# iORA vs Spectromaster

The clearest difference is in-app purchases: iORA at none against Spectromaster's 1. iORA also leads on iOS requirement (14.3 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Spectromaster sells 1 in-app purchase, starting at $2.99 per month. iORA asks for nothing beyond the download.

## The numbers

| Metric | iORA | Spectromaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (12 ratings)](https://appshunter.io/ios/app/iora-reaction-visualizer/id1609524913/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 40 MB | 11 MB |
| Requires iOS | **14.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Ess](https://appshunter.io/developer/1609524915) | [Hyuk-Yong Kwon](https://appshunter.io/developer/6796681340) |

## 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


### Spectromaster

[App page](https://appshunter.io/ios/app/spectromaster/id6804377663)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spectromaster Pro | $2.99 | per month |


## Frequently asked questions

### Is iORA free?

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

### Is Spectromaster free?

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

### Do iORA or Spectromaster have ads?

Neither iORA nor Spectromaster shows ads.

---

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