NewThe AI Store is open

An AI companion that lives on your PC.

Talk or type like you would to a friend. Thayln plans your day, remembers what matters, reads your files and runs your PC by voice. Your chats never leave your computer.

Free to startRuns on your PCNo ads, ever
ThaylnSearch chats, apps and settings…

Good afternoon, Alex

3 things on today, next is Product review at 2:00

What’s on today?
Used Calendar

Three things. I’d send the investor deck first while it’s quiet.

13:30Lunch with Sam
14:00Product review
17:00Call Priya
Call Priya at 5:00Reminder · on this PC
Nothing left this PCAnswered by Thayln’s own AI
Works with the calendars, email and apps you already use
CalendarEmailPhotosMusicFilesSmart home
What it does

One companion for your whole day

Everything you’d ask a helpful friend, done on your own PC.

Plans your day

Ask what’s on, move things around, and it tells the people involved.

Today3 calendars
13:3013:00Lunch with SamGoogle
14:00Product reviewOutlook
17:00Call PriyaReminder

Remembers what matters

So you never say it twice. See, fix or forget anything.

Prefers short, direct answers
Has lunch with Sam most Fridays
Is learning Spanish

Reads your files for you

Open a document and get a summary, the parts that need you, and the key sections.

Thayln’s summary

Nearly ready. Fix two typos and swap the cover before it goes out.

1“Q3” should say “Q4”2The cover is the old photo

Just talk

Say “Hey Thayln” from across the room. It hears you on the PC.

“Hey Thayln, move lunch with Sam to 1:30.”

Runs your PC by voice

Volume, apps, tabs, music. Done straight away.

“Volume down”“Open Word”“Next song”“Close the YouTube tab”“Lock my PC”

Shows your time together

Streaks, when you talk most, and what you ask for.

99min this week
4-day streak
Privacy

Your things stay on your PC

Thayln runs its own AI on your computer. Your chats, memories, photos and files are kept there, and we never see them.

  • Nothing you say leaves your PCUnless you choose a cloud AI with your own key, and then it asks first.
  • You can see everything it remembersFix it, forget it, or turn memory off.
  • No ads, no selling, no trackingWe make money from Plus, not from you.
  • Apps ask before they see anythingAnd never see your chats, memories or vault.
Your PCPrivate
ChatsMemoriesPhotosFilesVaultVoice
Thayln’s own AIAnswers right here
Your Thayln accountPlan, devices, “is my PC online?”. Never what you say.
AI Store

Teach it new tricks

Built-in apps, plus the services you already use. Every one asks before it sees anything.

Browse the AI Store
VaultYour passwords, locked away on your PC
Built in“Log me in”
ScribeTalk and it types, in any app
Built in“Start dictating”
RoutinesSeveral things at once, by name
Built in“Good morning”
WeatherForecasts for your day
Connect“Umbrella today?”
For developers

Build for Thayln. Sell in the AI Store.

Make an app that talks, put it in the AI Store, and keep 70% of every sale.

Describe it. Thayln builds it.

Say what you want in your own words. Thayln writes the whole app, with its screens, backend and database, and shows you what it’s allowed to do before anything is installed. Change it by saying what to change.

A habit tracker with daily streaks and a weekly chartBuild it

Or build it yourself

A full app with its own screens, backend and database, using the internet and the person’s AI only with their permission. Or a voice app: people just ask, and your server answers through Thayln.

1BuildWith the AI builder or the developer kit
2TestOn your PC, in a locked-down space
3ShipSubmit to the AI Store for review
// Someone says “when is high tide at Bondi?”
POST your endpoint
{ "app": "tide-times",
  "text": "when is high tide at Bondi",
  "locale": "en-AU" }

// You reply, Thayln says it and shows a card
{ "speech": "High tide at Bondi is 4:12 PM.",
  "card": { "title": "Bondi", "text": "High 4:12 PM" } }

Only the sentence meant for your app is sent, never the rest of the conversation.

Free or paidFree apps list at no extra cost. Paid apps and subscriptions go through the AI Store.
You keep 70%Thayln keeps 30% of each sale, and 15% on an app’s sales above US$1M in a year.
Every app is reviewedIncluding the permissions it asks for.
Developer membershipFree during early access, then US$49 a year to publish.
Getting started

Set up in about two minutes

1

Download Thayln

One installer for Windows. It checks what your PC can run.

2

Make it yours

Give it a name, pick a voice and a style. Warm friend, calm coach, playful or straight talker.

3

Say hi

Talk or type. It gets to know you as you go.

What your PC needs

Runs on the PC you have

Without your own key, everything runs on your PC: the AI, the speech and the voice. Thayln checks your PC and picks the AI that fits.

MinimumRecommendedSweet spotBest
AI it runsLiteBalancedStandard
SystemWindows 10 or 11, 64-bitSameSame
Memory8 GB16 GB16 GB or more
Graphics cardNot needed6 GB of its own memory8 GB or more
Processor4 cores6 or more cores6 to 8 or more cores
Free spaceAbout 10 GBAbout 15 GBAbout 20 GB
  • The AI downloads once, during setup. About 1.3 GB for Lite, 2.7 GB for Balanced or 5.7 GB for Standard.
  • Speech is a second, smaller download, only if you want to talk. Typing works without it.

Using your own key with Plus? Then any recent Windows PC will do.

Pricing

Free to start. Plus when you want more.

Free

$0forever

Everything you need, on your PC.

  • Thayln’s own AI on your PC
  • Voice, chat, memory and planner
  • Photos and files, with summaries
  • Free AI Store apps
Download free
Founders offer

Plus Founders

$25 a month on release

$12.79USD a month, billed yearly

$153.50 for the year, 20% off month to month. Cancel any time.

Introductory price for your first year. After that, Plus may move to the higher plan. We’ll tell you well before anything changes.
  • Everything in Free
  • Use a cloud AI with your own key, or your own server
  • Chat with your PC from your phone or any browser
  • Plus apps in the AI Store
  • Backups to move to a new PC
Get the Founders price
Questions

Good to know

Yes. Thayln’s own AI runs on your PC, and your chats, memories, photos and files are kept there. Your account only knows things like your plan and whether your PC is online.

Didn’t find it, or want something Thayln doesn’t do yet? Request a feature

Say hi to your new companion

Free for Windows. Set up in two minutes.

Download for Windows