files on iOS, iPadOS, and macOS. Features smooth rendering, drag-and-drop support, and publication-quality photo exports for detailed analysis.

**Highlights:** 3D molecular structure visualization, Supports .pdb and .xyz files, Drag and drop functionality, Photo Mode with high-quality exports, Multi-model PDB support, Optimized for ProMotion displays

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is BioViewer free?

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

### Is Atomizer AR free?

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

### Which has better reviews, BioViewer or Atomizer AR?

Atomizer AR is rated higher. BioViewer averages 1.0 out of 5 from 1 ratings, while Atomizer AR averages 4.0 from 3 ratings.

### Do BioViewer or Atomizer AR have ads?

Neither BioViewer nor Atomizer AR shows ads.

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

BioViewer ships an update every 9 days, and Atomizer AR every 2 weeks. Most recently, BioViewer was updated on October 14, 2026 and Atomizer AR on October 24, 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.*