The features other auto-reply apps don't have.
Persistent memory. Your business knowledge. Replies in your own voice. All from one Android phone, in five messaging apps.
What does WhatsAssist do?
WhatsAssist is an Android app that answers your customers for you on WhatsApp, WhatsApp Business, Instagram, Telegram and Messenger. It writes each reply from the business details you upload once and from what it remembers about that customer, then sends it back in the customer's own language, from a supported set that covers most of the world. One switch turns automatic sending off.
Persistent memory
Most apps forget the conversation after you close the chat. WhatsAssist doesn't.
Every message in a conversation is kept in a memory that belongs to you alone, encrypted in transit and at rest. Writing a reply needs our servers, because the model runs there. When someone messages you again, WhatsAssist draws on what matters:
- What this person asked about before
- Personal details worth remembering (kid's name, anniversary, allergy)
- How they like to be answered: short or detailed, formal or casual
- The last time you talked and what it was about
Free keeps the memory of the conversation it is answering in. Memory of the customer, carried between conversations, starts on Basic.
Example reply, written for this page
Sure, your appointment is still Thursday at 2pm. I'll bring the proofs you asked for last week.
Your business, uploaded once
Upload your business as documents and your replies start citing your own data.
Send it a PDF, a photo, a WhatsApp chat export, or text you paste in. It reads them and proposes what it learned for you to approve:
- Your products and what they cost
- Menu or service list, photographed or as a PDF
- FAQs and policies (returns, hours, delivery)
- Pricing and discount rules
- Questions worth asking back before you can quote
When a customer asks "do you have it in blue under $40?", the answer is already out, with the actual item and price from your catalog. Update anytime. Nothing is added behind your back: every item a document produces is yours to approve or throw away first.
It sends by itself
This is the part people get wrong about WhatsAssist, so it is worth being blunt: it is not a drafting tool that waits for you.
Once setup is finished, WhatsAssist answers a customer message without you doing anything, on every plan. One switch turns that off, and then every reply waits in the app for you to read, edit and send. It will not invent a price, confirm stock you do not have, or repeat a note you meant to keep private. When it should not answer for you, it does not: the reply waits for you in the app instead, and it tells you why.
- It only ever answers somebody who messaged you first
- It answers one person at a time, never a list
- It stops entirely if WhatsApp flags your number
One switch in the app. Turn it off and every reply waits for you instead of sending. That is the same engine with the last step handed back to you, and it is one toggle in Settings, not a plan upgrade.
Every app it answers in
Customers do not all message you in the same place, and you should not have to watch five inboxes.
WhatsAssist answers in WhatsApp, WhatsApp Business, Instagram, Telegram and Messenger. It replies inside the app the message arrived in, as you, from the same business knowledge and the same rules. One setup covers all five, and you choose which of them it is allowed to answer in.
Each app keeps its own conversation history. A customer who writes to you on Instagram and again on WhatsApp is two conversations, and the reply to each draws on that one.
Voice trained on you
Generic AI replies sound like ChatGPT trying to be helpful. WhatsAssist sounds like you.
WhatsAssist learns from the messages you actually send. As it gathers them, replies start adopting your sentence length, your common phrases, your punctuation habits, your level of warmth. Voice training is on the Pro and Max plans.
You set the tone yourself in Settings: how formal it is, whether it uses emoji, what it signs off with. Change it and the next reply follows.
Privacy by design
Privacy is product design, not policy text.
- All ingestion happens on your device via Android notifications. We never read your screen, your keyboard, or your storage.
- Data at rest is AES-256 encrypted with Google Cloud's managed encryption, and encrypted in transit.
- LLM calls send only the minimum context needed. No identifiers, no analytics joined to your messages.
- Zero training. Your messages never enter any AI model's training set.
- You can delete your account and your data from Settings. We are still completing the parts of that erasure that reach every one of our own systems, and we will not claim it is instant until it is.
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What we deliberately don't do.
- We don't start conversations. It only ever answers someone who messaged you first.
- We don't do bulk outbound, blasts, or marketing campaigns.
- We don't auto-add contacts or scrape contact lists.
- We don't sell, share, or rent your data to anyone.
- We don't train models on your conversations.