Upsells that look like they belong in your cart

Harbor adds one-click offers to your cart drawer — matched to your theme, priced flat, and measured against completed orders instead of clicks.

Install Harbor

Harbor installs from the Shopify App Store. Open it from your store’s admin, or find it on the App Store listing.

Find Harbor on the Shopify App Store

Native to your theme

Four presets, from a hairline outline to a bold accent border. The widget inherits your fonts and colors, and ships under 20KB so it never slows the cart down.

Revenue you can trust

Attributed revenue is calculated from completed orders — never from widget impressions or clicks. The number on your dashboard is money that actually arrived.

Flat pricing

$12.99 a month for unlimited offers, with a 7-day free trial. No percentage of your sales, no per-usage meters.

Automatic discounts

Give an offer a discount and Harbor applies it in the cart the moment a shopper accepts — no discount codes for them to enter or for you to manage.