Bundle & Quantity Break A/B Tests: What 23 Measured Results Show

Of 23 measured bundle and quantity break tests, 22 won and 1 lost. The most useful pattern: how the bundle is presented matters as much as the offer, with clear savings lines, the biggest pack listed first and a tighter buy box all winning on their own.

Dave Diederen's 'You're saving $X on this order' line gained +11.26% conversion rate. The one loss is large: Milos changed a 2-pack offer to 'Buy 2 Get 1 Free' at the same price and revenue per visitor fell -52.38%.

Below, the results are grouped by pattern, with the loss and the surprising removal win named. The grid lists every result and idea.

25measured results
24–1won vs lost or flat
68ideas to test
$218,256biggest est. monthly gain
A
→
B
+$182k monthly revenue
Added bundle options directly on the product page
Product pageBundles & quantity breaks@oliverkenyon
A
→
B
+$74,000/month
Made the announcement bar clickable, linking to high-ticket bundles
Site-wideBundles & quantity breaks@oliverkenyon
A
→
B
+$68,000/month
Added a free Summer BBQ recipe e-book as a gift with product bundles
Product pageBundles & quantity breaks@oliverkenyon
A
→
B
+$52,820 per month
3-pack bundle with Save 20% above Add to Cart on PDP
Product pageBundles & quantity breaks@oliverkenyon
A
→
B
+7.8% revenue per visitor
Removed the 1/2/3-bag bundle selector from the product page
Product pageBundles & quantity breaks@oliverkenyon
A
→
B
+$39,428/month
Added category tabs and built-in search to a cluttered bundle page
Landing pageBundles & quantity breaks@oliverkenyon
A
→
B
+30% add-to-cart rate
Sequential tests on collection grid, pricing, PDPs and cart drawer for a fan brand
Site-wideProduct cards & quick add@oliverkenyon
A
→
B
+33% average order value
New landing pages with reviews, bundles and urgency for an organic pet care brand
Landing pageBundles & quantity breaks@oliverkenyon
A
→
B
+104.06% revenue per visitor
New bundle builder with quantity and subscribe-and-save steps
Product pageBundles & quantity breaks@DaveDiederen
A
→
B
+10.77% revenue per visitor
Made the bundle buy box more compact by reducing padding between elements
Product pageBundles & quantity breaks@DaveDiederen
A
→
B
+12.53% revenue per visitor
Added a 'You're saving $X on this order' line to the bundle selector
Product pageBundles & quantity breaks@DaveDiederen
A
→
B
+4.82% revenue per visitor
Changed the bundle selector title from 'Buy More, Save More' to 'Low Stock - Selling Fast'
Product pageLow-stock & scarcity messaging@DaveDiederen
A
→
B
+9.45% revenue per visitor
Redesigned the bundle selector to ask who it's for, then show supply options with per-day pricing
Product pageBundles & quantity breaks@DaveDiederen
A
→
B
+8.66% revenue per visitor
Redesigned the bundle selector with explanatory copy, included vs. upsell slots, and trust line under ATC
Product pageTrust badges & security seals@DaveDiederen
A
→
B
+$32,565/month revenue
Added a sticky add-to-cart bar (scrolls to top when variants or bundles must be picked)
Product pageBundles & quantity breaks@DaveDiederen
A
→
B
+6.32% revenue per visitor
Triggered a confetti effect and 'biggest savings unlocked' message when the largest bundle is selected
Product pageBundles & quantity breaks@DaveDiederen
A
→
B
+14.11% revenue per visitor
Added a bundle builder
Product pageBundles & quantity breaks@DaveDiederen
A
→
B
+25% AOV over a weekend
Introduced a BOGO offer for a deal-driven audience
OtherBundles & quantity breaks@DaveDiederen
A
→
B
Won repeatedly
Placed a countdown timer above the variant/bundle selector on the PDP
Product pageCountdown timers@DaveDiederen
A
→
B
Revenue per session +43.75%
Emphasise the '3 for X' bundle with a custom bundle selector
Product pageBundles & quantity breaks@kasper_dolk
A
→
B
Revenue per visitor €3.54 to €3.84 (+8.47%)
Listed the biggest pack first in the bundle selector
Product pageBundles & quantity breaks@elevate_ab
A
→
B
+81% conversion rate
Product page redesign: lifestyle image, benefit headline, 4 bullets, testimonials, bundles
Product pageReviews & star ratings@CROguy_
A
→
B
Revenue per visitor +41.85% (£1.08 to £1.54)
New theme with a BOGO offer vs old theme
Site-wideBundles & quantity breaks@kasper_dolk
A
→
B
+10.87% revenue per visitor
Added a 'Frequently Bought Together' one-click bundle (tape and solvent) near add to cart
Product pageBundles & quantity breaks@stoykovallex1
A
→
B
-52.38% revenue per visitor
Changed a 2-pack offer to 'Buy 2 Get 1 Free' at the same price
Product pageBundles & quantity breaks@CROguy_
A
→
B
Idea, no result yet
Bundle selector with free gifts and urgency
Product pageCountdown timers@DaveDiederen
A
→
B
Idea, no result yet
Redesign PDP with benefit icons, 3/2/1 bundles, subscribe-and-save and delivery date
Product pageUSP bars & benefit icons@DaveDiederen
A
→
B
Idea, no result yet
Test showing the price in the ATC button
Product pageBundles & quantity breaks@DaveDiederen
A
→
B
Idea, no result yet
Redesign PDP with tiered tub bundles and a flavor picker list
Product pageCountdown timers@DaveDiederen
A
→
B
Idea, no result yet
Collection banner with a BOGO headline and a testimonial
Collection pageReviews & star ratings@DaveDiederen
A
→
B
Idea, no result yet
Tested a limited-time shipping offer, landing page headline copy and a bundle offer
Site-wideShipping & delivery messaging@joshtCRO
A
→
B
Idea, no result yet
Added 'New' badges on bestsellers and pre-selected bundles
Site-wideBundles & quantity breaks@joshtCRO
A
→
B
Idea, no result yet
Bundle page with a goal progress bar, tiered quantity discounts and pack cards
Landing pageReviews & star ratings@DaveDiederen
A
→
B
Idea, no result yet
Buy 2 Get 2 bundle offer with pinned sale countdown and front-loaded trust
Product pageReviews & star ratings@DaveDiederen
A
→
B
Idea, no result yet
Redesign PDP with size tabs, 3/2/1 bundle cards and a subscribe-and-save frequency step
Product pageReviews & star ratings@DaveDiederen
A
→
B
Idea, no result yet
Bundle builder with pre-selected subscription, 3 tiered quantities and a free gift
Product pageReviews & star ratings@DaveDiederen
A
→
B
Idea, no result yet
Bundle selector with a pre-selected subscription toggle below it
Product pageBundles & quantity breaks@DaveDiederen
A
→
B
Idea, no result yet
Build a mix-and-match bundle builder across different products
Product pageBundles & quantity breaks@DaveDiederen
A
→
B
Idea, no result yet
Simplified navigation, optimized the landing page order form, pre-selected a 2-bestseller bundle and set free shipping over $75
Site-wideShipping & delivery messaging@joshtCRO
A
→
B
Idea, no result yet
Product page lifestyle photos, video and FAQ, single-page checkout and pre-selected bundles
Site-wideUGC & product video@joshtCRO
A
→
B
Idea, no result yet
Subscription PDP: quantity first, then subscription perks, ships-by date and ATC showing the discounted price
Product pageShipping & delivery messaging@DaveDiederen
A
→
B
Idea, no result yet
Turn the PDP into a step-by-step color and add-on selector
Product pageUSP bars & benefit icons@DaveDiederen
A
→
B
Idea, no result yet
Turn the mobile nav menu into a merchandising menu with visual tiles
Navigation & menuBundles & quantity breaks@DaveDiederen
A
→
B
Idea, no result yet
Static, clickable announcement bar with 'Up to X% off + Free Shipping' and a countdown
Site-wideShipping & delivery messaging@DaveDiederen
A
→
B
Idea, no result yet
Buy box variants: multi-pack tiles and subscription with a free-gift timeline
Product pageBundles & quantity breaks@kasper_dolk
A
→
B
Idea, no result yet
Cart checklist: social proof, urgency, positive reinforcement, BOGO, discount field
CartSocial proof, authority & press@kasper_dolk
A
→
B
Idea, no result yet
Don't cap bundle selectors at fixed quantities
Product pageBundles & quantity breaks@kasper_dolk
A
→
B
Idea, no result yet
Offer 'buy 1' vs 'buy 2 get 1 free' side by side
Product pageBundles & quantity breaks@kasper_dolk
A
→
B
Idea, no result yet
Product card: savings, per-item price for multipacks, expensive items first
Collection pageSocial proof, authority & press@kasper_dolk
A
→
B
Idea, no result yet
Mobile PDP above-the-fold rebuild: rating, benefit headline, deal tiles, trust icons
Product pageReviews & star ratings@kasper_dolk
A
→
B
Idea, no result yet
Created 3-tier bundles with clear savings, pre-selected the most popular one and placed it above reviews
Product pageReviews & star ratings@joshtCRO
A
→
B
Idea, no result yet
Rebuilt product pages, added free shipping over $75, pre-selected a 3-pack bundle and simplified the header nav
Site-wideShipping & delivery messaging@joshtCRO
A
→
B
Idea, no result yet
Replaced a homepage dead zone with a bundle CTA and reordered product tiles by revenue per click
HomepageBundles & quantity breaks@joshtCRO
A
→
B
Idea, no result yet
Replaced a generic product page with story-driven advertorial landing pages matched to the ads, with before/after testimonials and limited-time bundles
Landing pageReviews & star ratings@joshtCRO
A
→
B
Idea, no result yet
Pre-selected the most popular bundle, showed savings visually and added bundle reviews
Product pageReviews & star ratings@joshtCRO
A
→
B
Idea, no result yet
Restructured the mobile menu, put bestsellers first on collection pages and pre-selected bundles in the order form
Site-wideBundles & quantity breaks@joshtCRO
A
→
B
Idea, no result yet
Bundle builder with Best Value anchor, auto-selected subscription and per-serving cost
Product pageShipping & delivery messaging@DaveDiederen
A
→
B
Idea, no result yet
Bundle PDP with 3-pack default, mix-and-match step and best-seller fallback
Product pageMoney-back guarantee & returns@DaveDiederen
A
→
B
Idea, no result yet
Make the second BOGO item easy to add
Site-wideBundles & quantity breaks@kasper_dolk
A
→
B
Idea, no result yet
Build-your-set selector: set size, shade filters and chosen-colour tray
Product pageBundles & quantity breaks@kasper_dolk
A
→
B
Idea, no result yet
Three-tier offer with a 'dumb' anchor option on the left
Product pageBundles & quantity breaks@kasper_dolk
A
→
B
Idea, no result yet
BOGO widget under ATC with '76% take this deal' social proof
Product pageSocial proof, authority & press@kasper_dolk
A
→
B
Idea, no result yet
Bundle selector: savings, per-unit price, free shipping from X, highest first
Product pageShipping & delivery messaging@kasper_dolk
A
→
B
Idea, no result yet
Mobile product heroes with guided option pickers and bundle tiers above the fold
Product pageBundles & quantity breaks@kasper_dolk
A
→
B
Idea, no result yet
Pricing tiers: best-margin option in the middle tagged 'Best Value'
Product pageMoney-back guarantee & returns@kasper_dolk
A
→
B
Idea, no result yet
Bundle: show what's inside, value per item, combined value vs bundle price
Product pageBundles & quantity breaks@kasper_dolk
A
→
B
Idea, no result yet
Split tested shipping offers, one-click bundles and the order form layout
Site-wideShipping & delivery messaging@joshtCRO
A
→
B
Idea, no result yet
Tested bundle offers against discount codes
Site-wideBundles & quantity breaks@joshtCRO
A
→
B
Idea, no result yet
Show promo savings in the cart
CartBundles & quantity breaks@DaveDiederen
A
→
B
Idea, no result yet
Launch PDP: live viewers, sell-out urgency and a two-flavour combo bundle
Product pageSocial proof, authority & press@kasper_dolk
A
→
B
Idea, no result yet
Add a featured products section inside the mobile navigation
Navigation & menuBundles & quantity breaks@DaveDiederen
A
→
B
Idea, no result yet
Option tiles tagged 'Most popular', a set builder and a chef endorsement in the buy box
Product pageSocial proof, authority & press@kasper_dolk
A
→
B
Idea, no result yet
Shop section: show exact quantity, exclusivity and an AOV-focused selector
Landing pageUSP bars & benefit icons@kasper_dolk
A
→
B
Idea, no result yet
Quick add to cart on collection pages
Collection pageBundles & quantity breaks@elevate_ab
A
→
B
Idea, no result yet
Anchor bundles with the highest-priced option highlighted
Product pageBundles & quantity breaks@kasper_dolk
A
→
B
Idea, no result yet
Pre-selected the top bundle, added value stacks and highlighted fast free shipping
Product pageShipping & delivery messaging@joshtCRO
A
→
B
Idea, no result yet
Added pre-selected bundles at checkout, 'Most popular' badges on high-margin items and post-purchase upsells
Site-wideBundles & quantity breaks@joshtCRO
A
→
B
Idea, no result yet
PDP buy box with bundle tiles, subscription toggle and review under gallery
Product pageReviews & star ratings@kasper_dolk
A
→
B
Idea, no result yet
Matcha PDP redesign: lifestyle hero, benefit chips, pack tiles, timer, free bonus
Product pageReviews & star ratings@kasper_dolk
A
→
B
Idea, no result yet
Added an inline bundle offer and order form to the landing page
Landing pageBundles & quantity breaks@joshtCRO
A
→
B
Idea, no result yet
Cart: -/+ quantity selector, always-visible checkout button, easy discount input
CartBundles & quantity breaks@kasper_dolk
A
→
B
Idea, no result yet
Bundle selector showing free units and a better-deal banner above ATC
Product pageShipping & delivery messaging@kasper_dolk
A
→
B
Idea, no result yet
Testimonials in raw customer language with a Day 0/2/7/30 timeline
Product pageReviews & star ratings@kasper_dolk
A
→
B
Idea, no result yet
Use a single static hero with a BOGO-style offer instead of a carousel
HomepageSocial proof, authority & press@DaveDiederen
A
→
B
Idea, no result yet
Subscription above-the-fold with USPs upfront and a simple quantity selector
Product pageUSP bars & benefit icons@DaveDiederen
A
→
B
Idea, no result yet
Product page above-the-fold: lifestyle photo, benefit title, bundle offers
Product pageBundles & quantity breaks@CROguy_
A
→
B
Idea, no result yet
Added bundle offers, improved the add-to-cart flow and introduced upsells
Product pageBundles & quantity breaks@joshtCRO
A
→
B
Idea, no result yet
Product page tests: upsell bundles, social proof near the CTA and better visuals
Product pageSocial proof, authority & press@joshtCRO
A
→
B
Idea, no result yet
Reframed the offer: Buy 2 Get 1 Free bundle, '$26/month for 3 months' price chunking and a benefit product name
Product pageBundles & quantity breaks@joshtCRO
A
→
B
Idea, no result yet
Moved the CTA above the fold, strengthened product page social proof and clarified the order box and bundle pricing
Product pageSocial proof, authority & press@joshtCRO
A
→
B
Idea, no result yet
UGC images and transformation headline on product pages, pre-selected bundles in the order form, and a clearer homepage
Site-wideUGC & product video@joshtCRO
A
→
B
Idea, no result yet
List every bundle item with its price to show bundle savings
Product pageBundles & quantity breaks@kasper_dolk
A
→
B
Idea, no result yet
Show supply length and price per day in the quantity selector
Product pageBundles & quantity breaks@kasper_dolk

What counts as a bundle

This collection covers quantity break selectors (1/2/3-pack tiles), bundle builders, BOGO offers, 'Frequently Bought Together' add-ons, and links that send shoppers to bundles. Some tests changed bundles as part of a wider page redesign, which are flagged below.

The win/loss record

22 wins and 1 loss. Two results cut against the idea that more bundle options always help: one win came from removing a bundle selector, and the loss came from reframing an offer that was already there.

Where bundles were tested

  • Product page: 19 tests
  • Site-wide: 2 tests
  • Landing page and other: 1 test each

Biggest wins and their numbers

Presentation changes to an existing selector

These are the cleanest tests, because the offer stayed the same:

Want results like this on your store?

Dave Diederen at Syntra Labs. Dave builds and tests Shopify stores at Syntra Labs, and shares most results in public.

Book a CRO call with Dave → See all their tests

Bundle builders and redesigned selectors

Dave Diederen's bundle builder with quantity and subscribe-and-save steps is the largest result: +85.04% CVR and +104.06% RPV. A simpler bundle builder gained +7.26% CVR and +$13,011/month.

Dave's selector that asks who it's for, then shows per-day pricing lowered conversion by 5.22% but raised RPV +9.45% and AOV +15.48%. It is a good reminder to judge bundle tests on revenue, not conversion alone.

Adding bundles where there were none

A→
B
+7.8% revenue per visitor
Removed the 1/2/3-bag bundle selector from the product page
Product pageBundles & quantity breaks@oliverkenyon
A→
B
+104.06% revenue per visitor
New bundle builder with quantity and subscribe-and-save steps
Product pageBundles & quantity breaks@DaveDiederen
A→
B
+10.77% revenue per visitor
Made the bundle buy box more compact by reducing padding between elements
Product pageBundles & quantity breaks@DaveDiederen
A→
B
+12.53% revenue per visitor
Added a 'You're saving $X on this order' line to the bundle selector
Product pageBundles & quantity breaks@DaveDiederen
A→
B
Revenue per visitor €3.54 to €3.84 (+8.47%)
Listed the biggest pack first in the bundle selector
Product pageBundles & quantity breaks@elevate_ab
A→
B
-52.38% revenue per visitor
Changed a 2-pack offer to 'Buy 2 Get 1 Free' at the same price
Product pageBundles & quantity breaks@CROguy_

Tests that lost or cut against the pattern

Milos's 'Buy 2 Get 1 Free' at the same price lost badly: -51.36% CVR, -52.38% RPV, -54.01% profit per visitor (-$104,679/month). The price did not change, only the framing, so the wording of a deal can matter a great deal.

Oliver Kenyon removed a 1/2/3-bag selector and won: +8.7% CVR, +7.8% RPV, AOV unchanged (+€38k/month). On that store, the selector added friction without raising order value.

Bundled tests to read with care

Kasper Dolk's new theme with a BOGO offer (+44.54% CVR) and Milos's product page redesign with bundles (+81% CVR) changed many things at once. Dave Diederen's BOGO for a deal-driven audience reported +25% AOV over a weekend only.

Design patterns that won

  • State the saving in money, on the selector.
  • List the biggest pack first.
  • Keep the bundle buy box compact.
  • Show per-day or per-unit pricing for supply-based products.
  • Use steps (quantity, then subscription) for complex offers.

How to add bundles on Shopify

Quantity breaks and bundle builders usually come from a bundle app or a custom theme block on the product template. Check that the app's discount logic matches the savings shown, since the winning tests relied on clear savings copy.

How to test it on your store

Hypothesis: adding a money-saved line to the bundle selector will raise revenue per visitor. Use RPV as the main metric, since bundle tests can lower conversion while raising AOV. If you test a new deal framing, watch for a drop like the -52.38% loss. Size it with the sample size calculator.

Questions

Do product bundles increase conversions?

In this archive, 22 of 23 bundle tests won. Dave Diederen's bundle builder with quantity and subscribe-and-save steps gained +85.04% conversion rate. But Oliver Kenyon also won by removing a 1/2/3-bag selector (+8.7% conversion rate).

Is Buy 2 Get 1 Free better than a 2-pack discount?

Not in the one test here. Milos changed a 2-pack offer to 'Buy 2 Get 1 Free' at the same price and lost -52.38% revenue per visitor (-$104,679/month).

How should I order quantity break options?

Elevate A/B Testing listed the biggest pack first and revenue per visitor rose from €3.54 to €3.84 (+8.47%). Pair that with a clear savings line, which gained Dave Diederen +11.26% conversion rate.