Most restock apps alert per product. SyncStock alerts by size: shoppers save their sizes once and hear about every pair that fits, not one item at a time. It waits for your drop to finish, then sends one email per shopper with every match, so no inbox spam. You see exactly which sales came from alerts, even Shop Pay checkouts, and which sizes shoppers want most, so you buy inventory that sells. Built for sneaker and resale stores where every size sells fast.

• Restock alerts by size, price range, and condition, sent by email and push
• Waits for your drop to finish, then sends one email per shopper
• Website plugin to redirect customers to their restock alerts page in one click
• Tracks sales from alerts, including Shop Pay and Buy it now checkouts
• Shoppers can add multiple pairs to one cart and check out together