The 10 Best Product Addons Apps for Shopify

The top 10 apps merchants see when they search the Shopify App Store for product addons, in the exact order the store ranks them. Only Shopify's organic ranking is shown, never sponsored ads.

Updated September 8, 2026 · Organic ranking

Maintained by Rankbase, built by a Shopify app developer

Shopify recommends products for free, but only one of the two kinds it supports is automatic. The "related" kind, the substitutes that sit under a heading like "you may also like", are generated for you from purchase history, falling back to product descriptions on English storefronts and then to collections. The complementary kind, the add-ons that make up a genuine frequently-bought-together block, are never generated at all: every pairing is chosen by hand, one product at a time.

The second gap is that a native recommendation is inert. It hands the theme a list of products and nothing else, with no bundle price, no discount and no way to add the whole set to the cart in one action. Those are the two things this category is really selling: pairings nobody had to sit and choose, and the checkout mechanics that make accepting one a single click.

1

Upsell & Cross Sell — Selleasy

★ 4.9 (2,675 reviews) · Free to install

In cart upsell, checkout upsell, product addons bundle for AOV
Built for Shopify
2

EPA‑ Easy Product Addons

★ 5.0 (291 reviews) · Free plan available

Allow customers to purchase addon products. Boost AOV
3

Essential Upsell & Cross Sell

★ 5.0 (2,374 reviews) · Free plan available

Lift AOV with Frequently Bought Together Cross-sell Upsell App
Built for Shopify
4

Product Addons Upsells engine

★ 5.0 (3 reviews) · Free

Product add-ons, upsells & group add-ons for higher AOV
5

Smart Fees & Product Addons

★ 5.0 (6 reviews) · Free trial available

Add product fees, surcharges, and add-ons with smart rules
6

XB: AI Cart Upsell Cart Drawer

★ 5.0 (197 reviews) · Free to install

Slide Cart with Free Shipping Bar, Free Gift & Product Add-ons
Built for Shopify
7

Koala Free Gift BOGO Upsell

★ 4.9 (380 reviews) · Free trial available

Set up BOGO, free gifts, upsells, pop-ups, and product add-ons
Built for Shopify
8

Easify Box Bundle Builder BYOB

★ 5.0 (285 reviews) · Free plan available

Mix and Match bundle app to Build Your Own Bundle products
Built for Shopify
9

GA: Product Addons+Gift Wrap

★ 4.4 (80 reviews) · Free to install

Add Gift & Product Addon to Every Order
10

MBC Mix and Match Bundles App

★ 4.9 (374 reviews) · Free to install

Create buy one get one & Buy X Get Y bundle products easily
Built for Shopify

Compare the top 3 head-to-head

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What to look for in a Product Addons app

Whether you have the history to recommend from: Purchase-history recommendations need previous sales to learn from, and orders imported from another platform are not counted. A store that has just migrated is starting blind, which is exactly when an app's own engine is worth paying for, and also exactly when it has no more to work with than Shopify does.
Automated pairing, or a nicer way to pair by hand: Both exist in this category and they are priced as though they were the same thing. If your catalogue is small and stable, a good bulk editor over the native complementary field may be all you need. If it turns over constantly, hand-picking is the thing you are trying to escape, so make sure that is what you are buying.
The discount is most of the product: Since the native version cannot price a bundle at all, the offer logic is the real purchase: how the discount is expressed, and how it behaves next to the other promotions you run. Ask what happens when a customer already holds a code, because that is where these quietly disagree with each other.

Frequently asked questions

Which is the best Product Addons app for Shopify?

Based on the Shopify App Store's own organic ranking for "product addons", Upsell & Cross Sell — Selleasy currently holds the #1 spot, with a 4.9 star rating across 2,675 reviews. The best choice for your store still depends on your requirements, so compare the top results above.

How is this ranking determined?

We record the organic results merchants actually see when searching the Shopify App Store for "product addons", refreshed daily. Shopify's own sponsored ("Ad") results are excluded, so positions reflect its real search ranking rather than paid promotion. Source: the Shopify App Store search results for "product addons", you can verify the current ranking there yourself.

Which Product Addons apps are Built for Shopify?

6 of the top 10 product addons apps hold the Built for Shopify badge: Upsell & Cross Sell — Selleasy, Essential Upsell & Cross Sell, XB: AI Cart Upsell Cart Drawer, Koala Free Gift BOGO Upsell, Easify Box Bundle Builder BYOB and more.

What does the Built for Shopify badge mean?

Built for Shopify
Built for Shopify is the highest level of recognition Shopify awards an app. To earn the badge, an app must meet Shopify's standards for safety, performance, ease of use, and proven usefulness: it cannot slow down the admin, storefront, or checkout, must integrate seamlessly into the Shopify admin, and must demonstrate quality through installs, reviews, and ratings over time. When comparing similar apps, preferring ones with the badge is a safe default. Learn more about the Built for Shopify badge →

As of September 8, 2026, the top-ranked product addons app on the Shopify App Store is Upsell & Cross Sell — Selleasy, with a 4.9 star rating across 2,675 reviews. 6 of the top 10 carry the Built for Shopify badge, and the average rating is 4.9 stars across 6,665 reviews.

Related keyword rankings

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Built by Craftshift

Rankbase is made by Craftshift, a Shopify Partner building apps for product images, variants, and bulk catalog work. We built Rankbase to track the App Store rankings of our own apps first, then opened it to other developers, and this directory grew out of that work. The rankings on these pages are Shopify's own organic search results; we never edit them, including for our own apps.

Craftshift apps on the Shopify App Store