Why Koaich matters — explained without jargon.

Imagine you've got a box of important documents — passports, tax records, the love letters, the kids' medical files. You want to keep them somewhere outside your home so they're safe from a fire. You have two options:

Almost every workspace tool you use today is Option A.Slack, Notion, Gmail, Google Drive, Dropbox, Microsoft Teams, Discord — all Option A. They hold the keys. Their privacy policy regulates how they use that ability. They're not lying when they say "we take your privacy seriously" — they're just talking about Option A privacy.

Koaich is Option B.Your messages, documents, and files are locked on your phone or laptop with a key only your devices have. We store them, but we can't read them — not for ourselves, not under a court order, not in a breach. The architecture is the privacy guarantee.

For most things you write — "hey are you free for lunch" in Slack, a recipe in Notion — Option A is fine. The content isn't sensitive enough that Slack reading it is a problem. For some things, Option A breaks down. Some examples:

• Your therapist's session notes.If they're in Notion, Notion can read them. If their workspace is breached, the attacker can read them. With Koaich, neither Notion nor the attacker can — the notes are sealed on the therapist's device with a key only they have.
• A lawyer's client communications. Slack DMs to a client about a pending matter are readable by Slack staff and by anyone who serves Slack with a subpoena. Attorney-client privilege exists; it doesn't change what Slack can produce.
• An accountant's tax returns.SSNs, EINs, account balances, dependents — sitting on Dropbox or Google Drive in a form the vendor can decrypt. A single breach can expose hundreds of clients' financial details.
• Pre-announcement business intelligence.A startup's cap table, board materials, M&A diligence, the term sheet that hasn't been signed yet — all on Google Workspace or Notion, where the vendor reads them to build search indexes and AI features.
• Family logistics most people would prefer not to broadcast.Medical decisions, kids' schools, custody arrangements, immigration paperwork, financial planning across spouses. Standard cloud-tool fare. Standard vendor-readable.

None of these need to be on Option A. They're on Option A because that's what was available. Koaich is what changes that.

Fair question. Option A enables features Option B can't: server-side search across years of messages, AI summaries of your whole workspace, "forgot password" recovery via email, customer support that can pull up your channel to debug a bug. Those features exist because the vendor can read your content.

Koaich gives up some of those. Search runs on your device, against the data your device has. AI features compose context locally and only send the minimum needed to a model. There is no "forgot password" — if you lose all your devices without a recovery code, your data is gone, permanently. Customer support can't look at your channel; we troubleshoot from logs that don't include content.

That's a real trade-off.For the parts of your life where Option A is fine, keep using the tools you have. For the parts where it isn't — Koaich is the alternative that was missing.

Three ways:

1. Read the architecture page. /securitydescribes exactly what we hold, what we don't, and the cryptographic primitives. It's technical, but you don't have to understand every word — you just have to know it's public, specific, and falsifiable. A vendor that won't publish their architecture isn't doing Option B.
2. Try the scorecard. /scorecardgrades whatever workspace tools you use today, item by item, showing what each vendor can read. It's the same framework applied to us — and our row is the row that says "we can't read this."
3. Look at what we ourselves do. The product app and the marketing site source code are public on github.com/koaichapp. Independent audits and reproducible builds are on the roadmap; we publish honest progress at /web-tier-security with the status of every property — "LIVE" vs "PLANNED." The point is you can verify, not just trust.

People who've already thought, at least once, I shouldn't be putting this in Slack or I wonder if Notion can read these notes. If you've had that thought, you're who we built Koaich for.

Join the waitlist below.You'll get a note when invites are going out for your tier. Meanwhile:

• · Try the exposure scorecard to see what your current tools can read.
• · Browse the workspace breach catalog for examples of why this matters in practice.
• · If you're comparison-shopping, the side-by-side compare pages show how Koaich stacks against Slack, Notion, Google Workspace, Microsoft Teams, Discord, and Signal.
• · If you want the technical depth, /security is the canonical architecture page.