# WebMO Premium vs Examus

The clearest difference is price: Examus at Free against WebMO Premium's $4.99. Examus also leads on update cadence (fortnightly vs every 17 months). WebMO Premium's advantage is iOS requirement (12.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

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

WebMO Premium ships an update every 17 months, Examus fortnightly. Both last shipped on October 7, 2026.

## The numbers

| Metric | WebMO Premium | Examus |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/webmo-premium/id1448564335/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 12 MB | 34 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WebMO, LLC](https://appshunter.io/developer/797898098) | [Klaudia Sawczak](https://appshunter.io/developer/1854816700) |

## 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


### Examus

[App page](https://appshunter.io/ios/app/examus/id6755604178)

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

**In-app purchases:** none


## Frequently asked questions

### Is WebMO Premium free?

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

### Is Examus free?

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

### Do WebMO Premium or Examus have ads?

Neither WebMO Premium nor Examus shows ads.

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

WebMO Premium ships an update every 17 months, and Examus fortnightly. Most recently, WebMO Premium was updated on October 7, 2026 and Examus on October 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.*