BigBox
Slides in when shoppers are ready
Shoppers tap "Build your box" and the builder slides in over the page. They fill the box, watch the savings grow, and go straight to the cart - without ever losing their place.
Bundle builder for Shopify
Let shoppers build their own bundle
BigBox adds a customizable bundle builder to your store. Shoppers pick what goes in, unlock tiered rewards, and check out with real cart lines. No separate bundle products to maintain.
Built natively on Shopify
No theme codeShopify Functions discountsReal Shopify cart linesFast, cached storefront
Setup
Drop in the block. That's the setup.
Create a bundle, then add the BigBox app block in the theme editor - the app deep-links you straight to it. The inline section goes on any page you like.
- No theme-code edits, ever
- Pop-out drawer or inline section
- Conflicting offers on one page are blocked
Contents
You pick the shelf. Shoppers pick the box.
Fill the offer from hand-picked products or whole collections, and set the rules the box has to follow.
- Restrict which variants are offered
- Out-of-stock items hide themselves
- Minimum and maximum box size
Cart
Real cart lines, not a phantom SKU.
Every picked item lands in the cart as a genuine Shopify line with a BigBox attribution property. There is no separate bundle product to create, price, or keep in inventory sync.
- Inventory stays accurate
- Fulfillment and 3PL flows untouched
- Every order traces back to its bundle
Guardrails
Discounts that fix themselves.
Bundle rewards depend on a connected Shopify discount, and merchants edit discounts. BigBox watches its health through discount webhooks and repairs it by itself, before a shopper ever hits full price.
- Health check on every bundle
- Recovers automatically via webhooks
- One-click repair if you want it sooner
Two ways to put the box in front of shoppers.
Same bundle, same rewards - you just choose how it shows up on the page. Switch anytime.
Always there, no click needed
Or put the builder right on the page - a product page, the homepage, a landing page, anywhere sections go. Shoppers see it the moment they land and start filling the box straight away.
Rewards
Bigger boxes, better rewards.
Set up to five quantity-based tiers per bundle. Start from a template or build your own mix of product discounts, free gifts, and free shipping.
10% off
A gentle nudge to round out the box.
Free gift
A bonus product, added to their box on the house.
Free shipping
The full box - and the shipping line disappears.
Discounts apply through Shopify automatic app discounts and Shopify Functions when the cart qualifies - using Shopify-resolved product, variant, customer, and market context.
See which bundles actually sell.
BigBox tracks the full storefront funnel and recomputes outcomes from paid Shopify orders - opens, add-to-cart rate, cart-to-order rate, realized savings, and top products by revenue.
5
Funnel stages tracked
60d
Paid-order reporting window
1:1
Real cart lines per item
$0
Wasted on theme dev
Bundle funnel · last 60 days
Eligible views12,480
Drawer opens4,930
Add-to-cart1,610
Paid orders612
Pricing
Simple plans, priced by bundles.
Start free on a development store, then pick a plan when you go live. Both paid plans include a 7-day free trial, and yearly billing saves around 17%.
Development
Free
Development stores only
Build and test BigBox on a Shopify development store, completely free.
- Every BigBox feature
- Unlimited test bundles
- Drawer or embedded mode
- Full storefront customization
- Development stores only, not live selling
Starter
$14.99/mo
7-day free trial
or $149.99 billed yearly
For a single, focused bundle builder on your best product page.
- One active bundle
- Tiered product & free-shipping rewards
- Drawer or embedded mode
- Full storefront customization
- Funnel & paid-order analytics
Growth
$34.99/mo
7-day free trial
or $349.99 billed yearly
For brands running offers across multiple product pages.
- Everything in Starter
- Unlimited bundles
- Tiered product & free-shipping rewards
- Full storefront customization
- Funnel & paid-order analytics
Straight answers before you install.
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.
How do the discounts actually apply?
Through Shopify automatic app discounts and Shopify Functions, using Shopify-resolved product, variant, customer, and market context. The discount applies at checkout whenever the cart qualifies.
Are bundle items real cart lines?
Yes. 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.
How is order revenue attributed to a bundle?
Paid-order analytics are recomputed from Shopify orders after order webhooks, for orders that retain BigBox line item properties. It reflects paid outcomes rather than live, real-time numbers.
How do free gift tiers work?
A tier's reward can be a free gift: one product you pick. When a shopper reaches the tier, the gift is added to their cart automatically and discounted to free at checkout through Shopify Functions. If the gift has several variants, the shopper chooses one before adding the box, and gift items never count toward tier progress.
Can two offers collide on the same product?
No. BigBox blocks conflicting active bundles on overlapping active products when their eligibility scopes overlap, so one product page never serves two competing offers.
What happens if a connected discount breaks?
The bundle editor checks whether the connected Shopify discount exists and is active. If it's missing, expired, or invalid, you get a one-click repair, and discount webhooks attempt recovery automatically.
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