Weo Dialer
WhatsApp gives businesses two products. The WhatsApp Business app is a free app for Android and iPhone, meant, in Meta’s words, for small businesses whose main need is to talk to customers one-on-one. It has a business profile, a catalogue, labels, quick replies, greeting and away messages, and broadcast lists of up to 256 contacts that reach only people who saved your number. Up to four linked devices can use the same account. The WhatsApp Business Platform, usually called the API, has no app of its own: businesses connect it to software through Meta’s Cloud API, usually via a solution provider, and pay per delivered message by category. It is built for scale: many agents, automation and CRM integration, within messaging limits that start at 250 unique customers a day outside a conversation and grow to unlimited. One number can now run both at once through what Meta calls coexistence. Weo Dialer, a calling CRM app, works with each: it opens the app with messages ready, and connects to API providers for background sending.
WhatsApp Business API vs WhatsApp Business app compared
Facts checked on WhatsApp’s and Meta’s official pages on 5 October 2026.
| Feature | WhatsApp Business app | WhatsApp Business Platform (API) |
|---|---|---|
| Cost | Free to download | Per delivered message, by category and country |
| Interface | The app on a phone, plus linked devices | No app; connected to software via Cloud API |
| Devices or agents | Up to 4 linked devices | Many agents and bots through connected software |
| Broadcast | Lists of up to 256, only to people who saved your number | Template messages within your messaging limit |
| Daily reach outside a chat | Not published | 250 unique customers in 24 hours for new portfolios, rising to 2,000, 10,000, 100,000 and unlimited |
| Automation | Greeting, away messages, quick replies | Programmatic messages from your systems |
| CRM integration | None built in | Designed for CRM and backend integration |
| Same number on both | Yes, through coexistence with a supporting partner | Yes, through coexistence with a supporting partner |
| Quality checks | Account bans for spam and bulk messaging | A green, yellow or red rating driven by recent customer feedback |
WhatsApp Business app limits for teams
The app works well while one person handles the chats. Problems start as soon as a team does. A broadcast list holds at most 256 contacts and arrives only on phones where your number is saved. Linked devices are capped at four. There is no record of which colleague promised what, and no link to the customer’s calls. WhatsApp’s help centre also warns against bulk messaging, auto-messaging and auto-dialling from its apps, and says accounts reported many times are banned.
WhatsApp Business API costs
On the platform, a message is billed only once it is delivered. The price varies with where the recipient is and what kind of message it is, and WhatsApp sorts messages into four kinds: marketing, utility, authentication and service. A customer who writes to the business opens a free window of one day for service replies, and every new message from that customer starts the day again. Your solution provider bills these charges, often with its own platform fee on top. The app, by contrast, is free to download and to message from.
WhatsApp Business API messaging limits
Meta caps how many different customers a business may contact first, without an open conversation, in any rolling day. A new business starts at 250 such customers and can climb, level by level, to no cap at all, provided its messages keep a good quality rating. How to move up those levels, and what lowers the rating, is explained in send bulk WhatsApp without ban.
WhatsApp Business API vs WhatsApp Business app on the same number
Until recently a number had to choose: Meta’s documentation says numbers already in use with WhatsApp cannot be registered on the platform unless they are deleted first, and deleting loses the messaging history. Coexistence changes that. Onboarding through a solution partner that supports it lets the same number keep working in the Business app while also using the Cloud API, with up to six months of chat history synced. The conditions matter: the app must be version 2.24.17 or later, throughput is fixed at 20 messages per second, group chats are not synced, existing broadcast lists become read-only, and messages sent from the app stay free while API messages are charged.
WhatsApp Business API vs WhatsApp Business app for calling teams
Teams that sell on calls often need both. The app suits personal follow-ups from a salesperson’s own phone; the API suits automatic messages after missed calls and a shared record of every conversation. In Weo Dialer you choose WhatsApp or WhatsApp Business as the default app for messages you send yourself, and connect one or more API providers as named profiles for background sending and the WhatsApp CRM inbox, where chats sit beside each customer’s calls. Large campaigns belong on the API; the reasons are in send bulk WhatsApp without ban. Teams changing calling CRMs over how WhatsApp is set up can see the three sending routes side by side.
WhatsApp Business API vs WhatsApp Business app limits
Neither product fits every case:
- Cold outreach. Both are built for customers who expect your messages; quality ratings and bans follow complaints.
- Fully free automation at scale. The app is free but manual; automation at scale means the paid API.
- Group-based selling after coexistence. Group chats are not synced between the app and the API.
WhatsApp Business API vs app sources
- About WhatsApp Business (WhatsApp Help Centre)
- Differences between the WhatsApp Business platform and app (Meta)
- How to use broadcast lists (WhatsApp Help Centre)
- How to use WhatsApp responsibly (WhatsApp Help Centre)
- Messaging limits (Meta for Developers)
- Onboard WhatsApp Business app users (Meta for Developers)
- WhatsApp Business Platform pricing
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WhatsApp business API vs WhatsApp business app FAQ
Can I use WhatsApp API and WhatsApp Business on the same number?
Yes, through what Meta calls coexistence, if you onboard with a solution partner that supports it and run WhatsApp Business app version 2.24.17 or higher. Up to six months of chat history can be synced, but group chats are not synced and existing broadcast lists become read-only.
Is WhatsApp Business API free or paid?
Paid. WhatsApp charges per message delivered, at rates that depend on the country and the message category. Replies sent inside the 24-hour customer service window that opens when a customer messages you are free.
Which WhatsApp API is best for businesses?
If your sales also happen over calls, the best WhatsApp Business API setup is one linked to the CRM that already holds those calls. Weo Dialer accepts accounts from any API provider, saved under names you choose, and shows each chat beside the customer's call history.
Can WhatsApp API be banned?
Numbers on the API are rated on quality from customer feedback over the past seven days, including block reasons such as spam or did not sign up. WhatsApp's help centre says any account engaging in spam, automated or bulk messaging could be banned.
Does Weo Dialer work with the WhatsApp Business app or the API?
Weo Dialer works with both in the WhatsApp Business API vs WhatsApp Business app sense. It opens WhatsApp or WhatsApp Business with a message ready for you to send, and it connects to API providers for background sending and the shared CRM inbox.