A real email app with an AI that sorts, answers, and defends your inbox — running entirely on your Mac's own chip. Not a cloud service. Not a data-harvester.
Free 14-day trial — the whole app, no card.
Apple Silicon · macOS 14+ · auto-updates · then $39.99 lifetime (no subscription)
One box at the top of every screen. Type plain language — Locker acts, or it finds. Like Raycast, for your inbox. Read-only asks (“find…”, “show…”) only ever search; they never delete or archive.
None of these contain the word “baby.” Keyword search finds none — Locker finds them all.
Ask for what you actually want. Locker understands it — and runs the search model right on your Mac, so your mail never leaves your device. The model is built into the app. Nothing is uploaded, ever.
Not another label button. Locker reads, decides, and acts — and asks before it touches anything.
A banner only when it matters — a VIP, an urgent message, a security alert. Quiet hours, per-person VIPs and mutes, decided on your Mac. No “you've got mail” spam.
Point-and-click: “when my biggest client emails about invoices → notify me.” Tag anything, snooze with remind-me — a banner brings it back at 3pm.
New senders wait at the door with a who/what summary. You decide who gets in.
Spoofed senders caught by DMARC and look-alike links — checked on your Mac.
Burns out the invisible tracking pixels before the email loads. They never find out.
One line every morning: who needs you, what's flagged, what's drafted, what to clear.
AI writes the reply in your voice and signs your signature. Edit, then approve — nothing sends on its own.
Every recurring charge in one place — “Audible trial ends in 3 days.”
Unsubscribe and block in a single tap; the junk gets stripped from what's left.
Translate any email on your Mac. Reply, and it answers in the sender's language.
Run several domains off one mailbox? Reply, and Locker sends from whichever address the message came to — one inbox, the right identity every time. It even suggests your addresses.
New version? One click — it downloads and relaunches on its own. No disk images, no dragging, your setup untouched.
Undo Send catches the message you shouldn't have sent. Send Later schedules it for the right moment. Forwards keep their attachments. Small things, done right.
Gmail & IMAP connect directly. Work / Outlook / 365 accounts that block IMAP connect through Apple Mail, locally on your Mac — no IT needed, if your company permits it. (Apple Mail downloads your full mailbox to disk, so very large mailboxes use real space.)
The AI runs on your Mac's own chip. Your email isn't uploaded, stored, or read by anyone — including us.
Locker proposes; you commit. Replies, archives, unsubscribes — nothing happens without your tap.
There's no account holding your inbox on someone else's server. It's your mail, on your machine.
Superhuman and Shortwave are fine apps — they just run in the cloud and read your mail. Locker doesn't.
The first 10 get a lifetime license for $39.99. The next 50 for $70— both lifetime, pay once, free updates forever. Once those 60 are gone, it's $129 for 4 years of updates, then renew at the posted rate (your app keeps working either way). No monthly subscription, ever.
Need to send a file too big for email? Locker Drop encrypts it in your browser and self-destructs the link — no size limit, same privacy-first team.