The fastest way to build a second brain

Never repeat yourself to an AI again.

An AI with your full context stops being a chat box. Iroh keeps a living brain of your work, your people, and your decisions, then uses it: holding what you said you would do, and running the work you keep redoing.

The Iroh home screen greeting you by name, with Commitments and Jobs cards, the page you edited last, and the pages you touched this week.
Watch it work

Three things happen while you just talk.

Iroh builds your second brain.

Talk the way you actually would. Iroh files each piece where it belongs and wires it to everything it already knows, live, into one map you can open.

IndexVHG OverviewPeopleLocationsGoalsOperations

No folders, no tagging, no setup. You talk, and the brain that answers you is the one that was listening.

The landscape

Everyone has memory now. Iroh has a brain.

The question stopped being whether an AI remembers you. It is what the memory actually is: whether you can read it, whether it keeps itself current, and whether it is yours or the vendor's.

ChatGPT, Claude, Gemini

Chat assistants

What their memory is
Saves facts it decides are worth keeping, inside one assistant.

What that means for you
You cannot open it, correct it, or take it to another model.

Notion, Obsidian, Mem

Notes and PKM

What their memory is
Stores exactly what you type, in a structure you design yourself.

What that means for you
Nothing updates itself. Keeping it current is a second job.

Voice memos, Otter

Capture apps

What their memory is
Records and transcribes what you said.

What that means for you
Nothing files it, connects it, or answers a question from it.

Iroh

One brain, any model

What their memory is
Readable pages that stay current from the things you say in passing.

What that means for you
Open it, edit it, own it, and point Claude, GPT, or Grok at the same brain.

One brain, in pages you own, carried into every answer. And you choose who answers: Claude, GPT, or Grok, all reading the same brain.

None of the setup

Hours of setup, done in minutes.

Every other tool hands you an empty canvas and a second job: pick the templates, build the structure, file each note, keep the whole thing current. That is the work that makes people quit before they start.

Iroh does that part for you. You talk; it does the building, the filing, and the connecting, and keeps itself current from the things you say in passing. The brain you always meant to have, without the setup you never finish.

Every other toolIroh
  • Pick a template. Then a second one.Iroh shapes the structure around your actual life.
  • Build databases. Wire up relations.It connects everything for you as you talk.
  • Tag it. File it. Re-file it next week.No folders, no tags, nothing to maintain.
  • Fall behind. Feel guilty. Abandon it.It keeps itself current from the things you say in passing.
What it feels like

What living with Iroh feels like.

From a passing thought to a brain that knows you. A few moments from an ordinary week with your life finally in one place.

A home that knows you

The AI that actually knows your life.

Open Iroh and it greets you with your own context: what you are working on, what you decided last week, what is coming up. Ask the same thing in a blank chat box and you will type the backstory again. Iroh already has it.

Iroh recapping your week from connected health data: a day-by-day table of steps, distance, and active calories with a plain-language summary.
Any model you like

Your brain is not locked to one AI.

Claude, GPT-5.6, or Grok: pick who answers you, right in the composer, and switch whenever you want. The brain underneath does not change. Your memory belongs to you, not to whichever lab is ahead this month.

Choosing which model answers you in Iroh: Grok, Claude Sonnet, or either GPT-5.6 tier, shown over a brain update that just connected four pages, because the brain underneath is the same whichever one you pick.
Commitments

It holds what you said you would do.

Iroh reads back through your own brain and shows you what you have already committed to, in the words you used. You approve each one, and from then on they come up when they count, instead of surfacing three weeks late.

Iroh offering to read your brain and find what you have already committed to, with a note that you approve everything it finds.
Jobs

Hand over the work you keep redoing.

Read my brain, check the web, then write it up. Define that sequence once and Iroh runs the whole thing when you ask. Every app you connect becomes another step a job can take.

Building an Iroh job step by step: read a page of your brain, search the web, then write a brief, with more steps available as you connect more apps.
Say it once

Say it once. Remembered for good.

Speak a thought and Iroh files it into the right pages of your brain, creating new ones when it needs to. Thirty seconds of talking becomes memory that shows up in every answer after, without a folder, a tag, or a second ask.

Iroh acting on a spoken request, reading your current health data and the right page before it answers.
A graph that connects itself

Watch your brain connect itself.

Every note finds its place and links to what you already know. Each new connection is one more thing you will never have to explain to your AI again.

Iroh graph view: a dense, living constellation of connected pages spanning work, projects, people, and health.
Memory you can open

Your memory, in pages you can read.

Every fact Iroh knows lives in a real page you can open, edit, and export. Trackers, projects, people, decisions, kept current from things you say in passing. When you can read the memory, you can trust the answer.

An Iroh living document: a one-goal-per-day plan for the week, kept current as your brain updates itself.
Connectors

Connected to your calendar, Drive, and more.

Iroh does not just remember what you say. It reads your calendar, your Drive, even your health stats, and pulls the right file or the right meeting into the answer at the moment it matters.

Iroh adding a dentist appointment straight to your calendar from a spoken request, using a connected calendar.
One brain, not twenty places

Your life isn't fragmented. Your tools are.

A project here, a thread there, a doc you cannot find, notes in a third app. Every one of them sees its own slice and none of them sees you, so the integration work lands on you. Iroh answers from all of it at once, because it is all in one brain you can open.

Today
An AI projectYesterday's threadA dozen voice memosThat doc somewhereYour notes appRemindersA calendar inviteA folder in Drive

Eight places, none of them talking to each other.

With Iroh

One brain that already knows how all of it fits together.

Privacy

Your most personal brain, kept yours.

Iroh holds the details of your real life, so privacy is built in, not bolted on. The whole deal, in three lines.

Your brain lives on your device.

Your brain is 100% local to your phone, or your iCloud if you choose. If Iroh vanished tomorrow, it would still be yours and still readable.

No AI trains on your data.

A hard rule: the AI reads your brain to help you, but never trains on it. That is a contract we hold our providers to, not a setting you have to toggle.

Export or delete, anytime.

Your brain is plain markdown. Take it with you whenever you like, or wipe it completely. No lock-in, on purpose.

FAQ

Questions, answered.

Get started

Your second brain is one conversation away.

On iPhone, Android, and Mac. Talk for two minutes and you have a brain that remembers what you said, holds the few things that matter, and does the work you keep repeating. An assistant, not another chat box.