Bundle Builder by Ecombone

Let shoppers build their own box

Pick-any-6 boxes at a fixed price, buy-more-save-more tiers, curated bundles and free gifts — all from one app. The discount applies automatically at checkout, no theme code required.

Flat $9.99/mo7-day free trialAny Shopify plan

Two sides. One flow.

Shoppers fill a box. You set the rules once. Shopify handles the money.

Shopper Flow
1

Open the box builder

The picker sits on your product page. Collection tabs, quick-view, variant picker — no redirect, no separate page.

2

Fill the slots

A visual tray shows every slot filling up, with a progress bar and a nudge when they are one item away.

3

See the saving live

The box price and the "you save" pill update on every pick. Free gifts unlock as slots fill.

4

Add the box to cart

All picks merge into a single fixed-price line at checkout. Contents stay visible in the cart.

Merchant Flow
1

Create the box

Choose how many items fit, which collections shoppers pick from, and the fixed box price.

2

Add gifts and upsells

Attach a free gift, a paid add-on, or a post-add upsell. Build ready-made boxes shoppers can load in one click.

3

Add the block to your theme

One click from the app drops the block into your product template. No Liquid edits, no developer.

4

Watch the revenue land

The analytics dashboard attributes revenue per offer and shows which products shoppers actually pick.

Every bundle mechanic. One app.

Built on Shopify Functions, so the discount is calculated at checkout — not faked with a draft order.

Build a Box

Shoppers pick a set number of items from the collections you choose and pay one fixed box price. The app creates the bundle product for you and merges every pick into a single cart line at checkout.

Fixed box priceCollection tabsSlot tray & progressQuick-view & variantsReady-made boxes

Volume Tiers

Buy 2 save 10%, buy 3 save 15%. Percentage or flat amount, on all products, specific products or a collection.

Free Gifts

Attach one or more gifts to any tier or box. The gift only goes free if the cart genuinely qualifies — abuse is blocked at the function.

Curated Bundles

Pick products that go together and discount them when all of them are in the cart. Percentage off each item, or a flat amount off the set.

Cross-Variant Qualifying

One small, one medium, one large still counts as three. Quantities are summed across variants of the same product, so shoppers actually hit your tiers.

Matches Your Theme

Colors, radius, borders, spacing, layout and every label are editable in the app — with a live preview. Optionally take over the theme's price and add-to-cart button.

Live previewCustom colorsEditable copyVertical or horizontalMobile layouts

Revenue Attribution

Attributed revenue, orders and discount given per offer — with refunds subtracted so the number is honest.

A picker that sells the box for you

Every element is there to move the shopper to a full box: a tray that fills visibly, a progress bar, a live saving pill, and a nudge when they are one item short.

Pick any N items from your collections
One fixed box price, whatever they choose
Free gift unlocks on a full box
Ready-made boxes load in one click
"Most chosen" badges from real order data
Per-market box pricing for Shopify Markets
Build your own box

Your box

4 of 6 items added

Add 2 more to unlock 15% off

House Blend
Qty 2
$24.00
Dark Roast
Qty 1
$14.00
Decaf Single
Qty 1
$12.00
Empty slot
Empty slot
Box total$50.00$58.80
You save $8.80
Add box to cart

Four ways to raise your AOV

Run them separately or all at once. When several offers match, the shopper gets the biggest saving automatically.

Build a Box

Pick any N items from your collections for one fixed price. The classic coffee, candy and skincare box.

Volume Tiers

Buy more, save more — shown as selectable options right on the product page.

Curated Bundles

Discount a fixed set of products when all of them are in the cart. Frequently-bought-together, priced.

Free Gifts

Unlock a gift at a quantity tier or on a completed box. Added automatically, verified at checkout.

Buy more, save more

Quantity tiers render as selectable options on your product page. Set a percentage or a flat amount per tier, badge the one you want them to take, and let the Shopify Function apply it at checkout.

Percentage or flat amount per tier
Target all products, specific ones, or a collection
"Most popular" badge and custom tier labels

Choose your quantity

Buy 1
Standard price
$24.00
Most popular
Buy 2
Save 10%
$43.20$48.00
Buy 3
Save 15%
$61.20$72.00
Free gift: Travel pouch
Added automatically at this tier
Free
Add to cart

Know which bundles actually pay

Revenue attributed per offer, refunds subtracted, plus the products shoppers pick most often inside their boxes.

Attributed Revenue
$38.4k
last 30 days
Orders with a Bundle
412
↑ 18% vs prior period
Avg. Order Value
$93.20
↑ $21 vs no bundle
Discount Given
$5.2k
net of refunds

Live in one click

No Liquid edits, no developer, no theme surgery.

Add the block

The app deep-links straight into your theme editor with the block ready to drop in. Everything else is configured in the app.

Works on any plan

Built on Shopify Functions as a public app, so tiered discounts run on Basic and Grow — not just Plus.

Real checkout discounts

Prices are calculated by Shopify at checkout. No draft orders, no fake line items, no discount codes to leak.

Sells in every market you do

The storefront ships in English and Spanish, and you can write your own copy for any locale your store publishes.

English and Spanish out of the box
Write custom copy per storefront locale
Per-market box prices for Shopify Markets
Percentage discounts convert cleanly across currencies

One plan. One price.

Every feature, every bundle type, unlimited offers. No revenue share, no usage tiers, no upsell to unlock the good stuff.

Bundle Builder
$9.99 /mo
Everything included · unlimited offers · unlimited orders
Build a Box, volume tiers, curated bundles
Free gifts and post-add upsells
Full design and copy customization
Revenue attribution analytics
Shopify Markets multi-currency
Storefront in English and Spanish
Start 7-day free trial

Billed through Shopify. Cancel anytime from your admin.

Turn one product into a bigger basket

Install, add the block, publish your first box. Most merchants are live in under 10 minutes.

Bundle Builder: Build a Box - Build-a-Box & Volume Discounts for Shopify | Ecombone