How Noah works, answered.

Noah is a desktop app for your Mac or PC. You describe the problem in plain English — "my laptop is slow," "Wi-Fi keeps dropping," "disk is full again." Noah runs a small set of audited tools (processes, CPU & memory, free disk, network, the system log), names the likely cause, proposes a one-sentence fix, and runs it only after you approve it.

Download the installer for your platform from onnoah.app — it detects your OS automatically (or pick Mac / Windows). Open the downloaded file and follow the prompts.

macOS: requires macOS 12 or later (Apple Silicon & Intel). If macOS says the app is from an "unidentified developer," right-click the app → Open → Open to confirm the first time.

Windows: requires Windows 10 or later (x64 & ARM64). If Windows SmartScreen appears, click More info → Run anyway.

There is no password and no card to get started, but Noah does ask for your email address the first time you use it, and it is required — that is how we can reach you about the computer Noah is working on. It takes one line during setup.

Everything before a fix runs is free: downloading Noah, and finding out what is actually wrong. Your first conversation is free too, including the fixes in it.

Because Noah works on one particular computer, and if something needs following up we need a way to reach you. It is not a paywall — no card is asked for, and the diagnosis and the plan stay free. Setup does not send you any mail.

It is not optional, though: Noah can't start a conversation about your computer without it.

No — and that's on purpose. To actually fix a Mac, Noah has to reach the places where problems live: system caches and logs, DNS settings, runaway processes, and the leftover files quietly filling your disk. Apple's Mac App Store runs every app it hosts inside a sandbox — a security lockbox that blocks exactly that kind of access, for every app, no exceptions. A sandboxed app simply can't clear a system cache, flush DNS, reclaim memory, or remove a stuck file outside its own folder.

So a Mac App Store version of Noah wouldn't be a smaller Noah — it would be a Noah that can't fix anything. This is why the trusted Mac maintenance tools ship their full versions directly too; their App Store editions have features stripped out to fit inside the sandbox. Noah takes the direct route so it can do the whole job.

Yes. Noah is signed and notarized by Apple — Apple scans the app for malware and approves it to run, the same malware check the App Store applies. Your Mac verifies that signature before the app ever opens. You're getting an Apple-vetted app, just without the sandbox restrictions that would stop it from fixing your Mac. Installers are served straight from Noah's own infrastructure at onnoah.app.

Downloading Noah is free, and so is finding out what's wrong — always. Your first conversation is free too, including the fixes in it. After that, running a fix needs a plan.

Noah Monthly is $8.99 a month. Noah Guardian is $79 a year, about 27% less than paying monthly, and it renews yearly until you cancel. Both plans do everything Noah can fix — there are no locked features.

If you're a new customer, either plan starts with a 7-day free trial: a card is required, nothing is charged for 7 days, and you can cancel anytime from Settings. If Noah has already fixed something for you on an earlier visit, there's no trial left to give you — subscribing charges you that day, and the checkout says so before you confirm.

Up to 3 of your own computers, Mac or Windows. Subscribe on one, then install Noah on the others and sign in with the same email from Settings → Billing.

Install Noah, open Settings → Billing, and ask for a sign-in link for the email on your account. Click that link on the new computer and your plan carries over — there's no password to remember.

A computer stays signed in for as long as you keep using it. One left untouched for 90 days signs itself out, and you sign back in the same way.

Inside Noah: Settings → Billing → Manage subscription, which opens Stripe's customer portal. A recurring plan renews until you cancel; if you cancel, you keep access through the period you've already paid for.

Yes — if Noah doesn't work for you, email [email protected] within 14 days of purchase and we'll refund you, no questions asked. After 14 days we handle refunds case-by-case.

Only what your OS exposes to any app: the running processes (the same list Activity Monitor or Task Manager shows), CPU & memory, free disk space, network status, and the system log. To find what's filling your disk it also checks file and folder sizes — on a Mac, macOS asks your permission first — but it doesn't open your files to read what's inside: names and sizes, not contents. No browser history. No passwords. No screen capture. The conversation is sent to our AI provider to generate the diagnosis, and we keep a record of it as your repair history until you ask us to delete it. Full details in the Privacy Policy.

Every change Noah makes is logged, and destructive operations require a second confirmation before they run. Noah never executes arbitrary shell or PowerShell commands; each action is a hand-built tool with a fixed, narrow scope — so it can only do the specific, named thing you approved.

No. The conversation uses a language model, but every action is a purpose-built tool with a fixed scope — Noah can't run arbitrary commands on your machine. The model decides what to suggest; it can only act through Noah's audited tools, and only after you approve.

No — a dead battery, failing SSD, or busted Wi-Fi card needs physical repair. Noah diagnoses the symptom and tells you when it's hardware, so you know whether to book a repair appointment instead of chasing a software fix.

macOS — if you see "unidentified developer," right-click the app icon → Open → Open. You only need to do this the first time.

Windows — if SmartScreen blocks it, click More info → Run anyway. If your download stalls, try again from onnoah.app; installers are served directly from our own infrastructure.