My Knowledge Base vs Cortex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
My Knowledge Base
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.
- Capture ideas and facts
- Store text, photos, links, sketches
- Customizable entry templates
- Powerful search and query system
- Organize information efficiently
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Meet My Knowledge Base: your brain’s new best friend. It’s the app that captures every brilliant idea, random fact, or fleeting detail you stumble across daily—before they slip away. Part note-taking wizard, part personal database powerhouse, it’s a memory upgrade for anyone who’s ever blanked on that one thing they swore they’d remember. Store it all in Entries—think text snippets, numbers, dates, photos, quick sketches, web links, and more. Add a label if you’re feeling fancy, and boom, it’s findable later. With Custom Entry Templates, you can slam data in fast, tailored to your style, and still dig it up effortlessly when you need it. The real magic? A slick query system that hunts down exactly what you’re after, no rummaging required. My Knowledge Base doesn’t just store your life—it hands it back to you, organized and on demand.
Cortex
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Cortex is a private, local-first Markdown workspace for iPhone and iPad. Your notes are real files you control, with fast editing, links, search, and on-device intelligence. CORE FEATURES - Create and organize plain Markdown notes - Daily notes, tasks, templates, links, and backlinks - Keyword search, Smart Search, knowledge graph, and canvas - Save text and links from other apps with the Share Extension - Create, search, and summarize notes with App Shortcuts and Siri - Import, backup, and export your vault - Use Apple Speech for dictation in supported languages FREE - A complete local Markdown vault - Smart Search and knowledge graph - Encrypted notes - Basic dictation - Local attachments up to 5 MB - Import, backup, and export CORTEX PLUS - End-to-end encrypted sync across devices - Ask, Recall, Insights, and semantic Connections - Advanced dictation commands - On-device OCR and audio transcription - Attachments larger than 5 MB Cortex requires no account and contains no ads or tracking. AI inference and embeddings run on your device. If you enable sync, Cortex encrypts your notes before sending authenticated ciphertext to the managed relay or a relay you configure; the relay cannot read note contents. Terms of Use: https://cortex.jtrlabs.com/legal/terms.html Privacy Policy: https://cortex.jtrlabs.com/legal/privacy.html
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | My Knowledge Base | Cortex |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 131 MB |
| Age rating | 4+ | 4+ |
| Developer | Wiktor Starzyk | JTR Labs LLC |
In-app purchases
My Knowledge Base
- Unlock Unlimited Items$2.99
Cortex
- Cortex Plus (Monthly)$4.991 Month
- Cortex Plus (Yearly)$39.991 Year
- Cortex Believer$99.99









