Implementing a sticky "Add to Cart" button on mobile increased the add-to-cart rate by 8.7%. Discover how this change impacted other key metrics.
Mobile Bottom Sticky Add-To-Cart Button
Goal
Add-to-cart rate
Result
+6.8% Add-to-cart rate
Category
Product Page (PDP)
Outcome
Inconclusive
Before
After
If we add a sticky "Add to Cart" button, then conversions will increase because users can easily add items to their cart without scrolling.
What We Changed
- Added a sticky "Add to Cart" button on mobile product pages.
- Ensured the button was visible regardless of scroll position.
The Results
We dig through every data source to map what's actually broken. By the end, there's no confusion.
+8.7%
Add-to-cart rate change
+6.8%
Add-to-cart rate change
+1.8%
visitors
Key Learnings
- Increased add-to-cart rate shows users appreciated quick access to purchase options.
- Decline in conversion rate and revenue suggests potential issues with order completion.
- Reduced average order value and revenue per visitor indicate possible distraction or misalignment with user intent.
- Slight increase in bounce rate may reflect user frustration or navigation challenges.
Detailed results breakdown
Add-to-cart rate change
+6.8%
Average order value
-15.5%
Click-through rate change
-0.4%
Lift in conversion rate
-7.7%
Change in revenue per visitor
-22.1%
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30,000+ Monthly sessions.
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Other experiments we've run
Cart
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Informing shoppers that items in their cart are in high demand increased conversion rates. Discover how urgency impacts purchase decisions.
+2.74% (CVR) CVR
Landing Page
Educational advertorial landing page boosts parent engagement and conversions
We tested an advertorial-style landing page to see if storytelling and educational content increase conversions from social traffic. Discover the impact of this approach on engagement and sales.
+2.3% Conversion rate
Product Page (PDP)
Transforming the Sticky Add to Cart into a Persistent Bottom Bar
A test was conducted to transform the sticky image on product pages into a sticky Add to Cart bar. Discover the impact on conversion rates and user interaction.
+3.7% Conversion rate