Hold
Hold to talk
Hold fn, say it the way you'd say it, let go. Your words land where your cursor is, in any app. No window to switch to, nothing to paste.
New from Perfstaq · Free during the beta
Speak it.Flow writes it.
Hold fn and talk in any app. Tap right ⌘and Flow writes the reply from what's on your screen and what it remembers. Everything runs on your Mac.
macOS 13 or later · Apple Silicon (M1 or newer)
MessagesRRahul Mehta
hey! how did the pilot go with the Bengaluru team?
really well, numbers look strong
amazing. can you send me the deck before Friday? and are we still on for Thursday 4pm?
Message
Hold and talkyour mic, your words
Tap to writewith context
The demo hears you in your browser only. The app transcribes on your Mac.
Works wherever you type
SlackWhatsAppGmailNotionLinearMessagesChatGPTClaudeCursorVS CodeGoogle DocsOutlookLinkedInFigmaJiraDiscordTelegramSuperhumanSlackWhatsAppGmailNotionLinearMessagesChatGPTClaudeCursorVS CodeGoogle DocsOutlookLinkedInFigmaJiraDiscordTelegramSuperhuman
Three keys
No app to open. Just keys.
Flow sits behind your keyboard. You never switch windows, copy or paste. Pick different keys any time in Settings.
Double-tap
Hands-free
Double-tap fn and keep talking for as long as you like, a long email, a spec, a voice note to yourself. One more tap and it's typed.
Tap right
Write with context
Tap right ⌘ in an empty box and Flow writes your reply from the thread you're looking at and what it remembers. At the end of a paragraph, it rephrases what you wrote.
Context is the whole point
It writes like you remember everything.
Flow keeps a private memory of what you see while you work: the email, the doc, the calendar, the chat. Tap right ⌘ and the reply uses the right names, numbers and next steps, without you looking anything up.
9:12MailRe: Pilot resultsRahul: can you share the deck before Friday?
10:40DrivePilot_v3.pdfConversion up 31% across the Bengaluru cohort
11:05CalendarThu 4:00 pmPilot review · Rahul Mehta
11:58Slack#growthAnanya: deck is final, v3 in the drive
Reply to Rahul · tap right ⌘
Rephrase
Write it rough. Tap once.
Put your cursor at the end of a paragraph and tap right ⌘. Flow rewrites just that paragraph in your voice, and fixes the facts on the way: the real number, the right file, the date you agreed.
hey so wanted to say the pilot went good i think and numbers are up a lot, will send stuff soon
used: Pilot_v3.pdfused: #growthused: Rahul's page
✓Added “Perfstaq” to your dictionary
PerfstaqBinwalaAnanyaHVACSoonicornGPT-4oRiyolinBengaluru
It learns your words
Spells your world right.
Your cofounder's name. Your product. The acronym your team invented last week. Flow picks them up from your screen on its own and gets them right the next time you say them. Remove any word and it never comes back.
Memory
Your day, remembered.
Flow keeps a quiet timeline of your work, a page for each person you talk to, and a list of what you promised and what you were asked. Search all of it in milliseconds.
Perfstaq Flow · Memory
Today · 6h 52m on screen
12 PM 41m
- Rahul asked for the pilot deck before Friday
- Ananya sent proposal v2 for review
11 AM 58m
- Shipped the landing fix, blog 404 still open
10 AM 52m
- Reworked pricing page and the Starter plan copy
Rahul Mehta
- Oct 15: asked for the pilot deck before Friday; you said “sure, will do”.
- Oct 14: pilot review booked for Thursday, 4:00 pm.
- Oct 12: discussed the Growth plan for his team of 12.
Open loops
They askedRahul Mehta
Send the pilot deck before Friday
You promisedAnanya Rao
Review proposal v2 by Thursday
Private by design
Your screen never leaves your Mac.
Flow sees a lot so it can help a lot. That's exactly why none of it goes anywhere.
Speech stays on your Mac
Dictation runs on a speech engine inside the app. It works offline, on a plane, with Wi-Fi off.
Memory stays on your Mac
What Flow remembers is a private database in your Library. Nothing is uploaded, nothing trains anything.
Secrets never get saved
Passwords, one-time codes, card and ID numbers are masked before anything is stored. Password managers and private windows are never read.
You hold the switch
Pause remembering in one click, delete any day, or turn the writer off. Flow never sends a message for you.
~1 ms
to remember a screen
~10 ms
to recall the right context
0
bytes of your screen uploaded
Stop typing everything.
Flow is free during the beta. Download it, hold fn, and talk.
macOS 13 or later · Apple Silicon (M1 or newer) · version 0.9 beta
01
Download
Open the file and drag Perfstaq Flow into Applications.
02
Approve once
Open Flow. If macOS asks, go to System Settings, Privacy & Security, and click Open Anyway.
03
Say hello
Allow the microphone and keyboard, then hold fn in any text box and talk.
Questions
Good questions.
What is Perfstaq Flow?+
Perfstaq Flow is a Mac app for writing with your voice. Hold fn to dictate into any text box, double-tap fn for hands-free, and tap right ⌘ to have Flow write or rephrase using what's on your screen and what it remembers.
Does Flow send my voice or screen to the cloud?+
No. Speech recognition, the writing model and memory all run on your Mac. Flow has an optional cloud speech mode if you add your own API key; it is off by default.
Which apps does it work in?+
Any app with a text box: Slack, WhatsApp, Gmail, Notion, Linear, Messages, ChatGPT, Claude, Cursor, VS Code, Google Docs, and the rest. It types where your cursor is.
How is it different from dictation built into macOS?+
Flow is faster to trigger, learns your names and jargon on its own, keeps a private memory of your work, and can write the whole reply, or clean up a paragraph you wrote, with the right context.
What do I need to run it?+
A Mac with Apple Silicon (M1 or newer) on macOS 13 or later. About 300 MB of space, plus about 2.5 GB if you turn on the local writer.
Why does macOS ask me to approve it the first time?+
Flow is in beta and not yet notarized by Apple. Open it once, then go to System Settings, Privacy & Security, and click Open Anyway. You only do this once.
Can I change the keys?+
Yes. In Settings, Shortcuts, pick any of fn, right ⌘, right ⌥, right ⌃ or right ⇧ for each action, with hold, tap or double-tap.
What does it cost?+
Flow is free during the beta.