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Cats Lock

Lock your Mac keyboard so your cat can walk on it.

2026-05-15

Product Introduction

  1. Definition: Cats Lock is a sandboxed, native macOS application that functions as a specialized keyboard and mouse input lock utility. Its primary technical purpose is to temporarily disable all input from a Mac's keyboard, trackpad, and mouse.
  2. Core Value Proposition: It exists to provide a simple, reliable, and privacy-focused solution for cat owners and remote professionals to prevent unwanted pet or accidental human input on their computers. Unlike generic keyboard-locking tools designed for cleaning, Cats Lock is specifically engineered for the "cat moment" and professional stealth scenarios.

Main Features

  1. Stealth Lock Mode: This is a core innovation. When activated, the app provides a completely silent and invisible lock screen. No visual indicator or sound confirms the lock is engaged, making it ideal for video meetings or screen sharing sessions where a cat walks across the keyboard. It works by intercepting and blocking HID (Human Interface Device) input signals at the system level while presenting a blank, non-intrusive overlay.
  2. Customizable Audio Warning: Users can customize the warning sound that plays upon locking or unlocking. The app supports importing custom audio files (e.g., WAV, MP3), allowing for personalized sounds. This feature provides a clear, user-defined auditory cue that the lock state has changed, which is crucial for accessibility and user awareness.
  3. Global Hotkey & Menu Bar Control: The app can be instantly activated via a configurable global keyboard shortcut (default: ⌘L) from any application or directly from the macOS menu bar icon. This provides rapid, system-wide access without needing to switch contexts or find the main application window, ensuring quick reaction to an approaching pet.
  4. Privacy-First & Sandboxed Architecture: Cats Lock is built as a sandboxed Mac App Store application. This technical implementation means it runs in a restricted environment with explicitly declared permissions, enhancing security. The developer explicitly states the app collects no analytics, requires no account, and does not transmit any user data.
  5. One-Time Purchase Model: The app is available for a single payment of $2.99 with no recurring subscriptions, in-app purchases, or feature limitations. This transparent pricing model is a key feature differentiating it from subscription-based utilities.

Problems Solved

  1. Pain Point: Unwanted feline interference during critical computer work, such as sending garbled messages, deleting text, closing windows, or activating shortcuts. It also solves the problem of needing a discreet lock during video calls to prevent meeting disruptions.
  2. Target Audience: Primary personas include remote workers and professionals (especially those in frequent video meetings), writers, programmers, and any cat owner who uses a Mac. A secondary audience includes parents or individuals seeking a simple way to temporarily child-proof a keyboard.
  3. Use Cases: Essential when a cat steps on the keyboard during a live Zoom presentation; when leaving a Mac unattended with a curious pet in the room; during screen recording to prevent accidental exits; or as a simple "pause" mechanism during focused work to avoid misclicks.

Unique Advantages

  1. Differentiation: Compared to free keyboard cleaners or system scripts, Cats Lock offers a polished, purpose-built user experience with Stealth Mode and sound customization. Versus other paid utilities, its focus on the cat-owner niche, one-time fee, and strong privacy stance (sandboxed, no analytics) are distinct advantages.
  2. Key Innovation: The Stealth Lock mode is the primary innovation. By being both silent and invisible, it addresses a specific gap for professional and social computing scenarios where an obvious lock screen would be disruptive or embarrassing. The combination of this with customizable audio alerts creates a versatile tool for both discreet and clear notifications.

Frequently Asked Questions (FAQ)

  1. How does Cats Lock for Mac prevent my cat from typing? Cats Lock works by creating a system-level overlay that intercepts and blocks all input signals from your keyboard, trackpad, and mouse. When activated, no HID events are passed to the operating system or applications, effectively making your input devices non-functional until you unlock with your designated hotkey or menu bar control.
  2. Is the Cats Lock app safe and private for my Mac? Yes, Cats Lock prioritizes safety and privacy. It is a sandboxed application distributed through the official Mac App Store, meaning it adheres to Apple's strict security guidelines. The developer confirms it contains no analytics, telemetry, or tracking code, and requires no user account, ensuring your activity data remains private.
  3. Can I use Cats Lock during a video call or screen share? Absolutely. This is the primary use case for the Stealth Lock mode. When enabled, Stealth Lock activates an invisible lock screen, allowing you to block cat input without any visual disruption appearing on your shared screen or alerting meeting participants.
  4. What is the difference between Cats Lock and a keyboard cleaning mode? Standard keyboard cleaning modes (like those built into some apps) are designed for physical cleaning and often still allow certain key combinations (like Command+Q to quit). Cats Lock is a full input blockade engineered for dynamic, living interruptions (pets), offering more robust locking, stealth operation, and customizable alerts not found in cleaning utilities.
  5. Does Cats Lock work with external keyboards and mice? Yes, Cats Lock functions at the macOS input level, meaning it will lock all connected input devices recognized by the system, including built-in keyboards/trackpads, Bluetooth peripherals, and USB-connected mice and keyboards.

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