6 Best Shopify Upsell Apps to Increase AOV (2026)

The cheapest sale you’ll ever make is the one to a customer who’s already checking out. Getting a new visitor to the cart is expensive; adding a warranty, a matching product or a volume bundle to an order that’s already happening is close to free margin. That’s the entire promise of an upsell app: a measurable lift in average order value (AOV) without spending another dollar on traffic.

But the category is crowded, and the apps are not interchangeable. Some only fire on the thank-you page, some only live in the cart, and only a few cover the whole journey with recommendations smart enough to be worth showing. Below are the six best Shopify upsell apps for 2026, ranked on placement coverage, recommendation quality, ease of setup and price.

Quick comparison

1. Candy Rack: The Best All-in-One Upsell App

Candy Rack takes the top spot because it doesn’t make you choose where upselling happens. Built by Digismoothie, it covers the product page, a built-in cart drawer, checkout, post-purchase and the thank-you page — seven placements in total — from a single install. That breadth is the difference between a one-off order bump and a compounding AOV lift across the whole funnel.

Two things set it apart. First, the built-in cart drawer means you don’t need a separate slide-cart app to run in-cart upsells and quantity breaks. Second, it gives you a choice of recommendation engines: Shopify’s native algorithm, Candy Rack’s own AI, or Google Gemini. If one engine’s suggestions underperform for your catalog, you switch rather than settle.

Why it’s #1:

• Full-funnel coverage: Offers on the product page, cart drawer, checkout, post-purchase and thank-you page, all from one dashboard.

• Built-in cart drawer: A fast, native slide-out cart with upsells and a rewards bar, so you consolidate two apps into one.

• AI you can choose: Candy Rack AI or Google Gemini picks the most relevant product to boost AOV.

• Volume bundles & quantity breaks: Turn single-unit orders into multi-unit ones with tiered pricing.

Pros:

• The widest placement coverage of any app on this list, managed from one place.

• Native cart drawer removes the need for a separate slide-cart app.

• Choice of AI engines instead of a single black box, plus A/B testing via Intelligems.

• Built in the EU, fully GDPR-compliant, with support across 13 languages.

Cons:

• Paid plans are priced by monthly order volume rather than a flat fee.

• The depth of features means a slightly longer initial setup than a single-purpose app.

Pricing: Free on development and trial stores. Paid plans start at $29.99/mo (Lite, up to 50 orders), $39.99/mo (Starter) and $59.99/mo (Growth). 8-day free trial and 60-day money-back guarantee.

2. ReConvert (Upsell.com)

ReConvert built its reputation on the thank-you page and post-purchase flow, and it’s still the reference point there. It turns the order-confirmation screen into an offer surface and layers in one-click post-purchase upsells, so shoppers can add to an order without re-entering payment details.

Key Features:

• Drag-and-drop thank-you page editor.

• One-click post-purchase upsell and downsell funnels.

• Segmentation and trigger rules by product, cart value and customer.

Pros: Deep, battle-tested post-purchase functionality with a generous free plan.

Cons: Strongest after the sale; less focused on pre-purchase cart upsells, and advanced funnels take some configuration.

Pricing: Free plan available; paid plans from $4.99/mo.

3. Selleasy — Upsell & Cross Sell

If your priority is Amazon-style “frequently bought together” bundles, Selleasy (by Logbase) is the cleanest way to get them. It’s known for tasteful, low-friction cross-sells that sit on the product and cart pages without hijacking the experience, which is why its rating stays high across thousands of reviews.

Key Features:

• Frequently-bought-together and product add-on bundles.

• Pre-purchase upsells on product and cart pages, plus checkout and post-purchase offers.

• Multi-language and multi-currency support with a light footprint.

Pros: Very easy to set up, clean on-brand widgets, and free to install.

Cons: Less depth on one-click checkout funnels and fewer recommendation-engine options than Candy Rack.

Pricing: Free to install; usage-based paid tiers.

4. One Click Upsell — Zipify OCU

Zipify OCU comes from the team behind a large DTC brand, and it shows in its funnel-first approach. The headline feature is one-click post-purchase upsells, with slide-cart and checkout upsells rounding out the funnel. It’s aimed at merchants who want to build and test offer sequences deliberately.

Key Features:

• One-click post-purchase upsell funnels.

• Slide-cart and checkout (Shopify Plus) upsells.

• Dynamic AI offers and built-in A/B testing.

Pros: Full-funnel offer building with a testing mindset, and a low starting price.

Cons: The interface is geared to power users building funnels, and it has fewer reviews than the category leaders.

Pricing: Free plan available; paid plans from $8/mo.

5. Kaching CartDrawer Cart Upsell

If the cart is where you want to focus, Kaching turns the default cart into a customizable slide-out drawer built to lift AOV at the moment of decision. It stacks an upsell slider, urgency timer, free-shipping bar and toggles like gift wrapping and shipping protection, all with a strong eye on UX.

Key Features:

• Customizable slide cart with an upsell slider for frequently bought together products.

• Free-shipping / free-gift progress bar and countdown urgency timer.

• One-toggle add-ons like gift wrap and shipping protection, plus trust and payment icons.

Pros: Excellent cart experience, no coding required, and a 5.0 rating across 1,300+ reviews.

Cons: Focused on the cart, so you may still want a separate tool for post-purchase or checkout upsells (Candy Rack bundles both).

Pricing: Free plan available; free trial available on paid tiers.

6. Essent Cart Drawer Cart Upsell

Essent (by Essential Apps) is another strong slide-cart option, pairing in-cart upsells and cross-sells with reward bars and spend tiers that unlock free shipping, free gifts and automatic discounts as customers add more to their cart. A sticky add-to-cart bar keeps the offer in view on long product pages.

Key Features:

• Slide-cart drawer with reward bar, free-shipping goals and spend tiers.

• In-cart upsells and cross-sells powered by Shopify AI or hand-picked products.

• Sticky add-to-cart bar, countdown timer and full multi-language / multi-currency support.

Pros: Highly customizable, strong 5.0 rating, and responsive on-demand customization from the developer.

Cons: Like other cart-drawer apps, it concentrates on the cart rather than the full post-purchase funnel.

Pricing: Free plan available; free trial available on paid tiers.

Which Upsell App should you choose?

Selecting the right app depends on your goal:

• If you want one app to cover the whole journey: Choose Candy Rack. It’s the only pick here that spans the product page, a built-in cart drawer, checkout, post-purchase and thank-you page, with a choice of recommendation engines to tune against your catalog.

• If you care most about the thank-you page and post-purchase: ReConvert is the specialist.

• If you want simple, tasteful “bought together” bundles: Go with Selleasy.

• If you want to build and split-test offer funnels: Zipify OneClickUpsell rewards that approach.

• If your whole strategy lives in the cart: Kaching and Essent are both excellent slide-cart options.

For most stores looking to raise AOV without bolting on three separate tools, Candy Rack is the best all-round choice in 2026 — the placement coverage, the built-in cart drawer and the flexible AI recommendations do in one app what others split across several.

Don’t upsell to an empty shelf

Upselling only works when a product is in stock and a shopper is on the page. The demand that leaves because an item is sold out never reaches your cart, upsell or checkout.

That’s the gap Notify Me! Back in Stock closes: it captures shoppers on out-of-stock and pre-order products and brings them back the moment inventory returns. In our own data, 11.8% of alerted shoppers go on to purchase — recovered orders your upsell app can then grow.

Pair a strong upsell app with back-in-stock recovery and you’re working both sides of AOV: more orders, and bigger ones.