# Imagine Math Class 4 vs (Open Source) Mental Math

The clearest difference is in-app purchases: (Open Source) Mental Math at none against Imagine Math Class 4's 10. Imagine Math Class 4's advantage is device support (4 vs 2) and iOS requirement (9.0 vs 16.4). On price there is nothing between them.

Both are free to download. Imagine Math Class 4 sells 10 one-off in-app purchases. (Open Source) Mental Math asks for nothing beyond the download.

## The numbers

| Metric | Imagine Math Class 4 | (Open Source) Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/open-source-mental-math/id6788418444/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | — | Every 5 weeks |
| Monetization | — | Free |
| Size | 70 MB | 41 MB |
| Requires iOS | **9.0** | 16.4 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pixatel Systems, Inc.](https://appshunter.io/developer/1153818901) | [AHMET EMRE DEDELER](https://appshunter.io/developer/1870913629) |

## 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 |


### (Open Source) Mental Math

[App page](https://appshunter.io/ios/app/open-source-mental-math/id6788418444)

This application offers a free, open-source platform for practicing mental arithmetic. It features timed tests, custom drills, and a comprehensive library of mental math tricks. All content is available offline without ads or paywalls.

**Highlights:** Timed arithmetic tests, Customizable drills, Mental math tricks library, Offline progress tracking, Multiple operation types, Fast session interface

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

**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 (Open Source) Mental Math free?

(Open Source) Mental Math 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.*