WhatsApp, Business, API or coexistence: the differences between the 4
Personal WhatsApp, the WhatsApp Business app, the official API and coexistence compared: who each one is for, what it allows, what it costs and which to choose.
“I want WhatsApp for my business.” We hear it every week, and the next question is always the same: which one? Because today there is no single WhatsApp: there is the personal app, the WhatsApp Business app, Meta’s official API and coexistence between the last two.
Choosing wrong costs you lost customers or paying for something you don’t need yet. Here are the four, side by side.
What are the 4 versions of WhatsApp?
They are WhatsApp (personal), WhatsApp Business (app), the WhatsApp Business API and coexistence. Each one has its full guide:
- WhatsApp: the personal messaging app. See what WhatsApp is and how it works.
- WhatsApp Business: the free app for small businesses. See what the WhatsApp Business app is.
- WhatsApp Business API: Meta’s platform for companies. See what the WhatsApp Business API is.
- Coexistence: the WhatsApp Business app and the API on the same number. See WhatsApp coexistence.
How are they different?
They differ in who they are for, how many people can respond, whether they connect to other systems and how much they cost. This table sums up what WhatsApp’s official comparison and Meta’s documentation say:
| WhatsApp Business | API | Coexistence | ||
|---|---|---|---|---|
| Who it is for | People | Small businesses | Medium and large companies | Growing businesses that keep the app |
| What it is | App | App | API platform | App and API on the same number |
| Cost | Free | Free | Per delivered message | App free, API per message |
| Agents | One | One, from a single number | Many agents and bots | Phone plus agents in the CRM |
| CRM and integrations | No | No | Yes | Yes, through the API |
| Business profile and catalog | No | Yes | Yes | Yes |
| Automation | No | Greeting, away messages and quick replies | Flows, templates, bots and AI | The app’s plus the API’s |
| Official campaigns | No | No | Yes, with approved templates | Yes, with a speed limit |
How much does each version cost?
Both apps are free; the API charges for each message your business sends. WhatsApp, according to its official site, is free, just like the WhatsApp Business app. The API charges per delivered message since July 1, 2025, based on the category (marketing, utility, authentication or service) and the customer’s country, according to Meta’s pricing page.
With coexistence, what goes out through the API is billed as in the API. According to providers like Chakra, the messages you send from the app remain free. Messages you receive from your customers are free in every case.
Which one suits your business?
It depends on how many people respond and whether you need a CRM or automation.
- You respond on your own to a few customers a day: the WhatsApp Business app.
- You have a team, campaigns or a CRM: the official API.
- You want CRM and AI without letting go of your phone: coexistence.
- You only talk to friends and family: personal WhatsApp, and nothing more.
Common mistake: selling from your personal WhatsApp or from “modified” apps that promise business features. They are not official, they don’t connect safely to a CRM and they put your number at risk.
Can you switch versions without losing the number?
Yes, you can move from the WhatsApp Business app to the API with the same number. There are two paths: direct migration, where the number leaves the app and works only through the API, or coexistence, where it stays in the app and also connects to the API, with contacts and up to six months of history synced. If you use the personal app for your business today, the first step is moving that number to WhatsApp Business.
For large campaigns, keep in mind Meta’s messaging limits, which apply to both the API and coexistence.
In short
There is no WhatsApp better than another: there is one right for each stage. The personal app is for your life, WhatsApp Business is the business’s first step, the API is for operating with a team and a CRM, and coexistence is the bridge between the two. If you want us to define it with you, at tumarcaviral.com we handle the implementation of the official WhatsApp API.
Frequently asked questions
What is the difference between WhatsApp and WhatsApp Business?
WhatsApp is the personal messaging app. WhatsApp Business is a free app for small businesses, with a business profile, catalog, automated messages, quick replies and labels.
What is the difference between WhatsApp Business and the API?
The app is free and works from a single number with no integrations. The API is a Meta platform for companies, with multiple agents and bots, CRM connection and per-message billing.
What is WhatsApp coexistence?
It is the option that connects to the API the number you already use in the WhatsApp Business app, without removing it from the app. Contacts and up to six months of history are synced.
Can I switch from one version to another without changing my number?
From the WhatsApp Business app you can move to the API with the same number, either by direct migration or through coexistence. From the personal app, the number first moves to WhatsApp Business.
Which one is right for me?
If you handle a few customers on your own, the WhatsApp Business app. If you have a team, a CRM or want to automate with AI, the API. If you want that without letting go of your phone, coexistence.
Do not stop at the theory: apply it to your business
We implement the WhatsApp Business API end to end, with your real operation. The first conversation is free.
