Cortex: Local Markdown Brain

Cortex: Local Markdown Brain

On-device recall, plain files

0 ratings
Free
In-App Purchases

Rating summary

Details

  • Released
  • Updated
  • July 14, 2026
  • September 1, 2026

Features

Cortex: Local Markdown Brain screenshot #1 for iPhone
Cortex: Local Markdown Brain screenshot #2 for iPhone
Cortex: Local Markdown Brain screenshot #3 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

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
Show more

What's New in Cortex

1.0.2

September 1, 2026

- Fixed synchronized editor saves reverting after a later sync. - Renames and deletions now sync durably without restoring old or duplicate notes. - Protected final keystrokes and split-editor saves while sync is running. - Added conflict-safe filename handling, interrupted-sync recovery, and safer Undo. - Kept search and graph results current after synchronized moves and deletions. - Preserved recoverable offline work when another device deletes the same note.

More

Subscription plans

Cortex Plus (Monthly)

All AI, sync & unlimited storage.

$4.991 Month
How to cancel Cortex subscription ⁉️
1

In-App Purchases

$99.99

Cortex Believer

Lifetime unlock: all AI, sync, storage + early access.

Developer apps