# Maths Engineering vs Cortx

The clearest difference is in-app purchases: Maths Engineering at none against Cortx's 2. Maths Engineering also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Cortx sells 2 in-app purchases, starting at $0.99 per month. Maths Engineering asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 14, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Maths Engineering | Cortx |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | Fortnightly |
| Size | 300 MB | 71 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 9+ |
| Developer | [Promath Technology Private Limited](https://appshunter.io/developer/1772077330) | [Lawyyar](https://appshunter.io/developer/1793895411) |

## What reviewers say

### Maths Engineering

[App page](https://appshunter.io/ios/app/maths-engineering/id6736468806)

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

**In-app purchases:** none


### 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 Maths Engineering free?

Maths Engineering is free to download, with no in-app purchases.

### Is Cortx free?

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

### Do Maths Engineering or Cortx have ads?

Cortx shows ads; Maths Engineering does not.

### Which is updated more often, Maths Engineering or Cortx?

Maths Engineering ships an update fortnightly, and Cortx fortnightly. Most recently, Maths Engineering was updated on September 14, 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.*