Lanson Flow
Lanson Flow
Now on the App Store

Lanson Flow — Stop typing, keep thinking.

Speak naturally — Lanson Flow turns your words into clean, ready-to-use text right inside the apps you already use.

Lanson Flow
110+ languages
🇬🇧English🇪🇸Spanish🇮🇹Italian🇫🇷French🇩🇪German🇯🇵Japanese🇰🇷Korean🇵🇹Portuguese🇷🇺Russian🇻🇳Vietnamese🇹🇭Thai🇳🇱Dutch🇸🇦Arabic🇨🇳Chinese🌍100+ languages
Works in any app110+ languagesUnderstands your context
Lanson Flow philosophy · pure expression

Forget language.

Forget the posture you are supposed to speak with, forget whoever you are playing right now.

Just speak — Lanson Flow understands what you truly mean, in every moment.

No presets
Tone & persona

Forget tone and posture

No adjusting your stance before you speak, no presetting a rigorous, formal or likeable filter, no playing a role in conversation. Be your real self — natural breathing is the most precise rhetoric.

#NoEmotionalMask#NoTonePresets
Mix freely
Languages & boundaries

Forget languages and borders

Thought has no fixed grammar. No translating in your head, no jumping between input methods. Chinese mixed with English, native slang poured out freely — Lanson Flow understands seamlessly and writes naturally.

#FreeMixing#CrossLanguage
Any length
Length & rhythm

Forget length and pacing

No word limits, no drafting before you start. From a three-second fragment of inspiration to a ten-thousand-word flowing monologue — start anytime, pause anytime.

#Fragments#LongFlow

"We don't preset any tone, restrict any language, or care about any length — forget it all. Just speak — Lanson Flow understands what you truly mean, in every moment."

Smart Q&A · keeps evolving

What if it doesn't understand?

No worries — you can voice your complaints straight to the keyboard, and it understands you better next time.

Try a scenario:
Voice-feedback to the keyboardJust speak · no settings to dig through

"Hey, that last line was way too formal — I'm chatting with a friend, why does it read like an official memo!"

Lanson Flow understands & evolves instantlyRemembers each contact's preferred tone

"Done! Switched to a relaxed, easygoing tone between old friends, and I've remembered your tone preference in this chat window. Next time just speak — it will feel right."

Human Story

Thoughts don’t happen at a desk.

Neither should writing.

Walking outdoors

On the sofa with an idea

Between meeting rooms

A new habit of writing

Inside the App

One voice. Every place you write.

Speak in one language.

Write in another.

Your thought stays the same. Only the language changes.

To:Sarah Jenkins
“周二碰一下就行,整体已经很顺了。”

Everything feels completely seamless. Let’s do a quick sync this Tuesday to wrap it up.

Direct TranslationEnglish (US)
Translate across languages

Five minutes or an hour.

When you stop,

it’s already written.

Zero Waiting Transcription
20-Min BrainstormReady instantly
Client-side buffer processing architecture...
45-Min Keynote Sync0s Post-Wait
Done the moment you pause.

Keeps pace with thought, not eyes.

Ready when you finish

Just say what you mean.

The rest falls into place.

Spoken Casually
"Tell Alex launch delayed to Friday, need to QA payment."
A Message
"Hey Alex — moving launch to Friday. Need extra QA time on payments."
An Email
"Hi Alex, to ensure payment security, we’ve shifted release to Friday."

Forget the format. Say what you mean.

Tone falls into place

As context grows,

the right words fall into place.

Real-Time Disambiguation
SOUND-ALIKE RESOLUTIONLOCKED
Tomorrow’s board meeting slide deck.
Understands corporate meeting, not bored room.
ENTITY CONTEXTLOCKED
Visiting partners in Cupertino at Apple.
In Cupertino, Apple means tech, not fruit.

Not post-editing. Solved while speaking.

Right words, locked in

" Lanson Flow is a voice keyboard built for minds that think faster than they type. "

Just say what you mean.

The rest falls into place.

Spoken Casually
"Tell Alex launch delayed to Friday, need to QA payment."
A Message
"Hey Alex — moving launch to Friday. Need extra QA time on payments."
An Email
"Hi Alex, to ensure payment security, we’ve shifted release to Friday."

Forget the format. Say what you mean.

Works in any app110+ languagesUnderstands your context
Voice-first input

Type less. Say more.

Lanson Flow lives in your keyboard — your voice lands right where the cursor is. Flow finishes writing while you’re still speaking, so when you stop, it’s already written.

Everywhere

Speak anytime, anywhere

Messages, email, notes, search, docs, AI assistants, social apps — anywhere a keyboard can appear, Lanson Flow is there.

Natural

Just say what you mean.

Tone and format adapt quietly to where your words are going — no presets, no posturing. The rest falls into place.

Multilingual

Speak one language, write another

Your thought stays the same. Only the language changes — speak in the language you think in, and have the text land in another, across 110+ languages.

Context

As context grows, the right words fall into place.

Names, entities and sound-alikes are locked in real time — solved while speaking, not by post-editing.

Built for the way you write.

Voice input designed from the ground up.

Speak anytime, anywhere

Use Lanson Flow in any app that raises a keyboard — text lands right at the cursor.

Talk the way you always talk

Lanson Flow shapes spoken language into readable text while keeping what you truly meant to say.

Speak one language, write another

Natural speech in, native-level text out — 110+ languages supported.

Centered on your context

Semantic correction and preference memory reduce how often you need to revise.

Keep on thinking

Messages, email, ideas, prompts, long-form thoughts — say them instead of stopping to type.

Clean, ready-to-send text

Lanson Flow outputs finished text you can send as-is, not a raw transcript that needs editing.

Trust & Privacy

Your words are yours.

Specific architecture, not generic promises.

Audio Discarded Immediately

Transcribed in volatile memory and destroyed. No voice recordings are retained on any server.

Zero Model Training on Your Text

Your thoughts and messages are never used to train public foundation models.

Verifiable Privacy Architecture

Free for everyone · generous quota

Start using Lanson Flow on all your devices, anywhere.

Lanson Flow is free to use, with quota that comfortably covers daily writing and conversation — phone, tablet and Mac working in concert.

iPhone

A voice-input keyboard that fits your everyday apps.

iPhone download QR codeScan to install
Download on the App Store

Free on the App Store

iPad

The same Lanson Flow on the bigger canvas of iPad.

iPad download QR codeScan to install
Download on the App Store

Works on iPhone & iPad

Available now

Mac

Seamlessly summoned from the macOS menu bar and any input field across the system — immersive voice input.

Native macOS clientApple Silicon
Download for Mac

macOS 14+ · Apple Silicon

Stop typing, keep thinking.

Download Lanson Flow and bring voice to every place you write.

Stay in flow · move with the new

On the frontier of realtime speech and AI-intent input

Subscribe for weekly Lanson Flow updates, hands-on Cookbook recipes and deep dives into speech-interaction context.

Core technology

Explore the technology

A closer look at how Lanson Flow handles input, streaming concurrency and the design philosophy behind it.

View full architecture
Unified content layer

Product family

From capture, to understanding, to engagement — always driven by the Voice Context Layer.

Lanson Flow 01 · Capture

Lanson Flow

Short-audio input for ad-hoc expression. Speak anytime, write naturally across 110+ languages — recording happens without you noticing.

flow.lansonai.com
Lanson Podcast 02 · Capture

Lanson Podcast

An offline creation studio for long-form conversations. Hours of recording settle instantly into rigorous structure, preserving the full thread of thought.

podcast.lansonai.com
Lanson Live 03 · Understand

Lanson Live

Real-time audio streams for multi-device interaction and simultaneous interpretation. Subtitles lock in steadily, character by character, instantly understanding every live moment.

live.lansonai.com
Lanson Reception 04 · Engage

Lanson Reception

Two-way interactive voice, face to face. Sub-second agile responses for calm, natural interaction in real settings.

reception.lansonai.com