Every WhatsApp chatbot pitch deck in 2026 has the word "AI" on the first slide. Meanwhile, what a small business in Spain actually needs from a bot is almost embarrassingly mundane: the 3am booking request shouldn't evaporate, the same five questions shouldn't need a human, and the owner shouldn't be the bottleneck of their own business. Let's separate the useful from the hype — with the full cost picture, including the line item nearly every proposal hides: what Meta charges per conversation.
Scripted vs AI: the distinction that decides everything
A scripted bot is a designed flow: greeting → options → specific questions → confirmation. A well-built form wearing conversation clothes. It never improvises; anything off-script gets handed to a human.
An AI bot generates free-form answers. It demos beautifully — and in production it brings two problems a small business doesn't need: it can be confidently wrong (inventing an opening time, promising a discount you don't offer), and it charges a monthly subscription for the privilege.
Having built both: for bookings, appointments, orders and FAQs — which is 90% of real small-business cases — the script wins. Predictable, auditable, cheap to run. AI earns its keep when questions are genuinely unpredictable, and even then with a human safety net and hard topic limits.
What a scripted bot does brilliantly (and what it shouldn't touch)
The brilliance: capturing intent at any hour. A good booking flow takes a customer from "I'd like to book" to a complete request — date, time, party size, name — in 4–6 taps, no app, no account. You confirm in the morning with one tap. We built exactly this flow as an interactive chatbot demo you can poke at right now — fictional data, clearly a demo, which is precisely why you can test it without mercy.
What it shouldn't touch: consultative selling ("which treatment would you recommend?"), delicate complaints, negotiations. There the bot's only correct move is recognizing it's out of its depth and escalating. A bot that tries to solve the unsolvable burns customers quietly.
The three real costs (here's the Meta part)
A professional WhatsApp bot has three cost lines; confusing proposals blend them on purpose:
- Building the flow: script design, integration, testing. Our fixed price: from €350 (pricing); market range €300–3,000 depending on complexity.
- The WhatsApp connection: serious bots run on the official WhatsApp Business API (via Meta directly or a middleman provider). Depending on the route: €0 to a few dozen euros monthly.
- Meta's per-conversation fees — the hidden line. As of this writing: replying within 24 hours of a customer's message falls in the service window (free or near-free), while business-initiated template messages — reminders, marketing — are billed per message, at cents per conversation with rates varying by category and country. For a small business answering inbound customers, the monthly Meta bill typically runs cents to a few euros. But verify current rates before signing anything — they change, and a mass-marketing bot is a different economic animal entirely.
The control question for any proposal: "What will I pay per month in total, Meta fees included, at X conversations?" Anyone who can't answer it hasn't shipped many bots.
When you should NOT bother
Honestly, since we sell these: below 5–10 conversations a day, your best bot is you with the free WhatsApp Business app — saved quick replies, an away message and a catalog cover the job for €0 and fifteen minutes of setup. A bot also fails economically if nobody on your side will process what it captures (bots collect, they don't cook), and it fails functionally if every sale is a unique consultative conversation. The bot starts paying for itself at a concrete signal: repeated questions eating hours, or bookings arriving outside opening hours and dying there. Buy at the signal, not at the trend.
Frequently asked questions
Does the bot replace a person?
No — it removes the mechanical part. The healthy pattern: bot captures and filters (off-hours, repeated questions, booking details), human confirms and handles anything delicate. Businesses that vanish entirely behind a bot eventually read about it in their reviews.
Do I need the paid API, or is the free WhatsApp Business app enough?
The free app gives you manual quick replies and a catalog — genuinely enough under ~10 conversations a day. True automation (the bot working while you sleep) requires the official API, with the cost structure above. Starting free and upgrading when volume demands it is a perfectly respectable path — we'll tell you so ourselves.
What about plugging ChatGPT into WhatsApp?
Technically doable, and for open-ended questions it works impressively — right up until the day it promises something you don't sell. If you go that way: strict topic limits, human escalation, regular conversation reviews, and budget its monthly fee. For bookings and appointments it remains a cannon aimed at a mosquito — a cannon with a subscription.
The short version
A useful WhatsApp chatbot is a well-designed script, not a spectacular AI: it captures bookings 24/7, answers the repetitive, and escalates the delicate. It costs from €350 once, plus cents-per-conversation to Meta — and you don't need it at all while the free app and your own thumbs keep up. Try the demo to feel the flow, then tell us on WhatsApp how many conversations you handle daily — the honest answer might be "not yet," and we'd rather say it now than invoice you for it.