PetOS PetOS

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PetOS

Bring any character to life

A living companion for Windows and macOS. Grow together, interact naturally, and collect every character you love. Not a chat tab.

Download for Windows Download for macOS

If macOS says the app is damaged, run this in Terminal: xattr -cr /Applications/PetOS.app

Private by default No subscription Codex pets compatible Proactive chat Pomodoro timer Task history

Sign up free, start interacting now · Includes 100 Smart Points

Fetching the latest release…

PetOS Desktop
Runs locally
Meeting in 10 minutes

Mint remembered it for you

Proactive chat

Ready for the meeting? I can stay quiet while you prepare.

A real desktop moment: company, touch, and a timely reminder

Install. Meet your companion.

  1. Download

    Windows or macOS.

  2. Pick a pet

    Choose an official pet, explore Petdex, or import your own.

  3. Connect & bond

    Talk, pet, and bond — official AI is included, so you can start right away.

Alive enough to become yours

It approaches, reacts, remembers, and grows closer over time. Every character becomes a relationship, not a skin.

  • Talks, moves, reacts

    Starts chats, wanders the desk, answers your touch.

  • Mood & memory

    Every pet keeps its own mood and memories, locally.

  • Remembers what matters

    Exact time or countdown, multiple items, and completion history — all local.

  • Private by design

    Your data stays on your machine by default.

See it in the app

Adoption, reminders, focus timer, and settings — the same warm desktop UI you'll use every day.

PetOS v7.0.0 Check for updates
Log in
My pets Settings About
Adopt a pet
Mint On the desktop

Together for 1 day

  • Mint Intimacy Lv 1 Edit Rest Leave
  • Ginger Intimacy Lv 2 Edit On stage Leave
  • Doro & Gugu Gaga Intimacy Lv 0 Edit On stage Leave
  • Wangcai Intimacy Lv 0 Edit On stage Leave
Touch, pet, and wander — it reacts in every frame

A collection that grows with you

Keep one character close or collect many. Each has its own mood, memories, and bond with you.

  • Show or hide on the desktop
  • Mood and memory stay per pet
  • Edit and organize anytime
Adopt a pet
1 Official pets Refresh

Official pets from PetOS. Avatars load first; the full pack downloads only when adopted.

Ginger A warm, playful presence on your desktop. v2.0.0 Already have
Mint A lively companion with a gentle, curious spirit. v2.0.0 Already have
2 Get from Petdex Petdex site

Search and adopt community-made pets.

Search name or slug Search
Popular on Petdex 5,000 community pets
Doro & Gugu Gaga Community pet
Adopt
Squidward Community pet
Adopt
Xuan Gu Community pet
Adopt
Han Li Community pet
Adopt
3 Import from this device

Import a Codex pet: choose a folder with pet.json and sprites.

Import Codex pet pack
Adopt an official pet, discover Petdex, or import your own

Any character can come alive

Adopt from the official collection, discover community creations on Petdex, or bring in a character of your own.

  • Codex pet assets compatible
  • Official pets and thousands from the Petdex community download only when adopted
  • Import local pet.json + sprites
Hey, a little gentler! Click the character and see how she responds
Touch her once. She answers back.

Every click gets a response

Tap gently and the character reacts in the moment. Keep tapping and her expression, words, and movement change with her mood.

  • A different response to every touch
  • Words, expressions, and actions move together
  • Interaction shapes mood and your bond
24:58
Talk with me Pocket
Quiet company while the timer runs

Work hard. Rest well.

Start a 10, 25, or 50-minute focus session. Your companions stay quiet while the timer runs, then gently remind you to take a break.

  • 10, 25, and 50-minute focus sessions
  • No proactive chat while you focus
  • A warm break reminder when time is up
Reminder Your pet will remind you on this device
Upcoming 0 Done 1

No upcoming reminders. Create one below.

Remind me after

0hr 5min 0sec

Reminder

e.g. Drink water, submit the report… 0/50
Runs locally · No points used Close reminder Create reminder
Countdown or a set time, kept on your machine

New · Local reminders

Your pet remembers it with you

Create several reminders using an exact time or a countdown. Edit, delete, repeat, and review completed items without using AI or Smart Points.

  • Exact time and countdown modes
  • Multiple items with edit and delete
  • Local completion history for review
PetOS
Log in
My pets Settings About
Language

Applies immediately and is saved locally.

English
AI service

PetOS manages the AI service. AI actions use Smart Points.

PetOS official
Proactive company

Needs idle time; stays quiet during a bubble, sit mode, or a focus timer.

Allow the pet to speak first
Focus mode Pauses proactive chat and hourly chimes; chat, timers, and reminders still work.
Quiet hours

Default 22–8: no proactive talk or chimes; more resting.

Launch PetOS at login Starts in the background when you sign in; turn off anytime here.
Proactive chats on your schedule, quiet hours when you need them

Always there with you

Starts chats on your schedule, goes quiet when you need it.

  • Starts chats on a schedule you set
  • Quiet hours and sit mode
  • Softer presence during focus time

Simple, prepaid, yours

More moments together. No subscription.

PetOS stays free. Smart Points power official AI chats—top up only when you want more.

Starter Launch offer

$2.99(USD)

210 Smart Points +10 bonus

Regularly 200 points

A small top-up to keep the conversation going.

Get Smart Points Most Popular
Companion

$4.99(USD)

400 Smart Points

The comfortable choice for everyday company.

Get Smart Points
Closer Bond Best Value

$9.99(USD)

900 Smart Points

More conversations, more memories, better value.

Get Smart Points
Free desktop app One-time payment No automatic renewal

Sign in first. Your balance follows your PetOS account across Windows and macOS.

Smart Point usage varies with conversation length.

Questions, answered

How is it priced?

The desktop app is free to download and use, with no subscription. Chatting is powered by the built-in official AI and your Smart Points.

Do I need an API key?

No — official AI is built in. Just sign in and start chatting.

Where is my data stored?

Mood and memories stay on your machine by default. An optional account syncs points and pet slots only.

Which platforms are supported?

Windows and macOS, with download links above. Linux support is planned.

Does it interrupt my work?

No - during focus time it goes quiet. You control talkativeness, quiet hours, and sit mode.

In the works

More is coming for your companion — here’s what’s on the way.

  • More pets
  • Multiple pets together
  • Pet visiting
  • Pet diary

Install. Meet your companion.

A living companion for Windows and macOS. Grow together, interact naturally, and collect every character you love. Not a chat tab.

Download for Windows Download for macOS