A little cat that lives on your screen.

Meet Peak, a cheerful golden chibi cat. It reacts when you stroke, poke or carry it, says short lines in Vietnamese or English, and keeps you company. Free and open source, for Windows.

Peak runs on Windows 10/11, so this device cannot install it. Send the link to your PC and download it there. Download the .exe anyway

First official release (0.2), Windows 10/11 only. The installer is not code-signed yet, so SmartScreen will warn: choose More info, then Run anyway. The Claude and OpenAI brains have not yet been tried with real keys (Gemini has).

Try it: move the mouse near Peak, click it, or pick a pose.

A companion, not an assistant

Lovable with no AI at all. Bring your own key if you want it to chat.

🐈 Alive without AI

A mood and closeness model, 182 hand-written lines per language, quiet hours, and no guilt: it never dies or starves, it only gets a bit lonely.

πŸ‘† Gestures, not buttons

Sweep over its head to scratch, over its belly to rub (it usually loves it; sometimes it is a trap), click to poke, drag to carry it. Its eyes follow your cursor when it is over the pet.

🧠 Bring your own brain

Add your own Gemini, Claude or OpenAI key and double-click to chat. It answers in the language you write in, and each answer comes with a feeling the pet acts out. Your key stays on your computer.

πŸ’­ Remembers a little

A name for the pet (you choose; after a day or two it asks), what to call you, a usual part of the day, milestones, and, if you have a brain, a few short facts from your chats (you can switch that off). You can see, edit or forget all of it in Settings, Memory.

🀫 Polite

Quiet in fullscreen apps, during quiet hours and in Quiet mode. Never takes keyboard focus for plain speech.

πŸƒ Light

About 100 to 120 MB of memory and almost no CPU while it stands still (measured on one machine so far).

πŸ”„ Updates your way

It can install updates automatically when you are idle, ask first (the default), or never check. It can also start with Windows (off by default; it asks once, politely).

πŸ’š Free and open source

The app costs nothing and the code is under the MIT license. An AI brain is optional and billed by the provider you choose.

How to play with Peak

Sweep the cursor over its headScratch: it is happy and gets closer to you
Sweep over its bellyA belly rub: bliss, or sometimes a playful trap
Click onceA poke
DragCarry it; it lands with a little squash
Double-clickOpen the chat bubble
Right-click it, or the tray iconSettings, Quiet mode, Quit

Install in three steps

  1. Download Streakboom_<version>_x64-setup.exe with the button above, or from the latest release.
  2. Run it. If Windows says "Windows protected your PC", choose More info, then Run anyway. It installs for the current user only, with no administrator rights.
  3. Peak appears on your screen and shows a short tour. To remove it, use Windows Settings, Apps.

Windows needs the WebView2 runtime; the installer downloads it if it is missing.

Your data stays yours

Questions

Is it really free?

Yes. The app costs nothing and the code is under the MIT license. An AI brain is optional and is billed by the provider you choose (Gemini has a free tier; Claude and OpenAI are paid).

Why does Windows warn me when I run the installer?

The installer is not code-signed yet, so SmartScreen does not recognise it. Choose More info, then Run anyway. The source is public in the GitHub repository.

Do I need AI or an account?

No. Peak is lovable without any AI and there is no account. If you add your own key, it can also chat and remember a few things about you.

Does it work on Mac or Linux?

Not yet. It is Windows 10/11 only for now. A macOS version is an open idea with no date.

How do I get updates?

Peak can update itself: install automatically when you are idle, ask first (the default), or never check. Updates are signed and only installed if the signature checks out. If you have an old development build (0.1.x) that does not update itself, install the latest release once by hand; after that it updates normally.

Which AI brains work?

Gemini, Claude and OpenAI are all built in; you bring your own key. Gemini has been tried with a real key. The Claude and OpenAI brains have not yet been tried with real keys, so they may still have rough edges. A Claude Pro/Team or ChatGPT Plus subscription does not include API access; the API is billed separately.

Is there a limit on chatting?

Yes, a daily cap protects your provider's quota and your spending: 60 chat messages and 6 unprompted lines a day. When Peak has talked enough it says so in its own words, with no numbers, and the count resets at midnight.

Latest updates

Pulled live from GitHub Releases. Release notes are in English.

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