How WhatSync handles your WhatsApp

What we save, what your AI apps can see and do, and how to switch any of it off. The full legal version is in our Privacy Policy.

Where your messages go

Three places, and you decide what moves between them.

  1. On your phone

    Your WhatsApp

    You keep using WhatsApp as usual. WhatSync is linked like WhatsApp Web, or connected through Meta if you use the WhatsApp Business API.

  2. In WhatSync

    The chats you choose

    We save the messages in the chats and groups you pick: the text, who sent it, when, and the files shared there. That is what makes search work.

  3. In your AI app

    What your AI asks for

    When you ask a question, your AI app calls the tools you allowed and gets the matching messages back. Its maker handles that data under its own terms.

Two ways to connect WhatsApp

Linked devices, like WhatsApp Web

For the number you already use. You link it from Linked devices in WhatsApp, the same way you set up WhatsApp Web. We do not ask for your WhatsApp password or SMS code. Remove the link from your phone and it stops.

WhatsApp Business API, through Meta

For templates and campaigns to customers who opted in. You connect your own number through Meta's sign-up flow. Meta reviews each template and charges per message.

What your AI apps can do

Every AI app signs in with OAuth. No passwords or keys to paste.

You allow each app

An AI app gets access only after you sign in and allow it. The Allow screen lists what it will be able to do.

Sending needs your yes

Keep the send tool on Ask in your AI app and you see the recipient and message before each send. Some connections only prepare a message for you to send yourself.

Remove an app any time

Connected apps lists every AI app and CLI with access. Remove one and it loses access right away. Your WhatsApp stays linked.

See every app with access to your WhatsApp.

Connected apps

What we do not do

Except as our Privacy Policy describes, or as you direct.

  • Sell the contents of your messages
  • Use your messages to show you ads
  • Use your messages to train general-purpose AI models
  • Ask for your WhatsApp password or SMS code

How we protect it

  • Encrypted link keys. The keys that keep your WhatsApp linked are stored encrypted.
  • No reusable passwords for AI apps. AI apps sign in with OAuth, and we keep only one-way hashes of their access tokens.
  • One account, one fence. An AI app you connect can reach only the WhatSync account you signed in with.
  • Encrypted in transit. Traffic to WhatSync goes over HTTPS.

No system is completely secure. Keep your phone, email and AI app accounts protected, and never share a QR code, sign-in code or API key with anyone.

Switch any of it off

  1. Choose what is saved

    Pick which chats and groups are saved, and change it later in your settings.

  2. Unlink WhatsApp

    From WhatSync, or from Linked devices on your phone. Either one ends the connection.

  3. Remove AI apps

    From Connected apps, one at a time.

  4. Ask us to delete your data

    Email us from your account email and we will take it from there.

Questions

Something else? Ask us.

What is WhatSync?

WhatSync connects your WhatsApp to AI apps like ChatGPT, Claude and Cursor, and to your own code through an API. Your AI can search your chats, show who is waiting on you, and help you reply.

Does linking my WhatsApp ask for my password or SMS code?

No. You approve the link from Linked devices in WhatsApp. WhatSync does not ask for your WhatsApp password or SMS verification code.

Can WhatSync read all my chats?

WhatSync saves the chats and groups you choose, and your AI apps search those. You can change the choice in your settings. A linked device receives what WhatsApp sends to it, so pick carefully what you save.

Are photos and files saved?

Yes. Photos, documents, videos and voice notes shared in the chats you save are stored with those chats, so you and your AI can find them later.

Who can see my messages when I use ChatGPT or Claude?

The AI app you connect receives the messages its tools fetch for your request. OpenAI, Anthropic and other AI companies handle that data under their own terms and settings. WhatSync is not affiliated with them.

Can my AI send messages without me?

Only if your AI app lets the send tool run without asking. Most apps let you set it to Ask. You are responsible for what you approve, so check the recipient and the text first.

Can WhatsApp restrict my number?

WhatsApp sets the rules for its service. Bulk or unsolicited messages from a linked personal number go against them and can get the number restricted. For campaigns, use the WhatsApp Business API with customers who opted in.

How do I stop using WhatSync?

Unlink WhatsApp in your dashboard or from Linked devices on your phone, remove your AI apps from Connected apps, and email hello@whatsync.app if you want your data deleted.

The legal details

WhatSync is an independent product by Appstronauts. It is not affiliated with or endorsed by WhatsApp, Meta, OpenAI or Anthropic. Their services and rules can change at any time.