Wapsi: WhatsApp Restock Alerts

Wapsi adds a "Notify me on WhatsApp" button to your sold-out product pages, letting customers sign up for restock alerts with just their phone number. When products come back in stock, the app automatically sends WhatsApp messages to waiting shoppers with a direct link to buy. Track all subscribers, alerts sent, and recovered orders right from your admin dashboard. Installation takes two clicks with no theme code changes or per-product setup required. Perfect for recovering lost sales on out-of-stock items through WhatsApp notifications.