WhatsApp Business app
Free, single-number mobile app with a business profile, catalog, greetings, quick replies, and labels. Best for solo operators.
A plain-English guide to WhatsApp Business — the free app, the paid API, and the team platform Greenbubble adds on top.
At a glance
What you get
Free, single-number mobile app with a business profile, catalog, greetings, quick replies, and labels. Best for solo operators.
Meta-hosted, server-to-server messaging with no device limit. Meta charges per conversation; Greenbubble orchestrates the calls.
Same as Cloud API but you host the endpoints for strict data-residency or compliance requirements.
Every customer message lands in one queue with unlimited agents, assignments, and SLAs.
Admin, agent, billing, viewer roles with every action timestamped for compliance.
WhatsApp next to Instagram, Facebook, Telegram, and web chat — one timeline per contact.
How it works
Solo operator replying from a personal-style phone? The free WhatsApp Business app is enough.
When three or more people answer customers, the device cap and lack of roles become a problem.
Get a dedicated number, verify Meta Business Manager, and connect the Cloud API.
Shared inbox, automation, bulk sends, CRM sync, and AI agents on top of the API.
Deep dive
A quick reference for the term "wa business" — short for WhatsApp Business — and how Greenbubble turns it into a full team platform.
"Wa business" is informal shorthand for WhatsApp Business — Meta's official product line for businesses on WhatsApp. There are three distinct things you should know about:
A free mobile app for small businesses. Single phone number, built for one person. Offers:
Best for: solo entrepreneurs, very small shops, simple 1:1 conversations.
Server-to-server access to WhatsApp Business messaging. No per-device limit — your platform (Greenbubble, in this case) handles the API calls. Meta charges per conversation.
Best for: medium and large businesses, customer support teams, transactional messaging.
Same as Cloud API but you host the webhook + REST endpoints yourself. Same Meta conversation fees.
Best for: enterprises with strict data-residency or compliance requirements.
If you are a person with a shop and a phone, "wa business" means the free app. If you are a company with a support team and a CRM, it means the API plus a platform. The word is the same; the product is not. Most confusion online comes from people using "wa business" to mean the app when a team actually needs the API.
| Question | App | Cloud API | On-Premises API |
|---|---|---|---|
| How many agents? | 1–5 devices | Unlimited via platform | Unlimited via platform |
| Who sends messages? | A person on a phone | Your platform | Your platform |
| Automation? | Basic greetings only | Full flow builder | Full flow builder |
| Templates and bulk sends? | Very limited | Yes | Yes |
| CRM integration? | No | Yes | Yes |
| Per-conversation fees? | No | Yes | Yes |
| Infrastructure to run? | None | None | Significant |
| Best fit | Solo / micro business | Growing teams | Regulated enterprise |
For most teams, the question is not "which wa business variant?" but "which platform sits on top of the API?" Greenbubble adds:
Model Context Protocol is an open standard for connecting AI agents to tools and data. Because Greenbubble is MCP-native, an AI agent can read a WhatsApp conversation, look up the customer in the CRM, draft a reply, and propose an action — with a human approving before anything sends. It is not a chatbot script; it is an assistant that works with your live data.
Three cost layers:
Say you send 20,000 marketing conversations a month to a mid-cost market and pay Meta's published rate. Your Meta line is a calculation you can verify. Your Greenbubble line is a flat workspace fee that does not change whether you send 2,000 or 20,000 messages. There is no per-message markup hiding inside the platform fee.
| Symptom | Move to |
|---|---|
| You reply to customers from your personal phone | WhatsApp Business app |
| 3+ people reply to customers on WhatsApp | WhatsApp Business API + Greenbubble team inbox |
| You send the same transactional message (order, shipping) 100+ times a day | API |
| You want abandoned-cart flows | API |
| You want audit logs and role-based access | API + shared inbox |
| You operate in finance or healthcare | On-Premises API + Greenbubble |
The clearest sign you have outgrown the app is not volume — it is ownership. The moment two people are unsure who replied to a customer, or a promise is made that no one else can see, the app has stopped being adequate. That happens long before you send thousands of messages a day.
A typical move from the app to the API plus a shared inbox happens in four stages. First, verify the Meta Business Manager and register the number. Second, connect the platform and route inbound messages into the shared inbox without automating. Third, add templates for your most common transactional messages. Fourth, introduce flows and campaigns once the basics are stable. Teams that follow this order rarely have to undo anything. Teams that automate first and learn later usually rebuild their flows within a month.
Have your business registration and address documents on hand for verification. Decide which phone number you will use and confirm it is not active on the consumer app or Business app. Gather the five messages you send most often — they become your first templates. Finally, agree internally who will be the workspace admin and who will answer messages, because roles are set at the start and are easier to get right then than to correct later.
Wa business is shorthand for WhatsApp Business — Meta's official platform for businesses to communicate with customers on WhatsApp. It includes the WhatsApp Business app (free) and the WhatsApp Business API (paid per-conversation).
The wa business app is the WhatsApp Business mobile app — a free, single-phone-number app for small businesses. It offers a business profile, product catalog, automated greetings, and labels.
Wa business (the app) is free and built for one person. The WhatsApp Business API is paid (per-conversation fees), supports unlimited agents via a third-party platform like Greenbubble, and offers full automation, templates, and CRM integration.
Any business that wants to communicate with customers on WhatsApp. Most small shops start with the free app; growing teams move to the API + a shared inbox like Greenbubble.
Greenbubble connects to the WhatsApp Business API and adds: shared inbox, unlimited agents, role-based access, assignments, SLA tracking, audit log, automation flows, bulk sends, multi-channel (Instagram, Facebook, Telegram, web chat), and MCP-native AI agents.
The WhatsApp Business app is free. The WhatsApp Business API has no platform fee from Meta, but Meta charges per conversation, and the platform you run on top (like Greenbubble) has its own SaaS fee.
Yes. The phone number, business identity, and profile carry over, but a number cannot run the app and the API at the same time, so you delete the app account as part of the move. Chat history does not transfer automatically — plan a short transition.
WhatsApp is widely available, and the API supports most markets. Conversation rates and some features vary by country, so check Meta's current rate card and availability for your target markets before launching.
Start free trial → · See WhatsApp Business API details → · Compare platforms →
FAQ
Wa business is shorthand for WhatsApp Business — Meta's platform for businesses to message customers on WhatsApp, spanning the free app and the paid API.
The free mobile app for small businesses: one number, up to five devices, a business profile, catalog, greetings, and labels.
The app is free and single-team-oriented. The API is paid per conversation, supports unlimited agents via a platform like Greenbubble, and offers automation, templates, and CRM integration.
Any business messaging customers on WhatsApp. Small shops start with the app; growing teams move to the API plus a shared inbox.
Greenbubble connects to the API and adds shared inbox, unlimited agents, roles, SLAs, audit logs, automation, bulk sends, multi-channel, and MCP-native AI agents.
Keep reading
Go further
Greenbubble connects the official API and adds the shared inbox, automation, and multi-channel layer the app cannot.