# iORA vs Atomizer AR

The clearest difference is rating: iORA at 5.0 against Atomizer AR's 4.0. iORA also leads on in-app purchases (none vs 4) and ratings volume (12 vs 3). Atomizer AR's advantage is update cadence (every 4 weeks vs every 2 months). On price, review sentiment, ads and device support there is nothing between them.

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

iORA holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 12 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

iORA ships an update every 2 months, Atomizer AR every 4 weeks. The most recent releases landed on September 7, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | iORA | Atomizer AR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (12 ratings)](https://appshunter.io/ios/app/iora-reaction-visualizer/id1609524913/reviews)** | [4.0 (3 ratings)](https://appshunter.io/ios/app/atomizer-ar-quantum-chemistry/id6449015706/reviews) |
| Number of ratings | **12** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 40 MB | 132 MB |
| Requires iOS | **14.3** | 15.2 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Ess](https://appshunter.io/developer/1609524915) | [Wonmo Seong](https://appshunter.io/developer/1625011193) |

## What reviewers say

### iORA

[App page](https://appshunter.io/ios/app/iora-reaction-visualizer/id1609524913)

Visualize chemical reactions in 3D using quantum-mechanical simulations. This free, interactive application makes complex chemistry concepts accessible and engaging for learners.

**Highlights:** 3D chemical reaction visualization, Quantum-mechanical simulations, Interactive learning, Easy to use interface, Educational tool

**Features:** macOS Compatibility

**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:** 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 |


## Frequently asked questions

### Is iORA free?

iORA 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, iORA or Atomizer AR?

iORA is rated higher. iORA averages 5.0 out of 5 from 12 ratings, while Atomizer AR averages 4.0 from 3 ratings.

### Do iORA or Atomizer AR have ads?

Neither iORA nor Atomizer AR shows ads.

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

iORA ships an update every 2 months, and Atomizer AR every 4 weeks. Most recently, iORA was updated on September 7, 2026 and Atomizer AR on July 5, 2026.

---

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