# Tap OChem Lite vs iORA

Tap OChem Lite and iORA both sit at 4.9 stars, but that hides the real split: 100% of iORA's written reviews are positive against 50% of Tap OChem Lite's. iORA also leads on update cadence (every 2 months vs every 11 months). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Tap OChem Lite against 5.0 for iORA. Both are backed by a comparable volume of ratings — 20 and 12 respectively. Written reviews are what separate them: 50% of Tap OChem Lite's written reviews are positive against 100% of iORA's.

Tap OChem Lite ships an update every 11 months, iORA every 2 months. The most recent releases landed on August 25, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Tap OChem Lite | iORA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (20 ratings)](https://appshunter.io/ios/app/tap-ochem-lite/id763895340/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/iora-reaction-visualizer/id1609524913/reviews)** |
| Number of ratings | **20** | 12 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 536 MB | 40 MB |
| Requires iOS | 14.5 | **14.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tap OChem, LLC](https://appshunter.io/developer/579861209) | [Daniel Ess](https://appshunter.io/developer/1609524915) |

## What reviewers say

### Tap OChem Lite

[App page](https://appshunter.io/ios/app/tap-ochem-lite/id763895340)

Visualize and understand key organic chemistry concepts, molecules, and reactions through high-quality animations. This app offers a taste of the full version, featuring common undergraduate organic chemistry topics with accompanying text descriptions and electron-pushing diagrams.

**Highlights:** Organic reaction animations, Key concept visualizations, Electron pushing diagrams, Text descriptions, Periodic table reference, Molecules in motion

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

**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 Tap OChem Lite free?

Tap OChem Lite is free to download, with no in-app purchases.

### Is iORA free?

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

### Which has better reviews, Tap OChem Lite or iORA?

iORA is rated higher. Tap OChem Lite averages 4.9 out of 5 from 20 ratings, while iORA averages 5.0 from 12 ratings.

### Do Tap OChem Lite or iORA have ads?

Neither Tap OChem Lite nor iORA shows ads.

### Which is updated more often, Tap OChem Lite or iORA?

Tap OChem Lite ships an update every 11 months, and iORA every 2 months. Most recently, Tap OChem Lite was updated on August 25, 2026 and iORA on September 7, 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.*