# WebMO Premium vs iORA

The clearest difference is price: iORA at Free against WebMO Premium's $4.99. iORA also leads on rating (5.0 vs 4.0) and review sentiment (100% vs 67%). WebMO Premium's advantage is iOS requirement (12.0 vs 14.3). On ads, in-app purchases and device support there is nothing between them.

iORA is free to download; WebMO Premium costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iORA holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 12 respectively. Written reviews point the same way: 67% of WebMO Premium's written reviews are positive against 100% of iORA's.

WebMO Premium ships an update every 17 months, iORA every 2 months. The most recent releases landed on August 23, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | WebMO Premium | iORA |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/webmo-premium/id1448564335/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/iora-reaction-visualizer/id1609524913/reviews)** |
| Number of ratings | 4 | **12** |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 12 MB | 40 MB |
| Requires iOS | **12.0** | 14.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WebMO, LLC](https://appshunter.io/developer/797898098) | [Daniel Ess](https://appshunter.io/developer/1609524915) |

## What reviewers say

### WebMO Premium

[App page](https://appshunter.io/ios/app/webmo-premium/id1448564335)

This app allows users to build and visualize molecules in 3D, access chemical information from external databases, and interact with advanced computational chemistry programs. It's designed for students and faculty needing mobile access to molecular structures and data.

**Highlights:** 3D molecular editor, VSEPR and molecular mechanics optimization, Orbital and symmetry visualization, Chemical data lookup, Computational chemistry program integration, Spectra visualization

**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 WebMO Premium free?

WebMO Premium costs $4.99, with no in-app purchases.

### Is iORA free?

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

### Which has better reviews, WebMO Premium or iORA?

iORA is rated higher. WebMO Premium averages 4.0 out of 5 from 4 ratings, while iORA averages 5.0 from 12 ratings.

### Do WebMO Premium or iORA have ads?

Neither WebMO Premium nor iORA shows ads.

### Which is updated more often, WebMO Premium or iORA?

WebMO Premium ships an update every 17 months, and iORA every 2 months. Most recently, WebMO Premium was updated on August 23, 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.*