Insertr

The marketing channel with 100% open rate—your existing orders.

Insertr lets Shopify merchants automatically add physical marketing inserts to orders based on customer behavior. Thank you cards for first orders. Free samples to introduce new products. Discount codes for VIP customers. Subscription upsell cards for one-time buyers.

No manual work. Set up rules once. Insertr adds inserts as $0 line items that your warehouse picks and packs like any other product.

Measure everything. Track conversions, calculate ROI, and A/B test different inserts to find what drives repeat purchases.

Rule types include: Order count, customer lifetime value, product tags, shipping country, customer language, subscription status, and more.

Built by a former Shopify and 3PL engineer who also ran a subscription box business.