Quick-add icon on mobile collection cards: -4.9% conversion rate
Test run byClean CommitCRO agency
Commentary byLiftArchiveOur analysis, not theirsAdding a floating quick-add bag icon to mobile collection cards cut conversion rate by 4.9% and orders by 5.4%.
Clean Commit ran this test for an anonymized Shopify store and published it in its A/B test library.
Average order value rose 6.4%, which kept revenue per visitor about flat.
- Conversion rate: -4.9%, and -7.7% on mobile, where the icon appeared.
- Add-to-cart rate: -2.7%, the main metric. The original had a 75.4% probability of performing better.
- Orders: -5.4%.
- Average order value: +6.4%, so revenue per visitor stayed roughly flat at +1.2%.
The change
The variant adds a one-tap quick-add icon to each mobile product card.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
Mobile collection page cards with no add-to-cart button, so shoppers opened the product page to buy.
Variant
Each mobile card got a floating bag icon that added the default variant in one tap. Products with several variants asked shoppers to pick a size first.
Why it likely lost
Our reading of the result, not the practitioner's claim.
- Skipping the product page means shoppers miss photos, details and reviews that help them decide.
- A small icon on a small card is easy to tap by mistake, or easy to miss.
- Adding the default variant may not match what shoppers wanted, and the size prompt adds a step.
Caveats: The result was not significant: a 75.4% probability that the original was better on add-to-cart rate. Sample size and duration were not shared.
Who ran it
Clean Commit ran this test for a Shopify store (anonymized) and published the results (Clean Commit A/B test library). The numbers are theirs; the summary and commentary on this page are ours.
Read the original case study on Clean Commit →
How to run this test on your store
- Hypothesis
- If we add a quick-add icon to mobile collection cards, then add-to-cart rate will rise because shoppers can add products without opening each product page.
- Primary metric
- Add-to-cart rate
- Guardrails
- Mobile conversion rate
- Orders
- Revenue per visitor
- Who should test it
- Stores selling repeat or low-consideration products where shoppers already know what they want. It probably fits less well when shoppers need photos, sizing or reviews before buying.
Questions
Does quick add-to-cart on collection pages increase sales?
Not in this test. On mobile, it lowered conversion and orders, though order value rose.
Why might quick add hurt conversion?
Shoppers skip the product page, where photos, details and reviews help them decide. That can mean fewer confident purchases.
How should quick add handle products with sizes?
This test asked shoppers to pick a size first.
Make that step quick and clear, or limit quick add to single-variant products.
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