WABA vs the WhatsApp Business app
The free WhatsApp Business app is a download for a single phone. It has a business profile, quick replies, away messages and a catalogue, and it needs no WABA because it is not on the platform. A WABA exists only once you move to the WhatsApp Business Platform — the programmatic side. That is the point at which templates, conversation-based pricing, messaging limits and quality ratings all start to apply, because those are all properties of the WABA rather than of an app on a handset.

