Guide
WhatsApp for business: app, Business Platform and API explained
The difference between the WhatsApp Business app and the WhatsApp Business Platform, how per-message pricing works, what is free, and when a growing business should switch.
VAULT 33|27 · Updated 12 November 2026 · Reviewed 12 November 2026 · 3 min read
Pricing last checked: 12 November 2026 against Meta's official pricing page. Meta changes rates and rules regularly, and some providers have reported upcoming changes, so always confirm on the official pricing page before you budget.
Two different products
| WhatsApp Business app | WhatsApp Business Platform (the API) | |
|---|---|---|
| Who it suits | Sole traders and very small teams | Teams, growing businesses, anyone automating |
| Where you use it | A phone, plus linked devices | A shared inbox, CRM or AI assistant, through Meta directly or a provider |
| Several staff answering | Limited | Yes, with assignment and history |
| Automation and AI | Basic quick replies and away messages | Full automation, AI assistants, CRM integration |
| Cost from Meta | Free | Per message for templates; replies to customers inside the service window are free (see below) |
| Messaging customers first | Manually, one by one | With approved templates and opt-in |
If enquiries arrive on one person's phone and get lost when they are busy or away, you have outgrown the app.
How pricing works now
Meta moved from charging per conversation to charging per message on 1 July 2025. What you pay depends on the type of message and the country of the recipient, not where your business is.
| Message type | What it is | Charged? |
|---|---|---|
| Service (non-template) | Your replies to a customer who messaged you, inside the 24-hour customer service window | Free, per Meta's pricing page |
| Utility template | Confirmations, reminders, updates about an existing order or booking | Free inside an open service window; charged outside it |
| Marketing template | Offers, promotions, re-engagement | Charged per delivered message |
| Authentication template | One-time passcodes | Charged per delivered message |
The 24-hour customer service window opens each time a customer messages you. Inside it you can reply freely. Outside it you can only send pre-approved templates.
Free entry points: when someone messages you from a Click to WhatsApp ad or a Facebook Page button on mobile and you reply within 24 hours, Meta opens a 72-hour window in which messages are free.
What this means for a service business
Most enquiry handling is customers messaging you first, so the replies, including AI replies, sit inside the free service window. The costs come from messages you start: reminders sent the day before an appointment, quote follow-ups days later, and marketing. Plan those carefully, use utility templates for genuine service messages, and only send marketing to people who opted in.
Rules that protect your number
- Get opt-in before messaging people first, and keep a record of it.
- Use the right template category. Marketing dressed up as utility can be reclassified or rejected.
- Make opting out easy, and respect it everywhere.
- Do not buy lists or send bulk messages to people who never contacted you. High block and report rates can restrict your account.
- Say when it is AI. If an AI assistant answers, tell the customer, as the EU AI Act now requires for EU customers.
When to switch to the Platform
Switch when two or more people need to answer, when you want enquiries saved to a CRM automatically, when you want reminders and follow-ups to run themselves, or when you want an AI assistant to answer instantly at night. Our WhatsApp and Viber automation sets this up on official business accounts in your name.
Sources
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