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Masko

Desktop pet for Mac

A desktop pet for your Mac, made useful.

Keep an animated character beside your windows. It can rest, react, remind you, celebrate, and show when an AI agent needs attention.

Download your desktop petCreate your own

macOS 14 or newer. Start free with Ko.

See how it works ↓

A normal day together

More than decoration.

A Masko pet can stay quiet while you work, perform a reminder, react to music, and change when a connected agent is waiting.

  1. 01
    Rest

    A subtle loop keeps the character alive without stealing focus.

  2. 02
    React

    Agent states, music, and personal moments can trigger movement.

  3. 03
    Remind

    Water, breaks, breathing, and focus become character actions.

More than decoration.

How it works

Install a desktop pet in three steps.

Start with the app, then decide how personal you want the character to become.

  1. 01Download

    Install Masko for macOS 14 or newer.

  2. 02Meet Ko

    Try the companion before spending time creating one.

  3. 03Make it yours

    Choose a marketplace mascot or create your own pet from a picture.

In practice

A different kind of Mac desktop pet.

Masko keeps the playful presence and adds a practical reason for the pet to react.

Custom characters

Use a pet, drawing, or new idea instead of a fixed character pack.

Useful reactions

Connect movement to apps and supported AI-agent states.

No Shimeji import claim

Masko is an alternative desktop-pet experience, not the Shimeji engine.

A character you love

Bring a mascot you are proud of to life.

Start from an idea or choose a character you love. See it move, react, and live on your Mac.

Proud introduction

Meet Ko.

My desktop companionThe one I want beside me.

Find the character you are proud to keep beside your work, then give it useful reactions of its own.

Find yours ↗

Keep exploring

Questions

The practical bits.

Is Masko a Shimeji app for Mac?

Masko offers a similar idea of a character living on the desktop, but it is a separate Mac app and does not import Shimeji character packs.

Can the desktop pet be my real pet?

A photo of your pet can guide a new Masko character.

Does the pet walk over other windows?

The mascot lives above normal desktop windows and can be positioned as part of your workspace.

Does it do anything useful?

Yes. It can carry companion apps and show states from supported AI agents.

Which Macs can run Masko?

Masko Desktop supports macOS 14 or newer.

Masko for Mac

A desktop pet for your Mac, made useful.

Download your desktop pet

macOS 14 or newer. Start free with Ko.