Your voice, understood — privately, on your Mac.
Two Mac apps that turn speech into text in real time. Dictate into any app, or translate live meetings so everyone understands each other. Everything runs on-device — nothing ever leaves your machine.
Speak naturally. Write instantly.
Hold a key, speak, and your words appear in whatever app you're using — email, docs, chat, code.
Private by default
On-device Whisper transcription. Your audio never leaves your Mac — no cloud, no account.
Instant
Metal-accelerated on Apple Silicon, so text appears the moment you finish speaking.
Works everywhere
Any text field, in any app. If you can type there, you can talk there.
28+ languages
English, 中文, Bahasa Melayu, Tamil, Hindi and more — with automatic detection.
Smart text
Teach it your names and jargon with custom vocabulary, and strip filler words automatically.
Hold or toggle
Push-to-talk while you hold a key, or tap once to go hands-free for longer dictation.
Understand every voice in the room.
Live translation and captions for multilingual meetings — so both sides follow every word, running entirely on your Mac.
🌏 Live translation, both ways
Auto-detects each speaker's language and translates as they talk — their words in your language, and your words in theirs.
👀 Translation-first
The translation is the big, prominent line. The original sits smaller underneath — there for verification, never in the way.
🎧 Hears both sides
Captures your microphone and the meeting audio from Teams or Zoom — each side colour-coded so you can tell who's in the room from who's remote.
Fully on-device
Apple Neural Engine for speech and translation. Private, free to run, and works on locked-down corporate networks.
Projector mode
One keypress fills a conference-room TV or projector with room-sized captions everyone can read.
Offline from first launch
Ships as a single signed app with the speech model bundled inside — install and go, no setup, no connection.
Knows who's speaking
Labels each speaker by their voice. Rename them once and the names stick for the whole meeting.
Sharper AI translation
Optionally connect an AI model like DeepSeek for more fluent, context-aware wording. Off by default, sends text only — never audio — and falls back to on-device automatically.
Real-time, low latency
Captions appear live as people speak and stay responsive even during fast, overlapping back-and-forth.
Your voice is yours.
Both apps process everything on your Mac. There's no cloud to trust, no account to create, and nothing to leak — which is exactly why they work behind a locked-down corporate firewall.
Built to be understood, everywhere.
KataFlo dictates in 28+ languages. KataFlo Meetings translates between them live — starting with the pairing global teams need most.
Talk. Think. Done.
Bring private, instant voice-to-text to your Mac — for your own writing, and for every meeting where languages meet.
Apple Silicon · Free to run · KataFlo needs macOS 14+, Meetings needs macOS 15+