# Inverse Variation vs Experimentor

The clearest difference is in-app purchases: Inverse Variation at none against Experimentor's 6. Inverse Variation also leads on device support and iOS requirement (12.0 vs 18.0). On price there is nothing between them.

Both are free to download. Experimentor sells 6 one-off in-app purchases. Inverse Variation asks for nothing beyond the download.

## The numbers

| Metric | Inverse Variation | Experimentor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Size | 30 MB | 20 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Science Education Institute](https://appshunter.io/developer/1439710468) | [Feraco media Inc.](https://appshunter.io/developer/497957884) |

## What reviewers say

### Inverse Variation

[App page](https://appshunter.io/ios/app/inverse-variation/id6742364340)

**Features:** macOS Compatibility

**In-app purchases:** none


### Experimentor

[App page](https://appshunter.io/ios/app/experimentor/id6761420708)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Forces & Motion Lab Pack | $2.99 | one-time |
| Waves & Sound Lab Pack | $2.99 | one-time |
| Earth & Weather Lab Pack | $2.99 | one-time |
| Energy Lab Pack | $2.99 | one-time |
| Magnets & Fields Lab Pack | $2.99 | one-time |
| All Lab Packs | $9.99 | one-time |


## Frequently asked questions

### Is Inverse Variation free?

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

### Is Experimentor free?

Experimentor is free to download, with in-app purchases available.

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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.*