Best Checkout apps for Shopify

Essential Bundles & Upsells · since 2024 · Upsell and cross-sell

Lift AOV with Frequently Bought Together Upsell and Cross-sell

Kaching Bundles & Upsells · since 2024 · Checkout

Boost AOV with a custom slide cart featuring upsells, urgency timer, free shipping/gift bar, etc.

506 · since 2019 · Promotions

Auto-add free gifts and BOGO offers with smart targeting rules

Essential Apps · since 2022 · Upsell and bundles

Lift AOV via Free Shipping Bar Goal Cart Upsell and Cross Sell

AOV.ai · since 2025 · Upsell and cross-sell

Slide cart drawer with cart upsell, sticky cart, free shipping

Essential Apps · since 2025 · Checkout

Add a cart drawer with AI upsells, reward bar, free shipping goals and sticky add to cart bar. Customize with HTML and CSS. Markets and 24/7 support.

App HQ Pte. Ltd. · since 2019 · Marketing and conversion

Lift AOV via slide cart drawer upsell, rewards bar, free gifts

E-TRADE PARTNER · since 2024 · Upsell and cross-sell

SMART Checkout Rules helps merchants control the checkout experience using flexible conditions. Validate checkout or hide, block, sort, or rename p...

Egohub Team · since 2024 · Checkout

Boost Sales w Slide cart drawer, Rewards bar, Free Gifts, etc

E-TRADE PARTNER · since 2024 · Checkout

Hide, sort, reorder, rename payment methods with payment rules

Melon · since 2025 · Checkout

Enforce Minimum Order Value (MOV), Minimum Order Quantity (MOQ) and maximum limits. Perfect for B2B & Wholesale.

Kaching Bundles & Upsells · since 2024 · Cart customization

Offer one-click upsells after checkout to boost your AOV. Easy setup, seamless customization!

Avada · since 2024 · Finding products

Order limits with min/max & limit quantity for B2B wholesale

Nitro Apps · since 2023 · Checkout

AI builds your store design; CRO tools grow your revenue

HeroSoftware GmbH · since 2025 · Checkout

Payment rules for better conversion rate: hide, sort & rename

Xboost · since 2024 · Checkout

Slide Cart with Free Shipping Bar, Free Gift & Product Add-ons

StoreSpark · since 2023 · Cart customization

Customize checkout behavior with conditional powerful rules

UpsellPlus · since 2021 · Checkout

Grow AOV with cross sell, post purchase & checkout upsell

Piric Group · since 2024 · Payments

Set COD Fee & Limit Cash on delivery with conditions

Square Apps · since 2024 · Cart customization

Keep the Sticky Add to Cart Bar visible on scroll to boost AOV