# WebMO Molecule Editor vs Learn Kimi 90 Days Course

The clearest difference is update cadence: Learn Kimi 90 Days Course at every 3 days against WebMO Molecule Editor's every 3 months. WebMO Molecule Editor's advantage is iOS requirement (12.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. WebMO Molecule Editor sells 2 one-off in-app purchases and Learn Kimi 90 Days Course sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

WebMO Molecule Editor ships an update every 3 months, Learn Kimi 90 Days Course every 3 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | WebMO Molecule Editor | Learn Kimi 90 Days Course |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (40 ratings)](https://appshunter.io/ios/app/webmo-molecule-editor/id797898095/reviews)** | — |
| Number of ratings | **40** | — |
| Positive reviews | 60.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 12 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [WebMO, LLC](https://appshunter.io/developer/797898098) | [Gianluigi Grassi](https://appshunter.io/developer/1848540385) |

## What reviewers say

### WebMO Molecule Editor

[App page](https://appshunter.io/ios/app/webmo-molecule-editor/id797898095)

Create and explore 3D molecular structures, visualize chemical properties, and access extensive chemical databases. This tool is ideal for students and educators needing on-the-go access to molecular information and computational chemistry resources.

**Highlights:** 3D molecular editor, Structure optimization, Orbital and symmetry visualization, Chemical database lookup, Spectra visualization, High-resolution image capture, Computational chemistry program integration

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WebMO Premium for paid users | Free | one-time |
| WebMO Premium | $4.99 | one-time |


### Learn Kimi 90 Days Course

[App page](https://appshunter.io/ios/app/learn-kimi-90-days-course/id6803959104)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $0.99 | per month |
| Lifetime Access | $8.99 | one-time |


## Frequently asked questions

### Is WebMO Molecule Editor free?

WebMO Molecule Editor is free to download, with in-app purchases available.

### Is Learn Kimi 90 Days Course free?

Learn Kimi 90 Days Course is free to download, with in-app purchases available.

### Do WebMO Molecule Editor or Learn Kimi 90 Days Course have ads?

Neither WebMO Molecule Editor nor Learn Kimi 90 Days Course shows ads.

### Which is updated more often, WebMO Molecule Editor or Learn Kimi 90 Days Course?

WebMO Molecule Editor ships an update every 3 months, and Learn Kimi 90 Days Course every 3 days. Most recently, WebMO Molecule Editor was updated on November 1, 2026 and Learn Kimi 90 Days Course on October 31, 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.*