# My Knowledge Base vs Cortex

The clearest difference is update cadence: Cortex at every 3 days against My Knowledge Base's every 5 weeks. Cortex also leads on device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. My Knowledge Base sells 1 one-off in-app purchase and Cortex sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

My Knowledge Base ships an update every 5 weeks, Cortex every 3 days. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | My Knowledge Base | Cortex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/my-knowledge-base/id6575390471/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 131 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Wiktor Starzyk](https://appshunter.io/developer/1490335440) | [JTR Labs LLC](https://appshunter.io/developer/1892768253) |

## What reviewers say

### My Knowledge Base

[App page](https://appshunter.io/ios/app/my-knowledge-base/id6575390471)

Capture and organize all your ideas, facts, and details effortlessly. This app acts as a personal database, allowing you to store various types of information and retrieve it quickly with a powerful search system. Customize your data input with templates for efficient management.

**Highlights:** Capture ideas and facts, Store text, photos, links, sketches, Customizable entry templates, Powerful search and query system, Organize information efficiently

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Unlimited Items | $2.99 | one-time |


### 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 My Knowledge Base free?

My Knowledge Base is free to download, with in-app purchases available.

### Is Cortex free?

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

### Do My Knowledge Base or Cortex have ads?

Neither My Knowledge Base nor Cortex shows ads.

### Which is updated more often, My Knowledge Base or Cortex?

My Knowledge Base ships an update every 5 weeks, and Cortex every 3 days. Most recently, My Knowledge Base was updated on October 2, 2026 and Cortex on October 12, 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.*