Drag-and-drop cart widgets + built-in A/B testing. No developers. No guesswork. Just more revenue from the traffic you already have.
Watch it work ↓No credit card required · Installs in 30 seconds · Cancel anytime
Shopify's default cart was built to be basic. Because a one-size-fits-all cart can't be optimized for your specific products.
There's no visual cue telling them to add one more item. So they don't. And you pay for shipping anyway.
Is the progress bar at the top better than the bottom? Without testing, you're guessing — and guesses cost conversions.
Most cart apps add 200KB to your page and tank your scores. Slow cart = worse Core Web Vitals = less traffic.
The average Shopify merchant loses an estimated $14,000/year to fixable cart abandonment.
Three steps. No developers. No theme editing.
One-click OAuth. No API keys, no copy-pasting tokens, no configuration files. Shopify handles the auth — you get straight to the product.
Choose from the widget library. Set your free shipping threshold, gift checkpoints, colors, and content — all with a live preview.
Set up a variant. Split your traffic. In 7–14 days, Cartie tells you which version earns more — not just clicks, but real revenue.
This is a real rendering of the widgets — not a mockup, not a screenshot.
Progress Bar: Visual reward tracking drives customers to add one more item.
Every merchant thinks their layout is good. Cartie merchants know which one is better — with statistical proof, not opinions.
Concluded after 14 days · 14,200 visitors
Variant B converts 15.6% better than Control. We're 96% confident this isn't random. Switching to Variant B would add ~$420/month in revenue.
All four gates passed. Winner declared automatically.
We ship a <20KB gzipped bundle to your storefront. The entire widget engine. All the logic. Smaller than one JPEG thumbnail.
Gzipped storefront bundle size. Smaller = faster.
Lighthouse scores on a store with Cartie installed. Shopify requires ≤10 point performance drop.
Every plan includes a 14-day free trial. Free for development stores.
One app, priced by your monthly order volume. Slide to your volume — every plan unlocks the full app, and Cartie moves you up automatically as you grow.
Every plan unlocks the full app · 14-day free trial · Free for development stores
Cartie's entire storefront bundle is 4.54 KB gzipped — smaller than a thumbnail image. It loads with defer, so your page paints fully before any widget code runs. LCP, CLS, and FCP are unaffected. We pass Shopify's Lighthouse requirement (≤10 point performance drop) with room to spare.
Yes. Cartie uses a Shopify App Block — a sandboxed extension point that works with any Online Store 2.0 theme. You add it to your cart page in the Theme Editor (no code). If your theme doesn't support OS 2.0, contact us — we have workarounds for most cases.
That's exactly why we have four statistical gates before declaring a winner. If Variant B underperforms, you'll see that in the data within a few days and can stop the experiment. The statistical significance requirement means you only ship a winner when you're 95%+ confident it's real improvement, not noise.
Google Optimize is shut down. More importantly, cart-level testing requires deep integration with Shopify's cart AJAX API — tracking actual revenue per visitor, not just clicks. Cartie is purpose-built for cart experiments. It measures what matters: revenue per visitor, not conversion rate alone.
No. Cartie tells you in plain language: "Variant B converts 14% better. We're 96% confident. Switch to it and earn an estimated $420/month more." The statistics happen under the hood. You just make the decision.
Shopify automatically removes the App Block from your theme when you uninstall. Your cart returns to its default appearance instantly. No residual code, no cleanup required.
Cartie stores only anonymous, hashed visitor IDs (SHA-256). No names, no emails, no order data is ever stored by Cartie. Config files on our CDN contain only UI preferences — colors, thresholds, widget order. Your Shopify customer data never touches our servers.
Each store needs its own Cartie subscription. If you manage multiple stores, contact us about a multi-store discount.
Every day without a working cart strategy, you're leaving money in abandoned carts. Set up Cartie in 10 minutes or less.
No credit card required · 14-day free trial on all paid features · Cancel anytime · Takes 30 seconds