Best Frequently Bought Together Apps for Shopify in 2026
The best frequently bought together apps for Shopify in 2026 are Libautech Bundles & Upsell for FBT as part of a full offer stack, Essential Upsell & Cross Sell for the best-rated dedicated widget, Selleasy for the largest review base and free entry, Frequently Bought Together by Code Black Belt for AI pairing on big catalogs, and Wiser for site-wide personalized recommendations. All but Wiser are Built for Shopify.
Key takeaways
- A frequently bought together widget shows two or three products people buy as a set, with one combined add to cart and usually a small bundle discount. It is the highest-intent cross-sell placement on the store.
- The choice comes down to recommendation logic and scope: manual pairs for your bestsellers, AI pairing for a long catalog, and whether you want a single widget or a site-wide recommendation layer.
- The strongest all-round pick is Libautech Bundles & Upsell, from $9.99 a month. We make it, so the section below names a different app whenever it fits your case better.
- Essential holds the highest rating at 5.0 across more than 2,000 reviews; Selleasy has the deepest review base; Code Black Belt is the original AI pairing specialist.
- FBT only earns if the offer created the bigger order rather than discounting one that would have happened anyway. The calculator below sizes the upside at your own numbers.
On this page
- What a frequently bought together widget does
- Who needs one, and why
- How we ranked, and our disclosure
- The 5 best FBT apps compared
- Best app for each situation
- Manual vs AI, and theme compatibility
- How to set up FBT that converts
- Common mistakes to avoid
- How to switch apps without losing offers
- Calculator: what FBT is worth
What a Frequently Bought Together Widget Actually Does
A frequently bought together block shows two or three products that are commonly purchased together, with a single combined add to cart button and usually a small bundle discount. Amazon made the pattern famous. On Shopify it sits below the add to cart button on the product page, and it works because it meets the highest-intent shopper you have, someone already buying, and offers the item they would otherwise have hunted for. Shopify themes can show generic related products, but true FBT with a combined add to cart and a bundle discount needs an app. The two things that separate the apps are how the pairings are chosen (a merchant sets them by hand, or an algorithm learns them from order history) and how many placements the app covers beyond the product page.
Who Needs a Frequently Bought Together App, and Why?
FBT is the highest-converting cross-sell when your products have natural companions. Here is who gets the most from one, and why.
| Store type | Why FBT works |
|---|---|
| Products with natural companions coffee and filters, camera and case, skincare routines | The pairing is obvious, so a combined add to cart with a small saving is an easy yes. |
| Fashion and apparel | Complete-the-look outfits: shoppers add the matching item they would have gone looking for anyway. |
| Large catalogs | AI trained on order history surfaces non-obvious pairs a human would never map by hand. |
| Stores chasing higher AOV | Adds a second item to orders that already convert, with no sitewide discount. |
| Gift and hamper categories | The "buy these together" framing does the bundling the shopper wanted to do anyway. |
Who can skip it: single-product stores, and catalogs where nothing naturally pairs with anything else. If your products are not bought in combinations, an FBT widget shows weak matches and the discount is wasted.
How We Ranked These Apps, and a Word on Bias
The disclosure first. We make Libautech Bundles & Upsell, one of the apps here, so we have a commercial interest in it ranking well. We handle that in two ways. Our own figures are read from our live App Store listing, held to the same check as everyone else's, and we name a different app whenever it is the better fit, which the best app for each situation section does. If you want the single strongest dedicated widget, that is Essential, not us, and we say so below.
How we scored. Every app was assessed on five things:
- The widget itself. A clear combined add to cart on the product page, with the bundle and its saving obvious at a glance.
- Recommendation logic. Whether you can set manual pairs for your bestsellers and lean on AI for the long tail, rather than being locked into one.
- Placement breadth. Whether FBT is all it does, or it also covers cart and post-purchase, where the same shopper can be offered more.
- Rating and review depth. A high rating across hundreds or thousands of reviews beats a perfect score across a handful.
- Performance and integration. Whether it installs as an Online Store 2.0 theme app block and carries the Built for Shopify badge.
What this is not. We have not run all five apps side by side on one store, and we will not pretend we have. Our depth comes from building in this category and from each app's live App Store listing, verified on the date shown below the table. Where a claim could not be verified, we left it out.
The 5 Best Frequently Bought Together Apps Compared
| App | Recommendation logic | Also covers | Pricing | Rating | Built for Shopify |
|---|---|---|---|---|---|
| Libautech Bundles & Upsell | Manual pairs and rules | Bundles, quantity breaks, cart, checkout, post-purchase | From $9.99/mo, 7-day trial | 4.9 (35) | Yes |
| Essential Upsell & Cross Sell | Manual and automatic | Product page, cart, post-purchase upsells | Free plan, from $9.99/mo | 5.0 (2,199) | Yes |
| Selleasy | Manual and AI | Cart and post-purchase, multiple layouts | Free to install, from $9/mo | 4.9 (2,478) | Yes |
| Frequently Bought Together (Code Black Belt) | AI trained on order history, plus manual | Bundle discounts, widget placements | Free plan, from $14.99/mo | 4.9 (1,030) | Yes |
| Wiser | AI recommendations, site-wide | Recently viewed, top sellers, search, post-purchase | Free to install, from $9/mo | 4.9 (513) | No |
Ratings, review counts and prices read from each app's live Shopify App Store listing on August 6, 2026. Confirm current numbers on the listing before you install, since app pricing and reviews change.
1. Libautech Bundles & Upsell
Bundles & Upsell shows frequently bought together recommendations with a one-click combined purchase, set as manual pairs and rules, and it is Built for Shopify certified.
Strengths: FBT rarely stays a store's only offer type. This runs it alongside bundles, quantity breaks, cart, checkout and post-purchase offers on one subscription, with each offer's revenue tracked separately, so you do not stack three apps as you grow.
Watch-outs: the smallest review base here at 35, so less long-run data than the dedicated widgets, and no permanent free plan. Pairings are manual, so on a very large catalog you would do more setup than with an AI specialist.
Best for: stores that want FBT as part of a complete AOV strategy rather than a single widget.
2. Essential Upsell & Cross Sell
Essential holds a 5.0 rating across 2,199 reviews with a free plan, and the FBT widget is its core product: frequently bought together bundles with a combined add to cart, plus product-page, cart and post-purchase upsells.
Strengths: the highest rating at the deepest scale of any dedicated widget here, a polished FBT block, a genuine free plan, and Built for Shopify certification.
Watch-outs: it does not extend into bundles or quantity breaks, so if you want those too you would add a second app.
Best for: stores that want the strongest, best-proven dedicated FBT widget and little else.
3. Selleasy
Selleasy (4.9 across 2,478 reviews, the deepest review base here) supports both automatic recommendations and manual pairing, is free to install, and adds cart and post-purchase placements with several widget layouts.
Strengths: the largest review base of any app on this list, free to install with paid tiers only as you scale, multiple layouts, and Built for Shopify certification.
Watch-outs: the breadth of layouts and placements is powerful but takes a little longer to configure than a single-widget app.
Best for: small stores that want to start free and grow into cart and post-purchase upsells.
4. Frequently Bought Together by Code Black Belt
Running since 2017, this is the app that brought Amazon-style FBT to Shopify. Its AI trains on your store's actual order history to surface pairings you would not map by hand, with manual fallback, and it holds a 4.9 rating across 1,030 reviews.
Strengths: the deepest AI pairing, trained on your real orders rather than a generic model, with flexible bundle discounts and Built for Shopify certification. The category's original specialist.
Watch-outs: the AI needs order history to work well, so a newer store with thin data gets weaker matches until it accumulates orders. It is FBT-focused, not a full upsell suite.
Best for: stores with a large catalog and meaningful order history where manual pairing does not scale.
5. Wiser
Wiser goes beyond the FBT block into full-page personalized recommendations: recently viewed, top sellers and AI picks across home, product, cart and post-purchase. It holds a 4.9 rating across 513 reviews and is free to install.
Strengths: a recommendation layer across the whole site rather than a single widget, AI-driven, and free to install.
Watch-outs: it is the only app here without the Built for Shopify badge, and its breadth means the FBT block is one feature among many rather than the core focus.
Best for: larger catalogs investing in site-wide personalization, not just a product-page widget.
Best App for Each Situation
The overall ranking is a starting point. The right app depends on your store, so here are the picks by situation, and where the honest answer is not our app, we say so.
Best dedicated FBT widget: Essential Upsell & Cross Sell. A 5.0 rating across more than 2,000 reviews, with the widget as its whole product, is the strongest social proof here.
Best free to install: Selleasy and Wiser. Both are free to install and add paid tiers only as you scale, so you can prove FBT earns before you pay.
Best for large catalogs and AI pairing: Frequently Bought Together by Code Black Belt. When you have thousands of SKUs and real order history, AI pairing beats anything you would map by hand.
Best for site-wide recommendations: Wiser. If you want personalized recommendations on the home, cart and post-purchase pages too, not just the FBT block, Wiser covers the surface.
Best if FBT is one piece of a wider AOV plan: Libautech Bundles & Upsell, our app, because it runs FBT next to bundles, quantity breaks and post-purchase offers on one bill.
Which frequently bought together app is right for you?
Pick what matters most and we will point you to the best fit. Often it is not ours, and we say so.
Manual vs AI Recommendations, and Theme Compatibility
Manual or automatic. The two ways an app chooses the pairing suit different stores. Manual pairs, where you set the companions by hand, are best for your bestsellers and for stores with little order history, because you know the pairing is right. AI or automatic recommendations learn from behaviour and order history, and they win on large catalogs where mapping every product by hand is impossible. The best setup is both: manual for the products that matter most, AI for the long tail. Most apps above support both.
Placement and theme. The standard spot for an FBT widget is directly below the add to cart button on the product page, where purchase intent is highest. The apps that render as an Online Store 2.0 theme app extension load with the page rather than blocking it, and survive a theme switch because the offer lives in the app, not hard-coded into the theme. The Built for Shopify badge, which four of these five carry, requires meeting Shopify's bar on performance, design and integration. If the FBT bundle carries a discount, it applies according to your store's discount combination settings, so test a checkout before a sale to be sure it does not double up with a code.
How to Set Up Frequently Bought Together That Converts
Three rules from watching merchant data:
- Pairs beat algorithms at first. Under roughly 500 orders of history, algorithmic pairing has too little data and shows weak matches. Start with manual pairs you know make sense, then let AI take the long tail as data builds.
- Keep the discount light. FBT sells on convenience, not price. A 5 to 10 percent bundle discount is plenty; deeper than that gives away margin on items the shopper was already inclined to add.
- Place it below add to cart. That is where intent is highest. A widget buried in the footer or on a separate tab gets ignored.
Common Mistakes With Frequently Bought Together
- Pairing unrelated products. An algorithm with no data, or a careless manual pick, shows a mug next to a phone case. Weak matches train shoppers to ignore the widget.
- Discounting too deep. A big FBT discount subsidises items people would have added anyway. Keep it to 5 to 10 percent.
- Wrong placement. If the widget is not near the add to cart button, it does not get seen. Do not tuck it below reviews.
- Running AI on a thin catalog. With few products or little order history, automatic pairing has nothing to learn from. Use manual pairs until the data arrives.
- Ignoring discount stacking. If the FBT bundle discount can combine with a sitewide code, a sale can double-discount. Set the combination rules before the promotion.
How to Switch Apps Without Losing Your Offers
Moving from one FBT app to another is low-risk if you sequence it. Install the new app and build your pairs on a handful of top products first, but do not publish them yet. Keep the old app live while you confirm the new widget renders below the add to cart button and the combined purchase works at checkout. Then publish the new offers and, in the same session, disable the old app's widget so two do not show at once. Only uninstall the old app once you have watched a day of live orders on the new one, and check the product template in the theme editor for a leftover app block after you remove it.
What Is Frequently Bought Together Worth to You?
FBT adds revenue only when a shopper accepts the offer. Enter your monthly orders, the share that take an FBT offer, and the value they add, and the calculator sizes the monthly and annual upside at your own numbers.
Extra revenue a month
$1,000
Extra revenue a year
$12,000
That is about 40 accepted offers a month at $25 each. It is gross added revenue, before any bundle discount: a 10 percent FBT discount trims it by roughly that much, and the figure only holds if the offer actually created the bigger order rather than discounting one that would have happened anyway. You can run FBT free from Bundles & Upsell.
Think your app belongs on this list?
We review submissions against the same criteria we rank on and add the ones that qualify. If you build a Shopify app in this category, send it in.