Website chat assistant, WhatsApp agent, or both: which a small business needs, and how the two work together

A website chat assistant and a WhatsApp agent sound like the same thing in two places. They serve different moments. The website assistant talks to a stranger who is still deciding; the WhatsApp agent talks to a person who has decided to talk to you. Whether you need both depends on where your customers are when they have questions.

By Ritchie, ReplyKit · Published 5 September 2026 · 5 min read

Quick answer

A WhatsApp agent answers people who already chose to message you: known number, clear intent, booking in the chat. A website chat assistant answers anonymous visitors who are comparing and would leave rather than open WhatsApp; its job is to answer in a sentence and convert to a booking or a WhatsApp handoff. If most enquiries start on your website, you need both. If customers find you on Google Maps, Instagram or referrals and message directly, WhatsApp alone may be enough. Both are included on every ReplyKit plan.

What each doesWhen WhatsApp alone is enoughWhen the website assistant matters mostHow they work togetherDecidingFAQ

What each does

Website assistantWhatsApp agent
WhoAnonymous visitor, comparingKnown contact, decided to talk
MomentBefore choosing youAfter choosing to ask
Reply styleOne to three sentencesConversational, can be longer
GoalAnswer, then book or hand to WhatsAppAnswer, qualify, book, follow up
Follow-upNone unless a contact is capturedReminders, nudges, CRM
HoursAlways onAlways on

When WhatsApp alone is enough

Add a WhatsApp button to the site as described in the website button guide and let the agent do the rest.

When the website assistant matters most

The instructions differ from WhatsApp's; see website assistant instructions.

How they work together

The website assistant answers the first questions and offers two exits: book here, or continue on WhatsApp with a pre-filled message that names the page. The WhatsApp agent picks up with its own knowledge and the CRM. In ReplyKit the two have separate knowledge bases and instructions, share the inbox, and count replies against the same monthly allowance. One website assistant is included on Starter; Growth and Pro include more, alongside more WhatsApp numbers. Plans are in what it costs.

Deciding

Look at where your last thirty enquiries started. If most were website visits followed by a WhatsApp message, both. If most were direct messages from Maps, social or referrals, WhatsApp first, and add the website assistant when you see visitors leaving the pricing page without asking.

Frequently asked questions

Do I need both a website chat and a WhatsApp agent?

If most enquiries start on your website, yes. If customers message you directly from Maps, social or referrals, WhatsApp alone may be enough.

What does a website assistant do that WhatsApp cannot?

Answer an anonymous visitor who is comparing and would leave rather than open WhatsApp, and book without leaving the page.

Do they share knowledge?

In ReplyKit each has its own knowledge base and instructions, tuned to its audience, sharing one inbox.

Does running both cost more?

Every ReplyKit plan includes a website assistant alongside the WhatsApp agent; replies share the monthly allowance.

How do they hand off?

The website assistant offers a WhatsApp link with a pre-filled message naming the page; the WhatsApp agent continues from there.

Both included, each tuned to its audience

Website assistant and WhatsApp agent on every plan. 7-day free trial.

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Written by Ritchie, ReplyKitPart of the small team in Malaysia that builds and runs ReplyKit. Writes about WhatsApp automation, AI customer service and small business lead response.

How we know this. ReplyKit ships both, each with its own knowledge and instructions, and the plan structure reflects what we see: most customers start with WhatsApp and add the website within a month. Product figures in this article (limits, prices, per-reply costs) are taken from ReplyKit as it runs today and are re-checked when we update the page. Where we cite outside research, the source is linked below. We sell ReplyKit, so read our product claims with that in mind; we say where a different tool or no tool is the better choice. About ReplyKit.

Sources and further reading

  1. Harvard Business Review, The Short Life of Online Sales Leads (Oldroyd, McElheran, Elkington, 2011) · firms that responded within an hour were about seven times more likely to qualify the lead
  2. WhatsApp Business Messaging Policy · opt-in, opt-out and prohibited-use rules every business must follow

ReplyKit is an independent product and is not affiliated with or endorsed by Meta or WhatsApp. This article is general guidance for running a small business, not legal, financial or regulatory advice.