Aletha CodexPricing
Pay once. Own it. No subscription, ever.
Aletha Codex is $100, 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
On your Mac in minutes. Your license key appears on screen right after payment. That's it.
Get the download14-day guarantee — if Aletha won't run on your Mac and we can't fix it, we'll refund you.
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.
- 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.
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 ~2.8 GB.
A license activates one Mac. Getting a new one? Email support@alethacodex.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.
On Windows?
Aletha is Mac-only today. Want it on Windows? Drop your email and you'll be first to know.
Ready when you are.
Get Aletha Codex — $100, one timeDownload for Mac · 14-day guarantee · your conversations never leave your device