What actually matters.
Your inbox shows you everything that arrived. LSTN surfaces the handful that need you today. Drafts already written.
You missed something important last week.
It was in your inbox. You opened it. You meant to come back to it. You didn't. By the time you remembered, the window had closed. The deal moved without you. The intro went cold. The reply that mattered got buried under the next 200.
Sarah's tone on the contract shifted four days ago, and you didn't notice. Steve emailed Tuesday, texted his assistant Thursday, and checked your calendar Friday. He's serious. You still haven't seen the pattern. Your boss sent a "we need to talk" message 10 days ago—nothing happened, she moved on, and now it's awkward. The vendor who went dark for eight months just said they're ready. You didn't know to reply.
This isn't a discipline problem. It's a tool problem. Email was designed for a world where 50 messages a day was a lot. You get 200. The signal-to-noise ratio collapsed years ago. Filters help with the noise. Nothing helps with the signal.
Every tool you've tried solves the wrong half.
Gmail and Outlook show you everything that arrived. They're databases with a UI. Apple Mail can't even search reliably. The new AI inbox startups bolt a chatbot on top and call it done — they still make you read every subject line yourself.
None of them answer the only question that matters: what actually needs me right now?
2024 changed what's possible.
Language models can finally read between the lines. They know the difference between "I'm interested" and "I'm interested, but." They notice when someone CCs the lawyer instead of replying to you. They catch the silence after an aggressive ask. Two years ago, that took a human. Now it takes a model running on your Mac.
LSTN was impossible in 2022. It's table stakes in 2026. The window to build something genuinely new is small.
One story across every channel.
Email alone is incomplete. Steve emails you Tuesday. Checks your calendar Thursday. Texts his assistant Friday. Three apps, three events, three different inboxes. Each alone looks routine. Together they tell you what's actually happening: he's moving the pieces into place and he's serious.
LSTN reads email, calendar, iMessage, Slack, and your folders. It stitches them into a single ongoing story per person, per project. Nobody else does this.
Each signal arrives with a draft already written.
Not a template. A real draft — informed by your history with this person, the thread, the tone, what you've committed to before. You read it. You tweak it. You hit send. No tab-switching. No Gmail in another window. Compose, send, archive, snooze, all of it here.
Keyboard at the speed of thought.
Open Cmd+K to see every action with its shortcut. J and K move through signals. R replies. E archives. S snoozes. Process 30 signals in the time it takes to click through 3 in a web client.
Snooze that actually works.
Type when you're ready: "tomorrow morning," "4:17am next Friday," "when I'm back." No preset buttons. LSTN learns when you're usually in-office, when you have free time, and suggests snooze times that match your actual schedule. Signal comes back at exactly the right moment.
Reply, snooze, and decide without leaving LSTN.
Every signal comes with Reply, Done, and Snooze right there. Read what matters, decide what to do, and never tab to Gmail. Your signals and your inbox are one tool. The signal is the conversation.
It's not a summary tool. It's a triage tool.
Summary tools tell you what's in your inbox. LSTN tells you what to do about it. Most of your email is just email — newsletters, receipts, "your order shipped." Those stay where they belong, in the inbox, searchable and intact. LSTN doesn't reorganize them. It just lifts the rare few that actually need your judgment up to the surface.
Your mail stays on your Mac.
Raw email bodies never leave your device. When LSTN synthesizes a signal, only the relevant context goes to Claude (our reasoning engine), encrypted in flight. The server sees signal summaries and your actions — reply, snooze, archive. That's it. No content scanning. No building a profile of you. No ad targeting, ever. The mail is yours.
Free works. Paid is where it sings.
Free tier: Gmail, signal synthesis, full email access, snooze and archive. A complete tool by itself. Paid ($10–20/mo, undecided) unlocks cross-channel synthesis — iMessage, Calendar, Slack, folders. That's where the moat is. Free is the demo. Paid is the chief of staff.
Built by someone drowning in email.
I get 200 emails a day across four accounts. A handful of them actually matter. I tried everything — Gmail filters, Apple Mail rules, every new AI inbox startup that bolted a chatbot on top. Nothing worked. They're all built for the 1990s assumption that you're managing 10 important messages a day. I needed something that would act like a chief of staff reading my inbox so I could just handle the things that actually mattered. So I built LSTN.
Stop missing things that matter.
Drafts ready. Keyboard-first. Your mail, your Mac, your decision.
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