# Prompt Keyboard vs Cortex

The clearest difference is in-app purchases: Prompt Keyboard at none against Cortex's 3. Cortex's advantage is device support (4 vs 1) and iOS requirement (15.0 vs 17.6). On price and ads there is nothing between them.

Both are free to download. Cortex sells 3 in-app purchases, starting at $4.99 per month. Prompt Keyboard asks for nothing beyond the download.

## The numbers

| Metric | Prompt Keyboard | Cortex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 11 MB | 131 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Ha Do Thi Thu](https://appshunter.io/developer/1707030622) | [JTR Labs LLC](https://appshunter.io/developer/1892768253) |

## What reviewers say

### Prompt Keyboard

[App page](https://appshunter.io/ios/app/prompt-keyboard-ai-paste/id6770451676)

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

**In-app purchases:** none


### Cortex

[App page](https://appshunter.io/ios/app/cortex-local-markdown-brain/id6785630809)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cortex Plus (Monthly) | $4.99 | per month |
| Cortex Plus (Yearly) | $39.99 | per year |
| Cortex Believer | $99.99 | one-time |


## Frequently asked questions

### Is Prompt Keyboard free?

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

### Is Cortex free?

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

### Do Prompt Keyboard or Cortex have ads?

Neither Prompt Keyboard 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.*