DOCS · PLANS & BILLING
One plan for the cockpit.
SynthOS is the AI operating system for a company of one, and there are two bills behind it that never mix. You pay your AI provider for the model’s thinking, on a key or subscription you already have — no markup from us. You pay SynthOS a flat plan for the cockpit: the app that turns that thinking into finished work on your Mac. Plans start from $19/mo and climb only as the work you hand it grows. This page is the complete, honest reference for the ladder, what a plan actually changes, and how to manage or cancel.
WHAT YOU PAY FOR
The cockpit, not the thinking.
Knowing which bill is which makes both predictable. The model’s thinking is billed by your provider, directly to you, on a key you supply. The cockpit around it — the operating system that does the work — is what your SynthOS plan pays for. They’re separate, so a busy week never moves your subscription, and your token bill never has our margin on top.
YOU PAY YOUR PROVIDER
The model’s thinking
Every token a model reads or writes — reasoning, drafting, reading your files, planning the steps — is billed by the provider on your own key, at the provider’s published rates. We never mark it up or meter it. That bill stays between you and your provider, on their dashboard and their invoice. Bring-your-own-key keeps the engine on your meter, not ours.
YOU PAY SYNTHOS
The operating system
Your SynthOS plan pays for the cockpit: the agents and the crew that run in parallel, the chat, terminal, and browser surfaces, the vault and its living graph, the receipts and approvals, and the updates. It’s a flat plan, independent of how many tokens you burn — your plan sets what the cockpit can do, not how much the model costs.
Every plan also carries a measure of included usage on top of the key you bring, so the app works the moment you open it. That allowance is quoted as a multiple of Core’s — never as a dollar figure, because what a dollar buys changes with the model you point it at. Put plainly: pay the provider for the engine, pay SynthOS for the car around it. The full bring-your-own-key reference is in Keys & Providers.
THE LADDER
Three plans, climbing with the work.
The ladder is built so capability and price move together: each step up widens the same cockpit, never swaps you into a different app. You start where you are and climb only when the work asks for it. Prices below are the monthly rate; yearly works out about two months cheaper over the year, and you can switch between them whenever you like. Below the three sits a fourth offer — the Founding seat, annual and finite.
The whole command center, running on your Mac — chat, terminal, browser, vault, receipts, and scheduling, none of it held back. Core gives you one vault and up to two agents at once, and a small allowance of included usage on top of the AI account you already pay for. It’s the entry plan, not a stripped one.
Everything in Core with more room to work: three vaults, up to six agents at once, voice so you can talk to the cockpit, about 3× Core’s included usage, and priority support. The plan for an ask that breaks into several pieces and wants them all moving at once.
Everything in Pro with the ceilings taken off: unlimited vaults and unlimited agents at once, about 8× Core’s included usage with priority model routing so your work is dispatched first, and dedicated support. For an operation running several ventures from one cockpit.
Not a step on the ladder but a seat beside it: the first 50 people to back SynthOS get every Pro limit, locked forever, for $299 a year — the price never changes for as long as you keep the seat. It is annual only, and when the 50th seat goes, the offer goes with it. The counter on the pricing page is live.
That is the entire ladder — there is no hidden tier above Ultra and no free plan below Core. Your plan sets the cockpit’s ceiling: how many agents run at once, how many vaults you keep, whether voice is on, how much usage is included, and how your work is routed. It never changes what the model costs — that is always your provider’s bill, on your own key.
WHAT A PLAN CHANGES
Five limits — and nothing else.
It’s worth being exact about this, because most software is vague about it on purpose. Moving up the ladder changes five things. Every other capability — the terminal, the browser, scheduling, the Forge, the vault, the guardrails — is the same on every plan.
How many second brains it can work from: one on Core, three on Pro, unlimited on Ultra. Separate vaults keep separate ventures or clients from bleeding into each other.
How wide a crew runs in parallel: two on Core, six on Pro, unlimited on Ultra. Beyond the limit nothing is dropped — the extra pieces queue and start as slots free up.
Talking to the cockpit out loud instead of typing. Off on Core, on from Pro upward.
The allowance that runs on top of your own key so the app works out of the box — small on Core, about 3× that on Pro, about 8× on Ultra. A multiplier, not a dollar figure.
Whether your runs are dispatched to models ahead of the queue. Ultra only. Support follows the same shape: standard on Core, priority on Pro, dedicated on Ultra.
# what is NOT plan-gated, and never has been: scheduled and # recurring runs, the terminal, the browser (reading and acting # alike), the forge, the vault and its graph, and every guardrail. # a bigger plan is a wider lane, not a different set of powers.
THE HANDOVER
Built by hand, in person.
The Handover sits outside the ladder entirely — a private, forward-deployed engagement rather than a subscription you configure yourself. It is applied for, not checked out: you book the call, and every term of the engagement — scope, payment, refunds — is agreed together before kickoff.
George forward-deploys to you, in person. He flies out and sits across the table with you and your team to learn how the business really runs and where your hours leak — then builds it with you by hand: a crew of agents shaped to your work and your voice, never a template.
He seeds your second brain and wires it in. Your files, your context, and your way of working go in so day one starts years ahead; he connects it to the tools and channels you already live in, and tunes the ask-first guardrails to your exact comfort.
A live handover, then 30 days at your side. You get an in-person handover, a recorded playbook made just for you, and a month of tuning as it settles in — so the thing that leaves with you is an operation that runs, not a folder of instructions.
Slots are severely limited and the engagement is scoped to your operation, so the figure above is where it starts rather than what it costs. The Handover page carries the current terms, what’s included, and the application itself.
THE OPEN DOOR
Pay with a post, not a card.
There is no free plan to sign up for, and no card-required trial either. What there is instead is an open door you can earn: post about SynthOS in your own words, and free access lands on your account by hand. Nothing auto-charges when it runs out, because there’s no card on file to charge.
SHARE IT
Post about SynthOS
Tell someone who’d genuinely want it — a real, public post on LinkedIn or X, in your own words, with the #ad disclosure. Then paste the link. There is no template to copy and no minimum follower count; an honest share is the whole ask.
VERIFIED BY HAND
We check it ourselves
A person reviews it, not a bot or a tracking pixel: that the post is live and public, that it’s actually yours, and that it’s genuinely about SynthOS. Usually within a day. That’s why there’s no card on file and nothing to cancel.
THE DOOR OPENS
One free day — then a month per 15,000 views
An approved post earns you one free day, once per account for the life of the account. From there it’s reach that pays: every 15,000 public views a post gathers earns one free month, and it stacks as the count climbs. We re-check the views periodically.
The honest shape of it: one free day is the welcome, and the months are earned by reach, not by signing up. It is not a fourteen-day trial, not a recurring free plan, and not everything-unlocked-forever — it is real access, granted by a human, for as long as you earned it.
GUARDRAILS
In every plan — never an upsell.
The safety of the cockpit is not a feature you pay extra for. The guardrails ship in every plan, and in the free days you earn — they don’t switch on as you climb the ladder, because the point of them is that they’re always on.
Every action leaves a receipt you can read. Nothing happens behind a spinner you can’t see — you watch each step as it runs and can review exactly what each agent did and why.
It checks in before anything you’d regret. The ask-first approvals are in every plan, and you tune how cautious they are — consequential steps wait for your yes, including on a run that fired from a schedule.
You set a spend ceiling so a run can never quietly overspend on your provider key, and you watch the live cost of every run. The real hard cap lives at your provider; the cockpit’s job is to warn, ask, and stop before you reach it.
You can stop a run at any moment and decline a step mid-task, and the receipts of what already ran are kept. Control is always one click away — in every plan.
The honest version: receipts, the full local audit trail, ask-first approvals, the live per-run cost, the spend ceiling, and the kill-switch are in every plan. We never charge you for what the AI thinks, and we never put the brakes behind a paywall.
MANAGING YOUR PLAN
Switch, or cancel, anytime.
Your plan is yours to change. Moving between plans, switching the billing period, or canceling outright are all a couple of clicks from your billing page — and none of it touches the work itself, because the work lives on your Mac.
Move up or down the ladder whenever the work changes. Upgrading widens the cockpit right away; downgrading lowers the ceiling at your next cycle. It’s the same app on every plan — only the five limits move.
It’s the same app either way. Monthly keeps it loose while you’re still feeling it out; yearly works out cheaper over the year — about two months — if you already know this is part of how you work. You can switch between them whenever you like.
If it isn’t right for you, email us within 7 days of your first subscription payment and we refund it in full — one email, no forms and no exit interview. Unused credit packs are refundable within 7 days too. The full terms are in the refund policy.
Cancel in a couple of clicks, no call required, and you keep access to the end of the period you paid for. Everything SynthOS ever made for you lives on your own Mac as real files you own — Obsidian-compatible markdown and your assets — so canceling never holds your work hostage.
What you keep when you leave: the vault and everything in it are already on your disk as files you own. Canceling stops the cockpit and the cloud sync; it never reaches into your Mac to take the work back.
WHERE TO GO NEXT
Pick a plan, keep the work.
The plan pays for the cockpit; your provider key pays for the thinking; everything it makes is yours, on your Mac. See the live prices, the bring-your-own-key reference, or get it running.
From $19/mo · Bring your own key · No token markup · 7-day money-back guarantee · Cancel anytime.