Getting a new customer to your store costs money every time, through ads, content or discounts. Getting a customer who is already buying to add one more item costs far less. That is why average order value is one of the quickest numbers to move: you do not need more traffic, just a better offer at the right moment.

Upsell and cross-sell apps put those offers in front of shoppers automatically. An upsell suggests a better or larger version of what the shopper picked. A cross-sell suggests something that goes with it, such as a case with a phone or a refill with a starter kit. The apps place these offers on product pages, in the cart, at checkout or after the payment goes through, and the best ones pick products based on real order data.

Below, we compare five well-known upsell and cross-sell apps for Shopify and WooCommerce, list what each costs according to its official pricing page or app listing, and explain which store each one suits. If you are also working on the checkout itself, read our guide to the best checkout optimization software.

Editorial note: this article contains no affiliate links. Prices and features were checked against each vendor’s official pages on November 7, 2026, and we have not hands-on tested these tools. Vendors change plans often, so confirm current pricing before you buy.

Why Relevant Offers Raise Order Value

Upsells only work when the offer fits the shopper. A random product in the cart feels like an ad; a matching accessory feels like help. McKinsey’s research on personalization, published in November 2021, found that personalization most often drives a 10 to 15 percent revenue lift, with company-specific results ranging from 5 to 25 percent. Its consumer survey also shows that shoppers now expect relevant suggestions.

Two takeaways. First, the gain comes from relevance, not from showing more offers. An app that uses your order history to pick pairings will usually beat one that shows the same bestsellers to everyone. Second, McKinsey’s figures cover personalization broadly, not upsell apps alone, so use them as a reason to test, not as a forecast for your store.

Before you install anything, look at what your customers already buy together. Your order history is the cheapest recommendation engine you have, and it tells you which offers to test first.

1. Frequently Bought Together — Best for Product Bundles on Shopify

Best for: Shopify stores that want Amazon-style “bought together” bundles on product and cart pages at a low monthly cost.

What Frequently Bought Together does well

• It builds bundle recommendations automatically with AI, and you can also set bundles by hand.
• Four bundle discount types are supported: percentage, fixed amount, free item and free shipping.
• It is rated 4.9 out of 5 from 1,212 reviews on the Shopify App Store, and it can show star ratings from review apps such as Judge.me, Loox and Yotpo.

Potential drawbacks

• The free plan is limited to 3 manual bundles with basic widget styling, so automatic recommendations need a paid plan.
• Paid plans are priced by monthly orders, so the cost rises as your store grows.
• It focuses on product and cart page bundles, not post-purchase or checkout offers.

Pricing

Free (Starter): $0 for up to 3 manual bundles. Professional I: $9.99/month for up to 50 orders a month. Professional II: $24.99/month for up to 500 orders a month. Professional III: $39.99/month for more than 500 orders a month. Paid plans include a 14-day free trial. Source: Frequently Bought Together Shopify App Store listing, checked November 7, 2026.

Check Frequently Bought Together Pricing →

2. Zipify OCU — Best for Revenue-Based Pricing on Shopify

Best for: Shopify stores that want upsells across the product page, cart, checkout and thank-you page, and prefer to pay based on the upsell revenue the app produces.

What Zipify OCU does well

• All paid tiers include pre-purchase and post-purchase upsells, cart drawer and cart upsells, a product page offer widget and thank-you page upsells.
• AI upsells and A/B testing are included on every paid tier.
• Pricing is tied to upsell revenue rather than order volume, and the listing carries Shopify’s “Built for Shopify” badge.

Potential drawbacks

• In-checkout upsells require Shopify Plus.
• Costs climb in steps as upsell revenue grows, up to a cap of $999 a month.
• Its rating (4.5 out of 5 from 573 reviews) is lower than the other Shopify apps here, and some negative reviews mention pre-purchase offers not appearing with alternative payment processors.

Pricing

$9.95/month for up to $200 a month in upsell revenue. $25/month for $200 to $2,500 a month in upsell revenue, with the price rising in steps as revenue grows. $149/month for more than $2,500 a month in upsell revenue, and the listing says the price never goes past $999. Paid tiers include a 30-day free trial. A free plan is available only for development and partner stores. Source: Zipify OCU Shopify App Store listing, checked November 7, 2026.

See Zipify OCU Plans →

3. AfterSell — Best for Post-Purchase Offers on Shopify

Best for: Shopify stores that want one-click offers after the payment is complete, when the shopper has already committed.

What AfterSell does well

• The Post-Purchase plan includes one-click post-purchase offers, subscription upgrades, Smart Funnels, thank-you page offers and multivariate testing.
• Higher plans add AI cart building, rewards bars, free gifts, product page upsells and a product recommendation engine.
• It is rated 4.9 out of 5 from 1,118 reviews on the Shopify App Store.

Potential drawbacks

• There is no free plan for live stores; the free tier is for development and partner stores only.
• Checkout upsells and widgets are Shopify Plus only, according to the app description.
• Pre-purchase features start at $59.99 a month, which is a lot for a small store just testing upsells.

Pricing

Post-Purchase: $34.99/month. Pre-Purchase: $59.99/month. Complete (both, plus the recommendation engine): $79.99/month. Paid plans include a 30-day free trial, and the listing does not show order limits. The app is now listed under Rokt. Source: AfterSell Shopify App Store listing, checked November 7, 2026.

Explore AfterSell Pricing →

4. Product Recommendations for WooCommerce — Best for Smart Recommendations on WooCommerce

Best for: WooCommerce stores with a larger catalog that want rule-based and order-history recommendations across many store pages.

What Product Recommendations for WooCommerce does well

• Frequently Bought Together recommendations are built automatically from your order history.
• Recommendation engines combine filters (category, attribute, tag, price) with amplifiers such as popularity, rating and conversion rate, and you can place them in more than 20 locations including cart, checkout and thank-you pages.
• Built-in analytics report gross and net revenue and conversions by date, product and location.

Potential drawbacks

• The product page says it has not been optimized for block themes, so recommendations may not work as expected with them.
• It has few public reviews (15 at the time of checking, averaging 4.5 out of 5).
• It shows recommendations but does not include post-purchase one-click upsells.

Pricing

$99 for a 1-year subscription, or $158.40 for 2 years (a 20% saving). It is developed by Woo and requires WooCommerce 11.1 or higher. Source: WooCommerce Marketplace product page, checked November 7, 2026.

Check Product Recommendations Pricing →

5. UpsellWP — Best Free Start on WooCommerce

Best for: WooCommerce stores that want order bumps, cart cross-sells and bundles without paying upfront.

What UpsellWP does well

• The free version on WordPress.org includes checkout order bumps, cart page cross-sells, frequently bought together bundles, one-click upsells and next order coupons.
• It supports the WooCommerce block checkout and WooCommerce Subscriptions.
• It is rated 4.9 out of 5 from 150 reviews, with more than 5,000 active installations.

Potential drawbacks

• Post-purchase upsells, thank-you page offers, upsell popups and advanced analytics require the paid version.
• Its user base is smaller than the larger Shopify apps in this list.
• We could not confirm paid pricing on the official pricing page, so check it before you budget.

Pricing

Free version (UpsellWP Lite): $0 from WordPress.org. We could not confirm current paid plan prices on the official UpsellWP pricing page, so check upsellwp.com/pricing before buying. Source: UpsellWP listing on WordPress.org, checked November 7, 2026.

See UpsellWP Plans →

Upsell and Cross-Sell Apps Compared Side by Side

Which Upsell and Cross-Sell App Is Right for You?

Use this decision path to narrow it down in about a minute.

What to Look for in Upsell and Cross-Sell Apps

• Placement options. Product page, cart, checkout and post-purchase offers each work differently. Check which placements are on the plan you can afford, and note which need Shopify Plus.
• Recommendation logic. Apps that learn from your order history usually pick better pairings than fixed bestseller lists. Manual control still matters for new products.
• Pricing model. Some apps charge by orders, some by upsell revenue and some a flat fee. Model the cost at your expected volume six months from now.
• Testing and reporting. Built-in A/B testing and revenue attribution show whether an offer adds money or just adds clutter.
• Speed and theme fit. Widgets add scripts to your pages. Test page speed before and after, and confirm the app works with your theme. For more options, see our lists of the best Shopify apps for ecommerce and best WooCommerce plugins for ecommerce.

Quick Wins You Can Make Before Buying Anything

1. Use your platform’s built-in fields. WooCommerce has native upsell and cross-sell fields on every product, and many Shopify themes show related or complementary products. Fill them in for your top sellers first.
2. Look at your order data. Export recent orders and find the products most often bought together. Those pairs are your first bundles.
3. Set a free shipping threshold. A threshold slightly above your current average order value gives shoppers a clear reason to add one more item.
4. Keep add-ons cheap relative to the main item. A low-priced accessory is an easier yes than a second expensive product.
5. Limit offers per page. One relevant offer per step is easier to accept than a wall of suggestions.

Frequently Asked Questions

What are upsell and cross-sell apps?

They are store apps or plugins that show extra product offers to shoppers automatically. Upsells suggest a better or larger version of the chosen item, and cross-sells suggest related products that go with it.

What is the difference between an upsell and a cross-sell?

An upsell replaces the chosen product with a higher-value option, such as a bigger size. A cross-sell adds a complementary product, such as batteries with a toy. Both aim to raise average order value.

What are the best upsell and cross-sell apps for Shopify?

Frequently Bought Together is a low-cost choice for bundles, Zipify OCU covers pre-purchase, cart and post-purchase upsells with revenue-based pricing, and AfterSell focuses on post-purchase and thank-you page offers.

What are the best upsell plugins for WooCommerce?

UpsellWP has a free version with order bumps, cart cross-sells and bundles. Product Recommendations for WooCommerce, made by Woo, adds automated recommendations across more than 20 store locations for $99 a year.

Do post-purchase upsells hurt conversion?

Post-purchase offers appear after the payment is complete, so they do not block the original order. That is one reason many stores test them first. Still, watch refund and complaint rates after launch.

Do I need Shopify Plus for upsells?

Only for offers inside the checkout itself. Zipify OCU and AfterSell both say in-checkout upsells require Shopify Plus, but product page, cart, post-purchase and thank-you page offers work on other plans.

How much do upsell apps cost?

Among the apps above, entry prices range from free (Frequently Bought Together, UpsellWP Lite) to $9.95 a month (Zipify OCU), $34.99 a month (AfterSell) and $99 a year (Product Recommendations for WooCommerce). Several charge more as orders or upsell revenue grow.

Is upselling the same as conversion rate optimization?

Not exactly. Conversion rate optimization aims to get more visitors to buy, while upselling aims to get each buyer to spend more. Read what conversion rate optimization is for the wider picture.

Do I need a developer to set this up?

Most of these apps install without code. If you want custom offer placements or a faster WooCommerce theme to support them, our WordPress development service can help.

Final Verdict: Which Upsell and Cross-Sell App Should You Choose?

On Shopify, start with Frequently Bought Together if you want simple bundles at a low price, choose Zipify OCU if you want offers across the whole buying journey and prefer revenue-based pricing, and pick AfterSell if post-purchase offers are your main goal. On WooCommerce, begin with the free version of UpsellWP, and move to Product Recommendations for WooCommerce when your catalog is large enough to need automated, data-driven suggestions.

Your next step: pick your five best-selling products, set up one relevant cross-sell for each, and compare average order value after 30 days. A few well-matched offers will tell you more than a dozen untested ones.

Sources

• McKinsey & Company: The value of getting personalization right, or wrong, is multiplying
• Frequently Bought Together on the Shopify App Store
• Zipify OCU on the Shopify App Store
• AfterSell on the Shopify App Store
• Product Recommendations for WooCommerce
• UpsellWP on WordPress.org
• UpsellWP pricing

About the author

Jaykishan Panchal

Founder & CEO, TechCognate · SEO Strategist & WordPress Expert

Jaykishan Panchal is the founder of TechCognate and an SEO strategist with 15+ years of hands-on experience driving organic growth for businesses worldwide. He specialises in technical SEO, content strategy and GEO (Generative Engine Optimisation), helping brands stay visible in both traditional search and AI-driven discovery.

• Technical SEO
• Content Strategy
• AI & GEO
• Google Ads
• E-Commerce SEO

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