BigBoxRun a build-a-box offer on your Shopify store
BigBox turns the product pages you choose into a box shoppers fill themselves. They pick from products you curate, watch rewards unlock as the box grows, and check out with real Shopify cart lines. No separate bundle products to maintain, no theme surgery.
7-day free trial · Free on development stores
From install to a live box in three steps.
Pick what goes in the box
Choose hand-picked products or whole collections. Restrict variants, hide out-of-stock items, and set a minimum and maximum box size so every box makes sense to fulfill.
Set the rewards
Add up to five quantity tiers: percentage or fixed discounts, free gifts, or free shipping. Shoppers see a progress bar and unlock each tier as they add items.
Place the block and go live
Add the BigBox app block in the Shopify theme editor - a pop-out drawer on the product page, or an inline section on any page you like. Activate the bundle and the offer is live.
Everything a build-a-box needs.
The pieces that make a box offer work in production, not just in a demo.
Curated contents
Products or collections, with variant restrictions and out-of-stock hiding, so shoppers only pick from what you actually want to sell together.
Tiered rewards
Up to five quantity tiers with discounts, free gifts, or free shipping, applied automatically at checkout through Shopify Functions.
Real cart lines
Every selection is a genuine Shopify cart line with attribution properties. Inventory, reporting, and fulfillment work exactly as they always have.
Targeting and scheduling
Show a bundle to everyone, to specific customers or customer tags, or to selected markets, and schedule when the offer runs.
Styled to your brand
Colors, radius, type, and copy are yours to set. The box drawer looks like your store, not like an app. Confetti optional.
Funnel analytics
See eligible views, drawer opens, add-to-cart, and paid orders for every bundle, so you know which boxes actually sell.
Build-a-box questions, answered.
What is a build-a-box offer?
A build-a-box offer lets shoppers assemble their own box from products you curate, instead of buying a fixed bundle. With BigBox, the offer lives on the product pages you choose, and rewards unlock as the box grows.
Do I need to edit my theme code?
No manual theme-code edits. You add the BigBox app block to your product template from the Shopify theme editor, and the app home page deep-links you straight to it.
Does a build-a-box break inventory tracking?
No. Selected items are added as real Shopify cart lines with BigBox attribution properties - there's no separate bundle product to create or keep in inventory sync.
Can I control how many items go in the box?
Yes. Each bundle can require a minimum box size and cap a maximum, and you can restrict which variants are offered and hide out-of-stock items.
What does BigBox cost?
Starter is $14.99 per month for one active bundle. Growth is $34.99 per month for unlimited bundles. Both include a 7-day free trial, yearly billing saves about 17%, and development stores are free.
Give your product pages a box worth building.
Add BigBox, drop in the app block, and let shoppers assemble their own box - rewards and analytics included.
7-day free trial · Free on development stores