Rune vs kuku
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 kuku leads with 552 upvotes
Write it down on one Mac, find it on the other
Rune is a lightweight, high-speed text editor designed exclusively for Mac users seeking seamless cross-device editing. Its core feature is a shared scratch file stored in iCloud Drive, allowing users to access, edit, and update the same document effortlessly across multiple Macs. Changes are saved automatically and merged in real-time, ensuring that no work is lost or overwritten, making it ideal for those who need quick, synchronized note-taking or code snippets. With support for plain-text pasting, Sublime Text's color schemes and keyboard shortcuts, and a built-in 'Find in History' feature, Rune combines simplicity with powerful functionality tailored for developers and productivity enthusiasts alike.
Pros
- Real-time synchronization across multiple Macs via iCloud Drive
- Lightweight, fast, and minimalistic interface
- Supports plain-text pasting and Sublime Text keybindings and themes
- Automatic saving and merging of edits to prevent data loss
- Includes 'Find in History' for quick access to previous edits
Cons
- Limited to Mac ecosystem, not available on other platforms
- Focused mainly on plain-text editing, lacking advanced formatting features
- Requires iCloud Drive setup for synchronization
Best for
- • Quick note-taking and idea jotting across multiple Macs
- • Coding snippets and developer notes synchronized seamlessly
- • Collaborative editing for solo workflows or small projects
- • Maintaining consistent scratch files for different devices
Pricing: Pricing not verified
Obsidian — but a lot has changed
Kuku is a native, local-first markdown editor designed for macOS users who prioritize privacy, speed, and flexibility. Built with Tauri instead of Electron, it offers a lightweight, offline-capable experience where notes are stored as plain markdown files, supporting wikilinks, backlinks, and visual graph views. Its standout feature is an integrated AI agent that not only chats but actively searches, edits, and links files, presenting changes with Cursor-style diffs for transparent review. This combination of traditional note-taking with AI-driven enhancements makes Kuku ideal for writers, researchers, and productivity enthusiasts seeking a seamless, privacy-focused environment. Its offline-first design ensures data security and quick access, while its modern UI and robust features offer an Obsidian-like experience minus the bloat and cloud dependencies.
Pros
- Native macOS app built with Tauri for improved speed and stability
- Offline-first with no reliance on cloud storage, ensuring privacy
- Integrated AI agent that searches, edits, and links files intelligently
- Supports markdown with wikilinks, backlinks, and graph view features
- Transparent change tracking with Cursor-style diffs
Cons
- Limited to macOS, no Windows or Linux versions currently
- Still a relatively new tool, with a smaller community compared to established options
- May require some learning curve for users unfamiliar with markdown or AI integrations
Best for
- • Knowledge management and personal wiki building
- • Research note organization with advanced linking and graph views
- • Creative writing and drafting with AI-assisted editing
- • Offline note-taking for privacy-conscious users
Pricing: Likely operates on a freemium model with core features available for free, and premium features or AI capabilities offered via paid plans, though specific pricing details are not publicly confirmed.