# Chemistry Model Kit vs iORA

The clearest difference is update cadence: Chemistry Model Kit at every 4 days against iORA's every 2 months. Chemistry Model Kit also leads on iOS requirement (8.0 vs 14.3). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Chemistry Model Kit ships an update every 4 days, iORA every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Chemistry Model Kit | iORA |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 months |
| Monetization | — | Free |
| Size | 154 MB | 40 MB |
| Requires iOS | **8.0** | 14.3 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cheryl Montgomery](https://appshunter.io/developer/611176285) | [Daniel Ess](https://appshunter.io/developer/1609524915) |

## What reviewers say

### Chemistry Model Kit

[App page](https://appshunter.io/ios/app/chemistry-model-kit-vsepr-3d/id1165464881)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Chemistry Model Kit free?

Chemistry Model Kit is free to download, with no in-app purchases.

### Is iORA free?

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

### Do Chemistry Model Kit or iORA have ads?

Neither Chemistry Model Kit nor iORA shows ads.

### Which is updated more often, Chemistry Model Kit or iORA?

Chemistry Model Kit ships an update every 4 days, and iORA every 2 months. Most recently, Chemistry Model Kit was updated on November 2, 2026 and iORA on November 3, 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.*