a tiny typewriter
Its own paws tap the keys, the paper fills line by line, and the carriage slides home with a ding.
early access · windows & macOS
a little cat that lives on your desktop
Katto sits with you while you work. It keeps your day, your focus and your files in order, calms things down when it's all too much, and does zoomies when a long task is done. No AI inside, and nothing leaves your desktop.
try it →
· pick the cat up
windows 10 & 11 · macOS 12 and newer
katto's own moves
it notices what you do
Recorded straight from the app. Every coat, every cat.
flow
Type fast and its tail poofs, its eyes go big, and gold sparkles gather. Afterwards: a slow blink, maybe a sip of water.
a ball of yarn
Scroll down and it rolls away, unwinding. Scroll up and it rewinds. The companion bats it back.
carried by the scruff
Paws dangling, it swings with you and lands on its feet. Shake it, and it's dizzy for a moment.
a stretch, together
Reach out, lean forward, roll your shoulders, one deep breath. It shows you, one step at a time.
zoomies
A wiggle, a lap around its friend, a skid and a proud sit. Long jobs get two laps.
katto tv
three channels, all cat
A 90-second tour of everything Katto does, the two Kattos in tiny episodes, and Amazing Man and Toby at home. Pick a channel. The sound stays off until you turn it on.
inside katto
a whole little world behind the cat
Click the cat, and your day opens up.
the window on your list
rain, snow, day and night, right above your to-do
The top of your list is a little window onto the real sky: the hour, your weather, tonight's moon, and both Kattos on the sill. This is the app's own window, running right here. Go on, change the weather.
time
weather
each task you finish lights a star in today's constellation · tap a Katto to pet it · tap the sill for the yarn · tap the sky
tonight's sky
everything katto does
small, kind, and surprisingly handy
Built so the app asks less of you on hard days, never more. Kind to ADHD and autistic brains, and to anyone who has had a long day.
works with your coding tools
it knows when they're busy, done, or need you
If you write code, Katto can keep an eye on the tools you already run and tell you, gently, what they're up to. Katto itself has no AI inside, and if you don't use any of these, you'll never see this part.
thinking alongLittle dots while an agent works, and a name tag so you know which one.
needs youThe tag turns red and the companion hops. Tap it to jump straight to that app.
doneZoomies, a meow and a note. After a long job, the two cats boop noses.
while you were awayBack at your desk? One line tells you what finished and who's waiting.
focus comes firstDuring a focus block, the good news waits. "Needs you" still gets through.
one switch eachTurn any tool off and the cats ignore it. Uninstalling cleans up after itself.
katto's promises
gentle by design
we store nothingNo accounts, no cloud. Your list, notes, files and settings live on your desktop, and nothing is uploaded to us.
no AI insideKatto is drawn and built by hand. Nothing reads your screen, your files or your words to learn from them.
kind to busy brainsMade with ADHD and autistic brains in mind: soft nudges instead of alarms, one thing at a time, and quiet when the world gets loud.
never pushyNo streaks to break, no scores. It speaks up as much as you want, or not at all.
calm when neededLow-stim mode, reduced motion, hush. Every move can be switched off.
undo everythingEvery tidy can be put back. Clean-ups go to the Recycle Bin, never straight away.
early access
send us a message in a bottle
Katto opens its door a few people at a time. Write a little note, roll it up, and throw it into the sea.
- 1write your note and throw the bottle
- 2when the tide brings it in, we read every one
- 3a chest with your name on it opens, and Katto is inside
psst… tap the water.
your bottle is out at sea
When the tide brings it in, we'll write back with the key to your chest. Keep an eye on your inbox.