# Build Systems vs Cortex

The clearest difference is price: Cortex at Free against Build Systems's $7.99. Cortex also leads on iOS requirement (15.1 vs 26.0). Build Systems's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Cortex is free to download; Build Systems costs $7.99 up front. Cortex sells 1 one-off in-app purchase. Build Systems asks for nothing beyond the download.

## The numbers

| Metric | Build Systems | Cortex |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 months |
| Size | 12 MB | 84 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ashish Chandra](https://appshunter.io/developer/1843907932) | [Ippocode Technologies LLP](https://appshunter.io/developer/1852421273) |

## What reviewers say

### Build Systems

[App page](https://appshunter.io/ios/app/build-systems/id6754289812)

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

**In-app purchases:** none


### Cortex

[App page](https://appshunter.io/ios/app/cortex-local-ai/id6757537386)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cortex Pro | $19.99 | one-time |


## Frequently asked questions

### Is Build Systems free?

Build Systems costs $7.99, with no in-app purchases.

### Is Cortex free?

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

### Do Build Systems or Cortex have ads?

Neither Build Systems nor Cortex shows ads.

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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.*