# iORA vs Organic Reactions Tutor

The clearest difference is in-app purchases: iORA at none against Organic Reactions Tutor's 1. iORA also leads on ratings volume (12 vs 2) and iOS requirement (14.3 vs 17.0). Organic Reactions Tutor's advantage is update cadence (fortnightly vs every 2 months). On price, rating, ads and device support there is nothing between them.

Both are free to download. Organic Reactions Tutor sells 1 one-off in-app purchase. iORA asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for iORA against 5.0 for Organic Reactions Tutor. That said, the two scores are not equally well evidenced: iORA has 12 ratings behind it against 2, so its average is the more settled of the two.

iORA ships an update every 2 months, Organic Reactions Tutor fortnightly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | iORA | Organic Reactions Tutor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (12 ratings)](https://appshunter.io/ios/app/iora-reaction-visualizer/id1609524913/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/organic-reactions-tutor/id6739188422/reviews) |
| Number of ratings | **12** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 40 MB | 35 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) | [David Soulsby](https://appshunter.io/developer/1776367161) |

## 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


### Organic Reactions Tutor

[App page](https://appshunter.io/ios/app/organic-reactions-tutor/id6739188422)

Master organic chemistry reactions with guided lessons, mastery checks, and targeted practice. Explore over 2,000 curated reactions for a two-semester course. Create custom study packs and track your progress with achievements.

**Highlights:** Guided lessons for Organic Chemistry I & II, 2,164 curated organic reactions, Mastery checks and targeted practice, Flashcards and multiple-choice quizzes, Custom drills and study packs, Offline access, Progress and achievement tracking

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Categories | $4.99 | one-time |


## Frequently asked questions

### Is iORA free?

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

### Is Organic Reactions Tutor free?

Organic Reactions Tutor is free to download, with in-app purchases available.

### Which has better reviews, iORA or Organic Reactions Tutor?

iORA and Organic Reactions Tutor are both rated 5.0 out of 5 on the App Store, from 12 and 2 ratings respectively.

### Do iORA or Organic Reactions Tutor have ads?

Neither iORA nor Organic Reactions Tutor shows ads.

### Which is updated more often, iORA or Organic Reactions Tutor?

iORA ships an update every 2 months, and Organic Reactions Tutor fortnightly. Most recently, iORA was updated on November 3, 2026 and Organic Reactions Tutor on November 5, 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.*