# Imagine Math Class 4 vs Substances and Mixtures

The clearest difference is in-app purchases: Substances and Mixtures at none against Imagine Math Class 4's 10. Imagine Math Class 4's advantage is iOS requirement (9.0 vs 12.0). On price and device support there is nothing between them.

Both are free to download. Imagine Math Class 4 sells 10 one-off in-app purchases. Substances and Mixtures asks for nothing beyond the download.

## The numbers

| Metric | Imagine Math Class 4 | Substances and Mixtures |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Size | 70 MB | 32 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pixatel Systems, Inc.](https://appshunter.io/developer/1153818901) | [Science Education Institute](https://appshunter.io/developer/1439710468) |

## What reviewers say

### Imagine Math Class 4

[App page](https://appshunter.io/ios/app/imagine-math-class-4/id1156559698)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Multiplication | Free | one-time |
| Subtraction | Free | one-time |
| Addition and Subtraction | Free | one-time |
| Division and Unitary Method | Free | one-time |
| Multiples and Factors | Free | one-time |
| Fractions | Free | one-time |
| Measurement Perimeter and Area | Free | one-time |
| Time and Money | Free | one-time |
| Shapes Patterns Data Handling | Free | one-time |
| All Categories | Free | one-time |


### Substances and Mixtures

[App page](https://appshunter.io/ios/app/substances-and-mixtures/id6736859922)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Imagine Math Class 4 free?

Imagine Math Class 4 is free to download, with in-app purchases available.

### Is Substances and Mixtures free?

Substances and Mixtures is free to download, with no in-app purchases.

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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.*