Quattro — for Mac

Four tiny tools.
One quiet window.

Quattro lives quietly on your Mac. Hit a hotkey, ask anything, get a sharp answer. Track tasks. Check your calendar. Capture a thought — all without breaking your flow.

What? — AI answers Next. — tasks When. — calendar Dump. — quick notes
Now on the Mac App Store

7 days free · then $4.99/mo · Cancel anytime · macOS 14+

Everything you need. Nothing you don't.

Each tool pops out into its own floating window — or stays tucked in the sidebar. Your call.

Answer.
📌
what is the speed of light?
The speed of light in a vacuum, a universal physical constant denoted as "c," is exactly 299,792,458 metres per second. This value is used in various aspects of physics, including Albert Einstein's theory of special relativity, where it represents the ultimate speed limit in the universe.

The metre is officially defined by the distance light travels in a vacuum during a time interval of 1/299,792,458 of a second. While light travels at this constant speed in a vacuum, its speed can decrease when it passes through different mediums like air or water.
☰ Move to Next.
📅 Add to When.
Dump.
📌
Heading
New domain setup notes
Detail
Add more detail...
When.
Day Week Month
📌
May 2026 ‹ ›
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Sunday, May 17
10:00 am
Lex — Darren
Next.
Ship Quattro v1.1
Update App Store listing
Apple nomination
what is the speed of light?
The speed of light in a vacuum is exactly 299,792,458 m/s — the universe's ultimate speed limit.
What?
⌘N New ↵ to send
Next.
Ship Quattro v1.1
Update listing
Apple nomination
When.
Sunday 17 May
10:00
11:00
Lex — Darren
Dump.
New domain live — update Railway env vars, Resend sending domain, confirm all redirects

Three keystrokes to an answer.

Quattro lives quietly on your Mac. Summon it with a shortcut, ask anything, get a sharp answer. That's it.

1

Hit your shortcut

Press your custom hotkey from anywhere on your Mac. Quattro appears instantly — sidebar, centre screen, wherever you need it.

2

Ask, check, capture

Type a question in What?, tick off a task in Next., glance at your day in When., or dump a thought in Dump.

3

Done. Move on.

Got what you needed. Dismiss Quattro, copy an answer, or promote it straight to your task list or calendar. You never left your flow.

Small. Sassy. Smart.

Everything you need for a clear head. Nothing you don't.

💬

What? — instant AI answers

Hit your shortcut, type a question, get a sharp one- or two-sentence reply. No browser tabs, no rabbit holes, no preamble. Pop the answer out, copy it, or send it straight to your task list.

Next. — simple task list

A clean checklist that sits beside your work. Tick things off without context-switching to a separate task app. Ask Quattro something? Move the answer directly to Next. in one click.

📅

When. — today at a glance

Your calendar events for today, right there. Day, week, or month view. No more swiping over to Calendar.app every five minutes to check the next meeting.

📝

Dump. — frictionless capture

A no-ceremony notes pad in the same window. Catch a thought, a link, a half-formed idea — without breaking flow or opening another app.

⌨️

Custom keyboard shortcut

Set any hotkey — ⌥ Q, ⌘ Space, whatever. Summon the whole window from anywhere without touching your mouse.

🧠

Customisable AI persona

Not vibing with the default tone? Edit the system prompt in Settings to make What? respond exactly how you like — formal, casual, technical, blunt.

🍎

Native macOS — not Electron

Built with SwiftUI. Respects your system theme, uses native macOS materials and vibrancy. Feels right at home. Launches fast. Uses almost no memory.

🔒

No tracking. No ads.

Your questions stay between you and the AI. Quattro doesn't log, sell, or store your queries. No analytics SDKs. No telemetry. Clean conscience.

AI · Tasks · Calendar · Notes — all four, $4.99/mo.

Replace four separate app subscriptions with one quiet window. Unlimited use. No caps. Cancel any time.

$4.99
per month
  • What? — unlimited AI answers
  • Next. — built-in task manager
  • When. — today's calendar
  • Dump. — quick capture pad
  • Custom keyboard shortcut
  • Native SwiftUI · macOS 14+
  • All future updates · Cancel any time
Download on the App Store →

7 days free · then $4.99/mo · Cancel any time · macOS 14 Sonoma or later

Things people ask.

Quick answers to the questions that come up most.

Which AI does Quattro use?

Currently powered by Google Gemini 2.5 Flash. The model is chosen to balance speed and quality for short, sharp answers — no preamble, no padding.

Is my data sent anywhere or stored?

Your questions are sent to the AI provider to generate an answer, then discarded. Quattro doesn't log them, sell them, or train on them. No analytics. No tracking. No ads.

Does it work offline?

The interface does. AI answers need a connection. Next., When. and Dump. all work fully offline.

Will there be an iOS or iPad version?

On the roadmap. The Mac is the primary surface for now — that's where the keyboard-first flow shines. An iPhone companion comes once the Mac app is humming.

What's coming next?

A bigger update is in the oven for power users — same $4.99 subscription, much more capability. Subscribe via the App Store and you'll get every update as it ships.

How do I get support?

Email hello@askquattro.app. It's read by an actual human (the one who built the app), usually within a day.

An indie dev, a Mac, and one quiet idea.

Quattro is the AI companion I wanted to use myself — small, fast, native, and quiet. No chat sidebar that won't go away. No agentic monster trying to run my life. Just four tiny tools sharing one window, the way Mac apps used to feel.

I shipped it from Brisbane, Australia. If you've got feedback, ideas, or you've spotted a bug — please tell me. This is v1.0; v1.1 is already brewing.

— Darren