# Engineering Math Quiz vs Cortx

The clearest difference is iOS requirement: Engineering Math Quiz at 12.0 against Cortx's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Engineering Math Quiz sells 7 in-app purchases, starting at $4.99 per month and Cortx sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Engineering Math Quiz ships an update every 3 weeks, Cortx fortnightly. The most recent releases landed on September 25, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Engineering Math Quiz | Cortx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/engineering-math-quiz/id1583491466/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 68 MB | 71 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Arshad Iqbal](https://appshunter.io/developer/1547001151) | [Lawyyar](https://appshunter.io/developer/1793895411) |

## What reviewers say

### Engineering Math Quiz

[App page](https://appshunter.io/ios/app/engineering-math-quiz/id1583491466)

Practice over 350 engineering math trivia questions with this free iOS app. It offers self-assessment tests and answer keys for various topics, aiding students in their learning and exam preparation.

**Highlights:** 350+ engineering math trivia questions, Self-assessment tests, Answer keys provided, Covers basic and advanced topics, Revision guide for students, Practice for online exams

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Package | $4.99 | per month |
| 3 Months Package | $9.99 | per 3 months |
| 6 Months Package | $14.99 | per 6 months |
| 1 Year Package | $19.99 | per year |
| 1500 Coins | $0.99 | one-time |
| 3500 Coins | $0.99 | one-time |
| 6000 Coins | $2.99 | one-time |


### Cortx

[App page](https://appshunter.io/ios/app/cortx/id6761021149)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cortx Pro | $0.99 | per month |
| Cortx Elite | $4.99 | per year |


## Frequently asked questions

### Is Engineering Math Quiz free?

Engineering Math Quiz is free to download, with in-app purchases available.

### Is Cortx free?

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

### Do Engineering Math Quiz or Cortx have ads?

Both Engineering Math Quiz and Cortx show ads.

### Which is updated more often, Engineering Math Quiz or Cortx?

Engineering Math Quiz ships an update every 3 weeks, and Cortx fortnightly. Most recently, Engineering Math Quiz was updated on September 25, 2026 and Cortx on September 11, 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.*