# pluma | your in class note app vs Cortex

The clearest difference is in-app purchases: pluma | your in class note app at none against Cortex's 3. pluma | your in class note app also leads on update cadence (daily vs every 3 days). Cortex's advantage is device support (4 vs 1) and iOS requirement (15.0 vs 17.4). 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. pluma | your in class note app asks for nothing beyond the download.

pluma | your in class note app ships an update daily, Cortex every 3 days. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | pluma | your in class note app | Cortex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 days |
| Size | 1 MB | 131 MB |
| Requires iOS | 17.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Laura Carolina Balbachan dos Santos](https://appshunter.io/developer/1748646380) | [JTR Labs LLC](https://appshunter.io/developer/1892768253) |

## What reviewers say

### pluma | your in class note app

[App page](https://appshunter.io/ios/app/pluma-your-in-class-note-app/id6503261460)

**Features:** macOS Compatibility

**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 pluma | your in class note app free?

pluma | your in class note app is free to download, with no in-app purchases.

### Is Cortex free?

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

### Do pluma | your in class note app or Cortex have ads?

Neither pluma | your in class note app nor Cortex shows ads.

### Which is updated more often, pluma | your in class note app or Cortex?

pluma | your in class note app ships an update daily, and Cortex every 3 days. Most recently, pluma | your in class note app was updated on September 17, 2026 and Cortex on September 9, 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.*