90 seconds
Watch Dawn work.
Pressing play loads the video from YouTube — the only third-party request this page can ever make, and only if you press it.
Cloud Less is a Mac email client with a real executive assistant — Dawn — running entirely on your machine. She triages your inbox, drafts in your voice, works your calendar, and chases threads for days. No server. No API key. No message ever leaves your laptop.
Apple Silicon · macOS 14+ · the AI runs on your Mac, never the cloud · everything stored in an AES-256 encrypted vault
Works with Gmail today — more providers on the way
Hi Roy — sending a calendar hold for our quarterly review ahead of the renewal. 30 minutes, video link to follow.
Let me know if the time doesn't work and I'll move it.
— Priya
Pressing play loads the video from YouTube — the only third-party request this page can ever make, and only if you press it.
Every “AI email” product routes your mail through someone else's models. Cloud Less makes the opposite bet: the models come to your mail. And what sits on your disk is locked too — the entire mail store lives inside an AES-256 encrypted vault, sealed whenever the app is closed. The key is generated on your Mac and never leaves your Keychain.
Download for MacAsk her in plain words and she goes to work — reading the thread, checking your calendar, building a profile on a new contact, getting a draft ready in your voice. She plans the whole errand, not just the literal ask.
The whole email experience — on-device, and built to take the weight off.
A note from Dawn over your day: what needs you first and why, your calendar as a live timeline, and the noise cleared in one undoable click.
Every incoming email is triaged, tagged, and summarized on-device — what needs you, what can wait, what's an invite, what's noise.
Replies grounded in your own past messages, the sender's dossier, and the actual thread — staged in the composer for you to edit and send.
Reads and writes your Apple Calendar, handles RSVPs, sends real invites — proposals first, your click always the commit.
Standing rules — “file the receipts”, “archive the newsletters” — run automatically or queue for your review. One click undoes a run.
Living dossiers for the people you write to: context, history, your notes. Built locally, editable, undoable.
Dawn runs on open-weights models served by our own runtime for Apple Silicon — including 2-bit ternary models small enough to leave your RAM to you. The app recommends the strongest brain your machine holds; you can switch anytime.
| Your Mac | Dawn's brain | Feels like |
|---|---|---|
| 32 GB and up | 35B mixture-of-experts | The full assistant — deep drafts, long context, fast |
| 24 GB | 35B, 2-bit compressed | The big brain in half the memory |
| 16 GB | 27B ternary or 4B hybrid | Nearly all of it, in about 6 GB of memory |
| 8 GB | 4B hybrid + 8B ternary fast brain | Snappy triage and planning; drafts hand off to the strongest brain you hold |
These are hard limits, not suggestions — the app refuses to load a brain your memory can't hold safely, so it can never freeze your Mac.
Standing on open work, credited gladly: Qwen3.6 35B by Alibaba (MLX build: LM Studio community) · Q2K-XL quant by Brooooooklyn · Ternary Bonsai 27B and 8B by PrismML · MLX by Apple.
Really all local. There is no server to send anything to — we didn't build one. The complete network behavior is the six-line list above, and you can verify it with Little Snitch; we'd be delighted if you did.
Your mail store sits inside an AES-256 encrypted vault that is sealed whenever the app isn't running. The key lives only in your Mac's Keychain, behind your login. Whoever has the disk has ciphertext. (Turn on FileVault too — belts and suspenders.)
Not unless you sign a task — and you sign the exact bounds: who she may write to (replies only, never anyone new), a cap on sends, an expiry. The card shows her plan before you sign; the final word always comes back to your desk. Everything else she prepares waits for your click.
Better than you think. Triage and planning run near-instantly on machines as small as 8 GB. Drafting quality scales with your RAM — the 35B writes like a sharp assistant; the small brains route brilliantly and hand the writing to a bigger model.
Free during the beta. No account, no card, nothing to sign up for — download it and go.
First run opens a full demo inbox — fake mail, simulated calendar, nothing of yours involved — so you can try everything before connecting Gmail.
Apple Silicon · macOS 14+ · free during beta · signed & notarized
Email should feel like stepping outside on a cloudless day. Light. Bright. Handled.