Every business on WhatsApp starts with the free WhatsApp Business app — and for many, it's enough. But there's a hard ceiling built into the app, and hitting it usually looks like this: broadcasts stop reaching people, two salespeople fight over one phone, and you're copy-pasting the same reply forty times a day.
Here's exactly where the ceiling is, and what the API changes.
The quick comparison
Broadcasts: App — 256 contacts per list, and only people who saved your number receive them. API — unlimited opted-in recipients with delivery/read tracking.
Devices & team: App — one number, one phone (plus limited linked devices, no accountability). API — unlimited agents in a shared inbox with assignment and notes.
Automation: App — greeting and away messages only. API — full chatbots, drip campaigns, order and payment notifications.
Integrations: App — none. API — Shopify, WooCommerce, CRMs, payment gateways, custom REST API.
Verification: App — green checkmark not available. API — eligible for the verified badge (Blue Tick).
Cost: App — free. API — platform subscription (Sendvise from ₹699/month) plus per-message messaging charges.