How to create product bundles on the Booster theme (checkout-safe)

Booster, by Booster Apps, is a conversion-focused premium Shopify theme popular with dropshipping and single-product stores. Its selling point is a stack of built-in conversion widgets — countdown timers, upsells, quantity breaks — baked right into the theme. That’s also the catch: many of those offers live purely in storefront JavaScript. This guide shows how to create product bundles on the Booster theme that are genuinely checkout-safe, where the price shown is the price charged.

Two ways to bundle on Booster

Shopify’s native Bundles app packages different products into one fixed purchase. It’s free and checkout-safe, but rigid — fixed contents, its own product page, and no quantity logic.

A product-page bundle widget shows quantity offers — BOGO, 3-for-2, volume tiers — directly on the product page. Booster already has one of these built in, but its enforcement is storefront-only. The free Profit Flow AOV Bundle does the same job with server-side enforcement, so the offer can’t be bypassed in the cart.

Adding the offer block on Booster — and disabling the overlaps

This is the important part on Booster: because the theme is packed with conversion widgets, the goal is to run one offer, not two competing ones.

1. Install Profit Flow AOV Bundle from the Shopify App Store.
2. Open the Booster theme editor and choose a product template.
3. In the main product section, disable Booster’s native bundle / quantity-break / upsell widget for that offer — otherwise shoppers see duplicate deals that fight each other.
4. Add the Profit Flow app block where that native widget used to sit.
5. Configure your deal — a BOGO, 3-for-2, or a tiered volume discount.

Leaving both widgets on is the single most common Booster mistake: two “buy 2, get 1 free” boxes, different logic, and a cart total nobody trusts. Turn the native one off.

Keep it checkout-safe

Here’s the real reason to switch. Booster’s built-in offers are enforced in JavaScript on the storefront. If a shopper edits the cart, refreshes, or lands via a direct link, the “free” unit can slip through — charged when it shouldn’t be, or given away when the shopper never qualified. On high-traffic dropshipping stores, that leakage is expensive.

Profit Flow enforces every offer with a Shopify Function, the same server-side discount engine Shopify uses for its own promotions. The discount is recalculated at checkout, so it can’t be tricked. What the shopper sees is what they pay.

Wrapping up

Booster gives you plenty of offer widgets — the upgrade is making them hold at checkout. Disable the native overlap, add the block, and let the Function guarantee the price. For the full picture, see our hub on how to create product bundles on Shopify.

Ready to replace Booster’s JS-only upsells with checkout-safe bundles? Install the free Profit Flow AOV Bundle, or book a free store audit and we’ll untangle the overlapping widgets for you.