The WhatsApp Business Platform gives medium to large businesses the ability to connect with customers at scale. You can start WhatsApp conversations with your customers in minutes, send them care notifications or purchase updates, offer personalized services, and provide support in the channel that your customers prefer.
A phone number can not be used in Whatsapp Business App and WhatsApp Business Platform (API) at the same time.
{info} Update: You can now use the same number on both the WhatsApp Business App and the API. For more details click here.
Group messaging is not supported.
WhatsApp Business Platform allows for 24-hour reply window in which you can reply to customers with free-form messages. After that it only allows to reply using paid templates.
WhatsApp Business Platform allows initiating customer conversation using paid templates only. free-form messages can't initiate a conversation with a customer.
Facebook account (linked to a Meta Business account).
{info}To sign up for a WhatsApp Business Platform (API) account, you need a Meta Business Manager account. However, if you don't already have one, you can create it during the integration process.

Yes, the integration is completely free and available on each plan.
Yes. However, you can either use Whatsapp on Alaaqat or the WhatsApp application, you can't use both.