Grais

Meet yourcommunication partner.Grais reads, remembers, plans, and answers in your voice.

For the introvert. For the busy one. For the one writing in another language. For the one wondering what people really meant.

Get the Chrome extensionJoin the iOS waitlist

Grais works where you do.

  • WhatsApp
  • Telegram
  • Instagram
  • LinkedIn
  • Tinder

5 integrated channels today. More on the roadmap.

The AI agent inside your conversations.

Personal context, not prompt tricks. Grais combines voice, memory, promises, subtext, language, and privacy controls into one communication partner.

Drafts in your voice

Grais reads how you write to each contact and matches your tone. The reply sounds like you, not like a generic AI.

Remembers what matters

Context carries across past conversations. Grais remembers what you said to a person months ago and uses it when it counts.

Tracks promises

Surfaces what you promised someone and what they promised you. Stops important threads from quietly slipping away.

Explains the subtext

Reads tone, summarizes intent, and shows you the evidence. Stop second-guessing what a message actually meant.

Speaks 30+ languages

Preserves register and tone across languages. Reply naturally in English, your first language, or theirs without sounding robotic.

Local-first and private

Conversations are only read when you attach them. You approve every action at the trust level you choose.

The autonomy ladder.

Grais drafts. You decide. How much you grant is up to you, message by message.

Tier 1

Review

You read every draft before it sends.

Grais draftEdit

Thanks for the update! That sounds great, let's move forward with that plan.

Insert

Tier 2

Voice approve

You hold to talk. Grais sends.

✓
Listening...

Tier 3

Auto respond

Grais handles known conversations on its own.

Auto respond

Only when I'm unavailable

Trust grows. Grais grows with it.

How it works.

One partner across web, mobile, and desktop. Each piece does its part.

Chrome extension

The agent inside your browser.

Get the extension
Live today
iOS

iOS app

Your inbox, in your pocket.

Join the iOS waitlist
On TestFlight now

Mac app

The silent engine that sends for you.

Request alpha access
Coming soon

iOS · Now on TestFlight

An inbox
you can close.

  • Drafts ready before you open the thread.
  • Voice or tap to approve.
  • Swipe to snooze, auto-handle, or hand back.
See iOS features
Grais iOS inbox
Grais iOS draft detail

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Be the first
on iOS.

Grais is now on TestFlight. Drop your email and we'll send you the invite.

No spam. Unsubscribe anytime.

Mac alpha
Your silent partner on the desktop. Coming soon.

Changelog

Shipping every couple of weeks. Public notes for every release.

See what's new in Grais →

From the lab.

Research-backed frameworks for communication psychology, persuasion strategy, and AI-assisted conversation execution.

Coordination

How to Return to the Standing Policy After a One-Off Approval

A standing-policy re-entry protocol for teams that used a one-off approval once and now need to stop the exception from becoming inherited permission.

Sales Qualification

How to Define the Success Condition Before Tailoring the Plan

A success-condition protocol for sales and advisory conversations where the plan should not be tailored until the buyer can name what a useful outcome would prove.

Re Engagement

How to Ask for a Final Answer Before Restarting the Case

A final-answer protocol for operators who have enough context to close or decide a stalled case without restarting another follow-up loop.

Trust

How to Name a Trust Breach Before Asking for Repair

Learn how to restart repair after a concrete trust break by naming what happened, owning the right part, and offering one corrective move.

Explore all research →

Frequently asked questions

What devices can I use Grais on?
Today Grais runs as a Chrome extension on desktop, and the iOS app is on TestFlight. The Mac app is in development and coming soon. Mobile and desktop work together; the Mac quietly handles the actions you approve from your phone.
Who is Grais for right now?
Anyone who messages too much. Introverts who find replying draining. Busy people buried under DMs. People writing in a language that is not their first. People who wonder what someone really meant. Daters trying to keep up with conversations on Tinder, Hinge, and Telegram. Today Grais runs on Chrome and on iOS TestFlight.
How is Grais different from using ChatGPT to draft replies?
ChatGPT lives in a separate tab. Grais lives where the conversation is. It reads context automatically, remembers what you have said to that person across months, tracks what you and they promised each other, and drafts in your voice. No copy-paste, no losing the thread, no starting from scratch.
Does Grais send messages on its own?
Only if you ask it to. Three trust tiers: review every draft, voice-approve before send, or let Grais handle known conversations on its own. You can change tiers per contact at any time.
How does Grais access my data?
Only when you attach it. You choose the conversation; Grais reads just the context you share while attached. It never sends a message or changes anything without your approval at the trust level you have set.
How does Grais handle and store my data?
Local-first by default. Cloud processing is used for AI features that require it (reply generation, sync), and data is encrypted in transit and at rest.
Can I delete my memories and synced data?
Yes. Delete memories, conversations, and synced records in the product. For full account and data deletion, email hello@grais.ai.
What about other languages?
Grais reads and writes in 30+ languages. It preserves tone and register so a casual reply in your second language does not sound robotic. Reply naturally in any language you read in.
Does Grais support Skills and MCP?
Yes. Grais supports MCP and Skills for agent workflows, with integrations across CRMs, knowledge bases, email, calendar, Codex, and Claude Code continuing to expand.
What is live versus in development?
The Chrome extension is the live public product. iOS is live on TestFlight; request access from the waitlist. The Mac app is in active development and coming soon. Builder integrations for Codex and Claude Code are active development areas.

Stop missing
messages.

Chrome live today. iOS on TestFlight. Mac coming soon.

Get the Chrome extension
Join the iOS waitlist →