# Model ChemLab for iPad vs Atom Structure

The clearest difference is price: Atom Structure at $1.99 against Model ChemLab for iPad's $33.99. Atom Structure also leads on device support (3 vs 1) and iOS requirement (12.0 vs 14.0). Model ChemLab for iPad's advantage is update cadence (weekly vs every 41 months). On ads and in-app purchases there is nothing between them.

Model ChemLab for iPad costs $33.99 and Atom Structure $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Model ChemLab for iPad ships an update weekly, Atom Structure every 41 months. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Model ChemLab for iPad | Atom Structure |
| --- | --- | --- |
| Price | $33.99 | **$1.99** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 41 months |
| Size | 19 MB | 232 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Model Science Software Inc.](https://appshunter.io/developer/1505551537) | [VIRTUAL FILAMENTS PRIVATE LIMITED](https://appshunter.io/developer/1474217212) |

## What reviewers say

### Model ChemLab for iPad

[App page](https://appshunter.io/ios/app/model-chemlab-for-ipad/id1556078955)

**Features:** macOS Compatibility

**In-app purchases:** none


### Atom Structure

[App page](https://appshunter.io/ios/app/atom-structure-edutech-era/id1637054844)

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

**In-app purchases:** none


## Frequently asked questions

### Is Model ChemLab for iPad free?

Model ChemLab for iPad costs $33.99, with no in-app purchases.

### Is Atom Structure free?

Atom Structure costs $1.99, with no in-app purchases.

### Do Model ChemLab for iPad or Atom Structure have ads?

Neither Model ChemLab for iPad nor Atom Structure shows ads.

### Which is updated more often, Model ChemLab for iPad or Atom Structure?

Model ChemLab for iPad ships an update weekly, and Atom Structure every 41 months. Most recently, Model ChemLab for iPad was updated on September 23, 2026 and Atom Structure on September 10, 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.*