A/B test headlines, images, buttons, and layouts on your Shopify store. Sub-30ms performance means your store stays fast while you find what converts.
Most A/B testing tools inject heavy scripts that degrade your store's performance. TestLift uses Shopify metafields and theme app extensions to render variants natively in Liquid, keeping your Lighthouse scores intact.
Run experiments on the elements that directly impact your conversion rate and revenue.
Test product titles, descriptions, and CTAs to find the words that convert.
Compare product photos, hero banners, and lifestyle images to see what resonates.
Experiment with section order, grid vs. slider views, and content hierarchy.
Try different colors, text, sizes, and placements for your add-to-cart and checkout buttons.
Built from the ground up for Shopify merchants who care about performance as much as conversion.
Create experiments without touching code. Test headlines, buttons, images, and layouts with a point-and-click editor directly in your Shopify admin.
Track revenue impact per variant, not just clicks. See exactly how each test affects your bottom line with Shopify Web Pixel integration.
No more guessing. TestLift calculates statistical significance in real time so you know when a winner is a winner, not a fluke.
Variants render via Shopify's native Liquid engine and theme app extensions. No external scripts blocking your storefront's first paint.
Visitors always see the same variant. Hash-based bucketing ensures consistent experiences without session flapping or cookie dependency.
Manage everything from your Shopify admin. Built with Polaris, App Bridge, and Remix for an experience that feels native, not bolted on.
No script tags. No theme edits. Just install, create, and start testing.
One-click install from the Shopify App Store. Enable the theme app extension and you're ready.
Use the visual editor to build your experiment. Pick elements, set variants, define your traffic split.
Hit publish. Your test goes live instantly through Shopify's metafield sync. No deploy needed.
Track conversions, revenue, and statistical significance. Roll out the winner with one click.
Purpose-built for Shopify performance. Not a generic tool with a Shopify plugin.
| Capability | TestLift | Script-Based Tools | Generic Platforms |
|---|---|---|---|
| Variant assignment speed | <30ms | 200-400ms | 500ms+ |
| No Lighthouse score impact | ✓ | ✕ | ✕ |
| Theme App Extension (no script tags) | ✓ | ✕ | ✕ |
| Shopify Web Pixel tracking | ✓ | Some | ✕ |
| Revenue attribution per variant | ✓ | ✓ | Limited |
| No flicker on page load | ✓ | Varies | ✕ |
| GraphQL Admin API only | ✓ | Mixed | N/A |
| Starting price | Free | $40-99/mo | $100+/mo |
TestLift follows Shopify's Built for Shopify requirements from day one. No shortcuts, no legacy APIs, no performance compromises.
// TestLift Architecture // "Sync on Save" pattern async function publishExperiment(test) { // Write config to app-owned metafield await shopify.graphql(` mutation { metafieldsSet(metafields: [{ ownerId: $shopId namespace: "testlift" key: "active_tests" type: "json" value: $config }]) { metafields { id } } } `); // Liquid reads metafield at render // No API call. No latency. // Assignment: <30ms via localStorage } // Variant served in first Liquid pass // Lighthouse impact: ~0 points
Start free. Scale when you're ready. No surprise fees.
Everything you need to know about TestLift.
Get in touch to learn more about TestLift and how it can help optimize your Shopify store's revenue.