TestLift is the Shopify A/B testing app for buy-button copy and homepage slideshows. Test Add to cart and Checkout. Test the homepage slideshow shoppers see first — a new image plus optional heading and copy, as one campaign. See which version wins. No theme rewrite. Test buy-button copy from Shopify admin with no theme code edits. Test a homepage slideshow image plus optional heading and copy as one campaign. See which version wins. Guardrails can pause the test when Variant B underperforms.

• Test Add to cart and Checkout copy without editing theme code
• Test the homepage slideshow with a new image plus optional heading and copy
• See which version wins with Bayesian winner signals
• Protect revenue with built-in guardrails