Miso — welcome
New · for macOS

A tiny cat that lives on top of your windows.

Miso is a pixel cat for your Mac. It naps on title bars, rides the windows you drag, holds your files, plays fetch — and keeps perfectly still while you work.

€7, onceNo subscriptionmacOS 14+Apple silicon & Intel

Miso
What it does

Everything a desk cat should do. Nothing it shouldn't.

It's alive enough to love and quiet enough to forget. Every card below is a window, so the cats up top can come down and stand on them.

ledges.app

Your windows are its furniture

It finds the top edge of every window on screen and treats it as a ledge. It walks along title bars, hops from one to the next, and climbs down to the Dock. Drag the window it's sitting on and it rides along. Close it, and it drops to whatever's underneath.

physics

Pick it up. Throw it.

It goes wide-eyed when you grab it and flies off with your cursor's real momentum. Hard landings bounce. Throw it really hard and it flops on its back for a second. It's fine. It's a cat.

shelf

Hand it a file

Drag anything from Finder onto the cat and it stands up and holds it. Drag it back off its paws when you need it. A shelf with whiskers.

fetch

Fetch, for real

Throw a ball and every awake cat races for it. The winner carries it back to your pointer, drops it at your feet and waits.

household

A whole household

Up to seven cats at once. They greet each other, copy each other, swat each other, and pile up to sleep.

helpers

Small, useful, opt-in

Reminders arrive in person: the cat walks over and sits by your cursor. Click Done and it's gone.

  • Water, stretch, eyesGentle nudges, on your schedule.
  • Focus sessionsIt curls up with a timer and holds every reminder.
  • Screenshot catcherRuns to the corner and brings it back.
  • Late-night nudge“It's late. I'm turning in.” Said once.
  • Low batteryIt lies down. “Running low — me too.”
  • Clipboard shelfCopy something, and it can hold that too.
mood
Hunger
Energy
Joy

Moods, not demands

Hunger, energy and joy drift through the day and steer what it does. Neglect makes it sleepy and a little sulky; one click fixes it. It can't die, can't run away, and never begs. Set each cat's mood:

home

Beds, boxes, bowls, rooms

Put down a bed and it'll find it at nap time. Furnish a whole little room and watch everyone move in. Drag anything into the corner to put it away.

meetings

Hide for a while

Screen share in two minutes? Everything goes out of sight for half an hour, an hour, or until you call them back.

privacy

Private by design

It reads the bounds of your windows, never their titles or contents, so macOS never asks for Screen Recording.

0permission prompts
0accounts
0analytics
<1%CPU at rest
welcome tour

A tour that does things

On first launch a cat walks in and offers a one-minute tour. Every button in it does what it says. “Throw a ball” throws one. “Call my friends” brings two cats running in. “Set one up” furnishes a room and sends everyone to explore it.

  1. Pick me up, then put me somewhere.
  2. Throw a ball and watch who gets there first.
  3. Hand me a file and I'll hold on to it.
  4. Call my friends, because more cats is more fun.
  5. Set up a room, so we have somewhere to live.
Quiet by default

It knows when you're busy.

The cat gets calmer the harder you work. Typing, it settles and watches. Leave the mouse for a while and it loosens up. Walk away and it goes home to sleep. No macOS permissions needed: it only looks at when you last pressed a key.

TypingSits on your window and watches. Maybe grooms.
ActiveWanders, hops between windows, peeks out from behind one.
IdlePlaytime. Chases the cursor, climbs, pounces.
AwayGoes home to its bed and curls up until you're back.
Untitled — try typing
A day with Miso

Mostly asleep. Always nearby.

Real cats sleep through half the day. So does this one: about 40% of its time on screen, mostly at noon and at night. Here's the day it's built around.

Scroll sideways →

morning
08:55

You open the laptop. It wakes at its bed, stretches, pads along your first window and sits facing you.

Morning.
deep work
09:00

You're typing. It sits on top of your window and watches. Grooms once. Nothing else for ninety minutes.

water
10:45

A reminder's due. It walks to your cursor and sits. You click Done; it does a small happy and leaves.

Water?
lunch
12:20

Ten minutes without input. It walks home, curls up, and naps through the early afternoon lull.

focus
16:00

A focus session. It curls up with a timer and holds every reminder. At the end, a stretch and a dance.

Done — take a break.
evening
19:00

You're just browsing now, so it's playful again. You toss a ball. It pounces and brings it back.

night
23:30

Still working? It yawns, says so once, walks home and sleeps. Try the lights switch up top.

It's late. I'm turning in.
The cats

Twenty-five cats. Pick yours.

Two families of hand-drawn pixel cats, each with a temperament of its own: lazy cats nap twice as long, curious ones follow you from app to app. Tap one to bring it onto this page.

There are 3 cats on this page. Seven is the most any household holds; after that, someone goes home.

<1%CPU while it naps
0permission prompts
0bytes sent anywhere
25cats to choose from
€7once. No subscription.
Questions

Good questions, answered.

Does it need any permissions?
No. Miso reads where your windows are, not what's in them, so macOS never shows a Screen Recording prompt. The screenshot catcher is the one helper that asks for anything, and it's off until you turn it on.
Will it slow my Mac down?
It uses under 1% of CPU while resting, drops to 10 frames a second when nothing's moving, and never wakes a ProMotion display to 120Hz just to draw a sleeping cat.
Can I hide it during meetings?
Right-click any cat and choose Hide for a While: 30 minutes, an hour, or until you bring them back from the menu bar. Everything goes: cats, toys, beds and rooms.
Does it work with Spaces, full-screen apps and Stage Manager?
Yes. It follows you across Spaces, gets out of the way of full-screen apps, and knows about Stage Manager and the Dock, which it will sit on.
Is it a subscription?
No. It's €7, once, for all your Macs. No account, no in-app purchases, no ads.
What about Windows, or iPhone?
Miso is Mac-only; it's built around how macOS draws windows. A pocket-sized cat for iPhone, which lives in the Dynamic Island, is in the works.
Install Miso

Give your windows a cat.

€7, once. It takes ten seconds to install and less than that to fall for.