Underdog
Memory you can inspect.
Saved memories stay on your Mac. See, edit, or delete them in Settings.
The most
loyal AI.
100% local AI. 100% private.
come on.
I’ll show you.
Scroll to walk with meI’ll show you.
I’m Underdog.
I’m a small but mighty AI model, trained to help you.
I run on your computer, not in a data center. Your data stays private.
Less than 4GB on your computer.
I’m loyal. And a good boi.
02 Browser
Give me
an errand.
I use your 
browser to book flights, reserve tables, order groceries, shop, and cancel forgotten subscriptions. You approve before I book, buy, or cancel. Take over any time.
I’m very good at fetch.
03 Email
Fast email.
100% private.
I connect directly to your 
Gmail and 
Outlook. Your credentials are stored securely on your computer.
EC⌘KMade for your keyboard.
Your inbox. Your computer. Your business.
04 Meeting notes
You talk.
I take notes.
Fully private meeting notes, transcribed and summarized on your device. Underdog never sends your audio or notes to a data center for processing.
All ears. Every little detail.
05 Dictation
Speak
anywhere.
Underdog turns your voice into words, faster than you can type, in any app. Your audio is transcribed on your device, never streamed to a data center.
Your voice. Your words. Your computer.
06 Calendar
Fast calendar.
Fully private.
I find free time, flag conflicts, and prepare events for your approval. I connect directly to your 
Google Calendar and Outlook Calendar.
Your week. Your way.
07 Sensitive tasks
Sensitive tasks.
Protected.
Doctor’s appointments, prescription refills, tax paperwork. I find what you need and get the next step ready for your approval. Your information can’t be used to train AI models. It’s all on device.
Your details. Your next step. Your say.
08 He protec
He protec.
He attack.
He got your back!
I track down your personal information on data-broker sites and send removal requests. Less of you out there.
A good boi on guard.
09 ALWAYS ON YOUR SIDE
Your life
stays yours.
I run on your computer. Mail syncs directly with your provider. Messages and bookings you approve go to their intended recipients or websites.
Close to you. Private by nature.
AT HOME, ON YOUR COMPUTER
MailNotesCalendarVoice
Private by nature. Local AI · No cloud AI serviceSTILL THE SAME SMALL, MIGHTY DOG.And the rest
more tricks on the way.
And the rest
of my tricks.
more tricks on the way.100% local intelligence.
Summaries, drafts, and answers come from a model running on your computer. Your content isn’t sent to a cloud AI service for processing. Underdog’s models are trained to be fast, power efficient, and mighty on your computer.
Guards the door.
Keeps you safe from remote images, scripts, and tracking pixels — stripped on sight.
Tracks your expenses.Coming soon
Receipts out of your inbox, into a ledger, with nothing to file.
Does your taxes.Coming soon
Every W-2, 1099, and receipt he already saw, sorted into a return you only have to sign.
Protected where he sleeps.
Every account gets its own AES-256-GCM vault. The key lives in Apple Keychain, secured by the Secure Enclave, and never leaves the device — Underdog curls up on top of it.
BEFORE YOU BRING ME HOMEQuestions,
Questions,
answered.
Which AI does Underdog use?
Our own. We are training models that are fast, power-efficient, and small but mighty — built to run on your computer. He may not top the leaderboards, but he is 100% yours: AI processing runs on your computer, without sending your content to a cloud AI service.
How does my email sync?
Mail syncs directly between your computer and your email provider. Your AI processing happens privately on your computer.
What stays on my device?
AI processing happens on your computer, where Underdog stores your recordings, notes, and transcripts. Mail syncs directly with your email provider. Messages you send and bookings you approve go to their intended recipients or websites.
What does Underdog need to run?
A Mac with Apple silicon for the local AI. iPhone and iPad, Windows, Android, and Linux are coming — tick the ones you want and we’ll send one email per build when it ships.
When can I adopt him?
Today, if you have a Mac with Apple silicon. Download Underdog. For every other device, pick yours below and we will send one email when that build is ready — nothing more.
GOOD DAYS START WITH A GOOD DOG.
Bring me home.
Fast email. Calendar. Meeting notes. Dictation.
Your own AI. 100% private. On your computer.
And I’ll run your errands, too.
your new best friend.
Waiting for another device?
iPhone, iPad, Windows, Android, and Linux. Pick your devices and hear when I’m ready.
loyal means loyal
Aligned with you — not advertisers, not an AI lab. You.
Underdog may not be the biggest model in the pack — just underrated and mighty. He listens, he remembers, he tries his best. His AI runs on your computer. Your content isn’t sent to a cloud AI service for processing. Mail syncs directly with your provider; messages you send and bookings you approve go to their intended recipients or websites. Local AI. Loyal to you.
