Best Shopify upsell & cross-sell apps for 2026

Choosing among the best Shopify upsell apps comes down to where you want offers to appear (product page, cart drawer, cart page, checkout, or post-purchase), how much design control you need, and whether you'd rather run one app or several. Below are seven strong options, starting with our pick for stores that want everything in one place.

1. AI Growth Kits (Upsell & Cross Sell Booster) — best all-in-one

AI Growth Kits places upsells and cross-sells across every high-intent surface — product page, cart drawer, cart page, and checkout — and pairs them with a one-tap add-to-cart so shoppers never lose momentum. What sets it apart is scope: the same app also handles bundles and build-a-box, reviews and social proof, lead-capture forms, SEO tools with AI blog generation, and analytics. That means the upsell you show can sit next to the reviews that build trust and the bundle that lifts units per order, all managed from one dashboard.

It works on any theme, including custom cart drawers, by targeting a CSS selector or container — so you're not limited to a handful of supported themes. Plans are Starter $59, Growth $129, and Advanced $299 per month, with checkout upsells on the higher tiers. For teams tired of stitching five apps together, the all-in-one approach is the real edge.

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2. ReConvert

ReConvert is well known for post-purchase and thank-you-page upsells. It offers a drag-and-drop funnel builder and one-click add-ons after checkout, which is a low-friction moment to increase order value. A free plan is available and paid plans scale with order volume. A good fit if your priority is squeezing more from the post-purchase page specifically.

3. Zipify OneClickUpsell

From the team behind Zipify Pages, OCU focuses on pre- and post-purchase one-click offers and funnel testing. It's popular with stores running a more direct-response, funnel-driven approach and includes split testing on offers. Paid plans only, positioned toward higher-volume merchants.

4. Bold Upsell

One of the longest-running upsell apps on Shopify, Bold Upsell handles true upsells (upgrade to a better version) and cross-sells with funnels that can chain multiple offers. It's a mature, dependable option with a solid track record. Paid plans available.

5. Honeycomb Upsell & Cross-Sell

Honeycomb offers customizable upsell and cross-sell funnels across the funnel, including post-purchase, with A/B testing built in. It has a generous free tier for smaller stores and is easy to get started with. A good middle-ground option.

6. Frequently Bought Together

This category of app (popularized by Code Black Belt) adds Amazon-style "frequently bought together" bundles to the product page with smart recommendations. It's narrowly focused but very effective at that one job. Free plan available with paid tiers.

7. Selleasy

Selleasy provides pre-purchase and post-purchase upsells and cross-sells with a clean, unobtrusive design, plus multi-language support. It has a free plan and is a favorite for merchants who want tasteful, native-looking offers. Paid plans scale up from there.

How to choose

If you only need post-purchase offers, a focused tool like ReConvert or Zipify does the job. If you want product-page recommendations, Frequently Bought Together or Selleasy are clean choices. But if you want upsells and the reviews, bundles, and forms that make them convert — without running five subscriptions — a consolidated app wins on cost and cohesion.

Whichever you pick, pair it with a strong cart-drawer strategy and a plan to increase average order value. And if bundles are on your roadmap, see the best Shopify bundle apps.