Founding price — 50% off through August 6. Aletha Codex is $100 $50, one time. Get Aletha →
Aletha Codex Buy

Pricing

Pay once. Own it. No subscription, ever.

Aletha Codex is $50, one time. Most AI costs $20 a month, forever. Aletha costs nothing after you own it, and runs whether or not you're online.

Download

$100 $50 one time · 50% off through August 6

On your Mac in minutes, and yours for good. No account, no subscription — your license key appears the moment you pay.

Get Aletha — $50, yours for good

14-day guarantee — if Aletha won't run on your Mac and we can't fix it, we'll refund you.

What happens the moment you buy

Payment to first conversation, in about ten minutes.

1

Your key appears instantly

Stripe confirms payment; your license key and download land right on screen. No email to wait for.

2

Download & drag to Applications

A standard Mac install — about 3.2 GB, the model already inside. It sets itself up on first launch.

3

Press the hotkey and ask

Memory, voice, calendar, and the vault work from the first launch — on the built-in model or your own.

What you get

  • The full app — every feature, free for life on the Mac you install it on.
  • The floating Aletha widget: one hotkey, voice or text, over any app.
  • Bring your own models: point Aletha at the models in your Ollama, or use the one built in — your memory carries across every swap.
  • Persistent memory, study tools, and system-health tools — all on-device.
  • The AES-256 encrypted vault, with a key that never leaves your machine.
  • Works fully offline. No account. No subscription. Your conversations never leave your device.
  • Updates included — when Aletha improves, your copy does too.
System requirements. Requires a Mac with Apple Silicon (M1 or later), macOS 12 or newer, 8 GB RAM, and about 6 GB of free disk space. The download is ~3.2 GB. Works with the models in your Ollama, or the one built in.

FAQ

Questions, answered.

Aletha runs a full AI model on your Mac — the same kind of technology behind the well-known chat tools, sized to run privately on Apple Silicon. It drafts, explains, summarizes, quizzes you, and answers everyday questions well. Watch the tour on the home page — what you see there is what you get.

No. The microphone is live only when you open Aletha with the hotkey. There's no wake word and no background listening — and like everything else, your voice is processed on your Mac.

Only for the download. After that, everything — voice, memory, study tools, the vault — works with the Wi-Fi off.

A Mac with Apple Silicon (M1 or later), macOS 12 or newer, 8 GB of RAM, and about 6 GB of free disk space. The download is ~3.2 GB.

A license activates one Mac. Getting a new one? Email alethacodex@gmail.com and we'll move your key over.

Yes. When Aletha improves, your copy does too — no upgrade fees, no premium tier.

If Aletha won't install or run on a supported Mac and we can't resolve it, email us within 14 days and we'll refund you. See the Refund Policy for the full terms.

Coming to Windows soon.

Aletha is Mac-only today, but a Windows version is on the way. Drop your email and you'll be first to know the moment it lands.

Ready when you are.

Get Aletha — $50, yours for good

$100 $50 · founding price through August 6 · Mac · 14-day guarantee