Not another “unified inbox”

Work with your team and your clients in the same conversation

Talk to your team and reply to clients in the same thread—without them seeing it.

Clutter isn’t about syncing Slack and Gmail into one pile. It’s a new way to have conversations: internal alignment and external replies, together—without switching tools.

Get early access See how it works

Open the app if you already have access.

Brightline Studio — Q4 proposal

Client · sarah@brightline.studio

Can you send the revised scope by Friday?

Team only · invisible to client

Let’s bump timeline — I’ll draft the reply.

Your reply · to client

Yes — you’ll have it Thursday EOD. Thanks for the heads up.

You don’t need Slack and email for the same deal

Same client thread. Two places today. One place with Clutter.

Before Clutter

  • 1Gmail: client email thread
  • 2Slack: “what should we tell them?”
  • 3Constant switching — copy/paste, lost context

After Clutter

  • ✓One thread — client messages + team messages
  • ✓Internal + external — clearly separated
  • ✓Reply without leaving — no tab hop

Every important conversation is split across tools

Gmail

  • →Reply to the client here
  • →Where your client actually lives

Slack

  • →Discuss internally here
  • →Then paste back into email

You lose context every time you jump between them.

How it works

This is the experience—not “we sync your apps.”

1

Receive a client email

It shows up in the thread like you’re used to—no new client app.

2

Discuss with your team inside the thread

Side comments, decisions, drafts—your client doesn’t see any of it.

3

Reply instantly without switching tools

Send a clean email to the client from the same place you aligned with your team.

The wedge

One thread. Two audiences.

Same conversation. Internal messages (team only) and external replies (what the client sees)—in one timeline, clearly separated.

Internal

Chat with your team in real time. Tag, discuss, decide—before anyone hits Send on the client email.

External

Send clean emails to clients. No leaks, no “oops wrong window” moments.

Thread control

When a deal gets messy, split or merge threads—so chaos doesn’t become your default workflow.

A new way to have conversations

Not a better inbox. Not “all your apps in one feed.” Clutter is for when one deal lives in both email and team chat—and you’re tired of acting as the router.

Other tools force you to choose. We don’t.

“Unified inbox” tools make email faster. Clutter makes client + team conversations coherent.

Tool The limitation
SlackFast, but breaks outside your company
GmailUniversal for clients—messy for internal alignment on the same thread
Superhuman / SpikeBetter inbox—still one audience at a time

Works with the email you already use

What early teams are saying

“We replaced Slack + email for client comms. One place to align before we reply.”

— Beta team

“This is how threads should work—internal side-by-side with what the client sees.”

See the interaction

Real screenshots and a short demo video are coming—this mock shows the idea: one thread, team notes you control, client replies that stay professional.

Drop in a Figma export or Loom here when ready—don’t leave this blank on the live site long-term.

Preview · same thread

Client

Can we lock pricing this week?

Team only

Say yes but push legal review to Monday.

To client

Yes — we can lock pricing. Legal review lands Monday.

Placeholder UI — swap for product screenshot or embedded video.

Questions

Is this just a unified inbox?

No. Unified inboxes aggregate mail. Clutter is for one conversation that spans how you talk to clients (email) and how you align with your team (chat)—without switching products.

Do my clients need to install anything?

No. They keep using email like always.

Is this an AI product?

Clutter is a workflow product—a new way to run conversations—not a chatbot layer on your inbox.

Stop managing the same conversation in two places

Get early access.

No spam—just launch updates.