Almost every small business in Mexico serves its customers on WhatsApp. At first, the WhatsApp Business app on a phone is enough. But as messages grow, the questions start: do I need the API? How much does a chatbot cost? Can I have several people answering the same number?
Here I explain the differences in plain language.
The two options
- WhatsApp Business (the app). Free, installed on your phone. It has a business profile, catalog, labels, quick replies and automatic greeting and away messages.
- WhatsApp API (WhatsApp Business Platform). The version for businesses that need to automate and scale. You don’t use it from an app of Meta’s own: it connects to a platform (like ManyChat or a CRM) that enables chatbots, multiple agents on the same number and integrations.
Quick comparison
| WhatsApp Business app | WhatsApp API | |
|---|---|---|
| Usage cost | Free | Meta charges for certain messages, plus the platform you use |
| Who answers | The phone and linked devices | Multiple agents from a platform |
| Automation | Greeting, away messages and quick replies | Chatbots with full flows, questions and buttons |
| Integrations | Very limited | CRM, ads, spreadsheets, custom systems |
| Bulk messages | Limited broadcast lists | Campaigns with approved templates |
| Ideal for | Businesses with few messages a day | Businesses with volume, a sales team or ongoing ads |
How Meta charges on the API
Since July 2025, Meta charges for each template message delivered, and the price depends on the country and the message category:
- Marketing: promotions, offers, invitations.
- Utility: confirmations, appointment reminders, order updates.
- Authentication: verification codes.
The most important part for a small business: when the customer messages you first, a 24-hour window opens in which you can reply with regular messages at no cost from Meta, and utility templates within that window aren’t charged either. In other words, serving people who message you from an ad or your profile is very cheap; what you mainly pay for are the messages you initiate, such as campaigns or reminders outside that window.
Exact rates by country change over time; Meta publishes them on its official WhatsApp Business Platform pricing page.
How much does a WhatsApp chatbot cost?
The total cost of a chatbot depends on three parts:
- The messages Meta charges for, based on how many template messages you send and in which category.
- The platform where the chatbot lives (ManyChat, a CRM with WhatsApp or another tool), which usually charges a monthly subscription based on contacts or features.
- The setup: designing the flows, connecting your ads and your CRM, writing the messages and testing everything. This is the part that makes the chatbot work well or feel like a robot that gets in the way.
That’s why two quotes can be very different: a greeting message is not the same as a system that qualifies leads, books appointments and follows up.
This is what a well-configured chatbot looks like
Hi, I saw your ad. Can you send me info?
Hi! Of course. What are you most interested in?1. Prices · 2. Book an appointment · 3. Talk to an advisor
2
Great, I have tomorrow at 11:00 a.m. or 4:00 p.m. available. Which do you prefer?Lead saved in the CRM
When it makes sense to switch to the API
- You get more messages than one person can handle.
- You need several people answering the same number.
- You invest in ads that send people to WhatsApp and want to record every lead.
- You want to automate replies, appointments, reminders or follow-up.
- You need to connect WhatsApp with your CRM or another system.
If you get few messages and handle them well from your phone, the free app is still a great option.
How I can help
I set up the WhatsApp API, chatbots and CRMs for small businesses across Mexico, working online: together we choose the platform that fits your volume, I design the conversation flows, connect your ads and leave the follow-up up and running. If you want to start with the basics, here I explain how to automate your business WhatsApp and how to follow up with your leads.
Message me and let’s figure out which of the two options your business needs.