Inbox zero,
on WhatsApp.

Walter is the fastest way through WhatsApp. Made for founders, executives and anyone who runs a business from their phone.

Private beta. Works with the WhatsApp you already have.

unread

Clear the noise in minutes.

Walter sorts every chat the moment it lands and gives you a key for every move.

Split inbox

1 to 4

Important people, your team, groups and everything else, each in its own lane.

Team125 unread
Team is clear.

Mark done

E

One key and the chat is gone, until someone writes again.

Important3 chats
Daniel comes back tomorrow at 9:00.

Remind me

H

Clear it now. Walter brings it back tomorrow at 9, or whenever you choose.

Replies that sound like you.

Drafted in your voice, sent now, sent later, or taken back before anyone sees it.

Sofia MarinNorthwind Retail
Signed on our side! Can we start onboarding next week?06:40
Written in your voiceSend

Drafts in your voice

R

Walter learns how you write from your own chats, down to the language each person uses with you.

Send laterSofia, London
In three hours04:12 her time
Tomorrow morning08:00 her time
Monday morning09:00 her time
Scheduled for 08:00, her time.

Send later

L

Write at midnight. It lands at breakfast, in their time zone.

Leadership6 members
Nadia OkaforBoard call moved to 4pm.06:58
Love you. Home by 8.07:03
Sending in 3 secondsUndo

Undo send

⌘Z

Every message waits a few seconds before it leaves. Wrong chat? Take it back.

See everything. Show nothing.

You know who has read what. Nobody knows what you have read.

LeadershipMessage info
Hiring plan before Friday, please.06:50
Nadia OkaforDelivered
Kevin LauDelivered
YouHidden

One-way read receipts

Always on

See who read your message, person by person, even in groups. Your own reading stays invisible.

Founders CircleInvisible
RafaelAnyone know a fund admin in Singapore?
JonOurs is great, will DM
MeiTokyo dinner moved to the 14th!
TomWho is in Tokyo next month?
RafaelRaising our seed. Intros welcome
InesMe, from the 12th
OmarCongrats Rafael
MeiRetreat deck is in the drive
412 new. Three worth knowing: the dinner moved to the 14th, Rafael wants intros, the retreat deck is up.

Read groups invisibly

⌘K

Read every group without a trace, or ask Walter for the three things that matter.

Claude, with Walter

        

        
Connect your AI
MCP

        
Claude, ChatGPT or your own agents can search and draft through MCP. Nothing sends without you.

      

    

  


  

    
Works with the WhatsApp you already have.

    
    
      
  1. 1Open Walter on iPhone, Android, Mac, Windows or the web.
    2. 
      
  2. 2Scan the code from Linked devices in WhatsApp.
    3. 
      
  3. 3Your chats arrive sorted. Your contacts don't install anything.
    4. 
    

  







  

  
Stop leaving
people on read.

  
The investor follow-up. The customer about to churn. The candidate waiting on an offer. Walter puts them first and drafts each reply in your voice.

  

    

      
      
      
    

    
      
  

  
Connects with one QR scan. Available now for Mac.