Cart
The Boost Cart is the best cart on Shopify — a slide-out conversion engine with reward tiers, AI-powered recommendations, and one-tap subscribe that replaces your default cart, or the second-tier cart app you’re paying for now, with the experience merchants say is the best they’ve used.
What it is
The Boost Cart is the slide-out cart Boost runs on your store. It’s the original Boost product — the foundation the whole platform is built on, refined on the carts of leading CPG brands into the best cart experience on Shopify. It does three jobs your cart should already be doing and probably isn’t: it shows shoppers a reward they can unlock by adding more (up to four tiers), recommends complementary products in real time, and turns a one-time buyer into a subscriber with a single tap — in a fast, brand-matched slide-out cart that never makes the shopper leave the page.The problem it solves
Your cart is the highest-leverage real estate in your store — every buyer passes through it. A default Shopify cart wastes it, and the cart apps that try to fix it waste it differently:- The default cart is a dead-end. It holds what the shopper picked and sends them to checkout — no nudge to a bigger order, no product discovery, no path to subscribe. Every cart that checks out at the bare minimum is money you already paid the traffic for, left on the table.
- The second-tier cart apps deliver a worse experience. Rebuy, AfterSell, and the other cart upsell apps bolt features onto a clunky, generic cart — slow to load, awkward on mobile, fighting your branding. They add upsells at the cost of the experience, and shoppers feel it.
- None of them are built for the way CPG sells. Reorders, bundles, daily regimens, subscribe-and-save — the typical cart treats a supplement buyer the same as a one-off impulse purchase.
How it works
The Boost Cart works on every shopper automatically, the moment they add an item — nothing for the shopper to set up, nothing to learn. 1. The reward bar shows what’s next. The shopper sees how close they are to the next reward — “Spend $25 more for free shipping” — with a progress bar that updates live as they add items. Set up to four tiers, mixing free shipping, discounts, and free gifts. 2. They add more to unlock it. A $50 cart becomes a $75 cart because the shopper can see the reward one step away. The nudge that grows order value is built into the cart itself. 3. AI recommends the next product. Built on Shopify’s recommendation engine, Boost reads the cart in real time and suggests complementary products the shopper didn’t think to add — the curated cross-sell that lifts order value without feeling pushy. 4. One tap turns a buyer into a subscriber. A shopper can switch any eligible product to a subscription right in the cart — no separate flow, no second page — through the subscription provider you already run. You set the tiers, the rewards, the recommendations, and the cart’s look in a setup wizard — no code, brand-matched, with a live preview before you go live.
What you get
- A bigger average order. Reward tiers turn “spend $25 more for free shipping” into real dollars — the $50 cart that becomes $75, on traffic you already paid for.
- More subscribers, from the cart. Letting a one-time buyer subscribe in a single tap, at the moment of purchase, converts more of them than any post-sale email ever will.
- Product discovery that lifts AOV. Real-time recommendations surface the next product a shopper wants, so orders grow and the store feels curated for them.
- One cart instead of three apps. Reward bar, cross-sells, and subscribe are native to one cart — one bill, one experience, nothing fighting your theme.
Works with your stack
- Is this an add-on? No — the Boost Cart is the foundation, included in every Boost plan. It’s the original Boost product the rest of the platform builds on.
- Does it replace my current cart? Yes. Whether you’re on the default Shopify cart or a second-tier cart app like Rebuy or AfterSell, the Boost Cart replaces it — you only run one cart, and Boost is the one merchants say is the best on Shopify.
- Do I have to switch subscription apps? No. Switch-to-subscription runs through the provider you already use — Recharge, Skio, and other leading apps. The cart just adds the one-tap experience on top.
- Is it hard to set up? No. A setup wizard walks you through tiers, rewards, recommendations, and styling in minutes — no code, with a live preview.
Ready to turn your cart into a conversion engine?
Run the best cart on Shopify — bigger orders, real product discovery, and one-tap subscribers, in the experience the second-tier apps can’t match.Continue to Explore
Bundle Builder
Let shoppers build their own box and watch average order value climb.
Checkout Upsells
One more “yes” at the moment a customer is primed to buy.
Moneyboard
See the revenue your cart drives, in plain dollars.