You open a long markdown document on your iPhone. You need section four. You scroll. And scroll. And scroll.
Your current editor -- the one that costs $19.99, or charges you every month -- doesn't have a document outline on iPhone. It never has. You've been asking for years.
Krux has it. Day one.
Tap the outline panel and jump to any heading in your document instantly. On iPhone. On iPad. On Mac. It works the way it should have always worked.
---
WRITE EVERYWHERE
Krux is a native markdown editor built for every Apple device you own. iPhone, iPad, Mac, Apple Watch. Your documents sync through iCloud Drive as standard .md files -- the same files you open in VS Code, BBEdit, or any editor you choose.
Dictate a note on your Apple Watch while your phone is in your bag. It's in your Files app by the time you sit down.
---
WHAT YOU GET
-- Document outline with jump-to-heading navigation on every platform
-- Live syntax highlighting with real-time preview
-- Side-by-side preview on iPad and Mac, tabbed preview on iPhone
-- Focus mode that dims everything but the current paragraph
-- Apple Watch companion with dictation, offline reading, and watch face complication
-- Export to HTML, PDF, or raw markdown in one tap
-- Formatting toolbar with 13 actions plus full keyboard shortcuts
-- OLED-optimized pure-black dark mode
-- iOS 26 Liquid Glass design, built in Swift
---
YOUR FILES. YOUR FORMAT. FOREVER.
Every file Krux creates is a plain .md file. No proprietary database. No invisible metadata. No lock-in.
Open a Krux file in any other editor -- it looks exactly the same. Because it is exactly the same. Standard markdown, stored in your iCloud Drive, readable everywhere.
Zero data collection. No accounts. No tracking. Confirmed by Apple's required PrivacyInfo.xcprivacy declaration.
---
ONE PRICE. NO SUBSCRIPTION.
Pay once. Write forever. No monthly fee. No annual renewal. No "upgrade to Pro."
Krux for iPhone and iPad: $4.99.
Krux for Mac: $9.99.
Apple Watch companion: included.
---
THE LANGUAGE OF AI, NATIVELY
Claude Code, ChatGPT, and GitHub Copilot all write in markdown. Krux is where that output lives on your iPhone -- rendered cleanly, navigated with the outline, stored as plain files that feed right back into your workflow.
Markdown is the language of AI. Krux is its native home.
---
Built for iOS 26 with Liquid Glass. Runs on iPhone and iPad.
---
