Kumiko

Product Introduction

1. Definition: Kumiko is an advanced AI-powered Mac window manager specifically engineered for ultrawide (21:9, 32:9) and large-screen (4K/5K) monitors running macOS 14 or later. Categorized under desktop productivity software and window management utilities, it bridges the gap between traditional manual window snapping and natural language context orchestration.
2. Core Value Proposition: Kumiko exists to eliminate the friction of organizing multiple application windows across expansive digital workspaces. By combining adaptive screen layouts, precise keyboard-driven window snapping, and an AI-driven command bar (powered by Claude or local on-device models), Kumiko allows users to instantly arrange windows, restore full project sessions, automate meeting setups, and manage screen-sharing privacy using simple conversational prompts or hotkeys (⌃⌥ combinations).

Main Features

1. Adaptive Multi-Display Layouts: Kumiko features six intelligent screen layouts (such as "Focus Centre" and "Studio") that dynamically adjust their geometry based on the exact aspect ratio of the connected monitor—whether 16:9, 21:9 ultrawide, or 32:9 super-ultrawide. Users can cycle through layouts instantly using ⌃⌥1 through ⌃⌥6, maintaining independent configurations per display.
2. Precision Arrow Key Snapping: Holding ⌃⌥ alongside directional arrow keys allows users to snap windows to specific screen halves, thirds, or two-thirds (starting at one-third on ultrawide monitors) and corners with consecutive keypresses. An intuitive visual overlay guides placement, while the ⌃⌥0 shortcut restores a display to its default layout.
3. Conversational AI Command Bar: Triggered via ⌥Space, the natural language command bar analyzes active windows, opens missing applications, brings specific browser tabs to the front, and hides or quits irrelevant processes based on the user's prompt (e.g., "Start Design Review"). Users preview the generated plan before applying it with ↵ or saving it as a reusable workspace via ⌘↵.
4. Session Resume with Tab and Folder Restoration: Beyond standard app reopening, Kumiko preserves exact application states across system sleep, lock, or app quit events (and automatically every 20 minutes). It restores individual browser tabs across 45 supported apps, project directories in code editors, and specific working folders inside terminal windows.
5. Meeting and Share-Safe Automation: Integrating with system microphone states, Kumiko automatically repositions video conferencing windows directly beneath the Mac's built-in camera while placing supporting reference windows underneath during calls. Additionally, the "Share-safe" feature instantly blurs sensitive applications (like Mail, Messages, and password managers) upon screen-sharing detection in Zoom, Teams, Meet, Slack, or Webex, or manually via ⌃⌥P.

Problems Solved

1. Pain Point: Standard macOS window management and traditional utilities like Rectangle or Magnet treat ultrawide monitors inefficiently, forcing users into tedious manual window dragging and failing to restore contextual sub-states like browser tabs, terminal paths, or editor directories. Furthermore, context switching between distinct workflows requires repetitive manual rearrangement.
2. Target Audience: Software developers managing multiple IDEs and terminals, financial analysts working with wide spreadsheets, video editors and content creators utilizing massive timeline displays, product managers juggling documentation and communication apps, and remote professionals frequently sharing screens on video calls.
3. Use Cases: A developer transitioning from coding to a debugging session by typing a single command to arrange their IDE, local server terminal, and documentation browser tabs; an ultrawide monitor user splitting a 32:9 screen into distinct logical dual-monitor environments; or a remote worker automatically blurring private messaging apps the moment a Zoom screen-sharing session initiates.

Unique Advantages

1. Strengths & Limitations (Pros & Cons):
   • Pros: Exceptional ultrawide display optimization; native support for restoring browser tabs, folder paths, and terminal directories; robust privacy controls (keeps learning and rules locally on-device, only sending necessary window metadata to AI); versatile offline functionality (layouts, snapping, Resume, and Meeting modes work entirely without AI).
   • Cons: Requires macOS 14 or later; no native free trial period (though mitigated by a low-cost launch pricing tier and a 14-day refund policy); optional AI command bar functionality requires either an active monthly/annual subscription, a personal Claude API key, or reliance on the smaller on-device model.
2. Key Alternatives & Differentiation: Compared to traditional window managers like Rectangle, Magnet, or Moom—which rely solely on static grid snapping or manual hotkey placement—Kumiko introduces intent-based workspace generation via natural language, automatic meeting-mode layout adjustments, deep browser tab/terminal directory state restoration, and multi-monitor layout persistence. While standard utilities require manual setup for every application instance, Kumiko learns user rearrangement habits and builds persistent, context-aware workspaces.

Frequently Asked Questions (FAQ)

1. Do I need an ongoing subscription to use Kumiko? No. The purchase of a Kumiko license is a one-time payment that covers up to two Macs and includes all core window management, snapping, resume, and layout features. Kumiko AI (the natural language command bar add-on) is completely optional and available via subscription or your own Claude API key.
2. What data is sent to the AI when I use natural language commands? Kumiko sends only your typed prompt, open window titles and app names, and—if explicitly enabled—cleaned browser tab addresses with authentication tokens and sign-in codes stripped out. Screen contents and screenshots are never captured or transmitted.
3. How does Kumiko differ from built-in macOS window tiling or Rectangle? Built-in macOS tiling and tools like Rectangle snap individual windows to fixed halves or quarters of a standard screen. Kumiko is purpose-built for ultrawide and large monitors, offering whole-screen multi-window layouts, automated meeting and screen-sharing privacy modes, and an AI command bar that arranges your entire desktop from a single sentence.
4. Can I use Kumiko without enabling the AI features? Yes. All core features including multi-display layouts, ultrawide arrow-key snapping, Session Resume, Focus routines, meeting repositioning, and Share-safe privacy blurring function entirely offline without any AI component enabled.
5. What is the refund policy if Kumiko does not fit my workflow? Kumiko offers a 14-day money-back guarantee. If you are unsatisfied with the software, you can email support within 14 days of purchase to receive a full refund.