# Ai vs CORTEX_

The clearest difference is in-app purchases: Ai at none against CORTEX_'s 4. CORTEX_'s advantage is update cadence (weekly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CORTEX_ sells 4 in-app purchases, starting at $19.99 per month. Ai asks for nothing beyond the download.

Ai ships an update monthly, CORTEX_ weekly. The most recent releases landed on September 28, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Ai | CORTEX_ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 6 MB | 336 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michal Jach](https://appshunter.io/developer/1474348197) | [George Bayze](https://appshunter.io/developer/1884716979) |

## What reviewers say

### Ai

[App page](https://appshunter.io/ios/app/ai-open-source-ai-assistant/id6755691873)

**Features:** macOS Compatibility

**In-app purchases:** none


### CORTEX_

[App page](https://appshunter.io/ios/app/cortex/id6788205210)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CORTEX Pro | $19.99 | per month |
| CORTEX Operator | $59.00 | per month |
| CORTEX Pro (Yearly) | $199.99 | per year |
| CORTEX Operator (Yearly) | $499.99 | per year |


## Frequently asked questions

### Is Ai free?

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

### Is CORTEX_ free?

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

### Do Ai or CORTEX_ have ads?

Neither Ai nor CORTEX_ shows ads.

### Which is updated more often, Ai or CORTEX_?

Ai ships an update monthly, and CORTEX_ weekly. Most recently, Ai was updated on September 28, 2026 and CORTEX_ on October 2, 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.*