1. Rebuy

Rebuy takes upselling to a personalized level. It uses data-driven insights to recommend products that customers are more likely to purchase. Key features include automated smart carts, AI-powered recommendations, and the ability to set up personalized widgets on various pages of your store.

Features: 

• AI-powered search, end-to-end personalization, upsells, and cross-sells.
• Effective use of Post-Purchase, Re-Order Landing Pages, and Smart Links will drive customer loyalty and satisfaction.
• Data-fueled product recommendations in checkout and accelerated checkout.
• Industry-leading integrations through every step of the customer's journey.

Shopify Rating: 4.9/5

Pricing: Starts at $99/month,

2. Zipify OneClickUpsell

Zipify OneClickUpsell is all about maximizing your revenue per customer. In a matter of seconds, you can create funnel messages for your full customer journey, from the Product Page to the "Thank You" Page and also from SHOP to ensure you are getting the highest income after each purchase. Just choose the product(s), set a discount, and click Publish to optimize your checkout from start to finish.

Features: 

• Upselling can be done in real-time, i.e., it can match your product recommendations.
• Pre & Post-purchase upsells across the entire store to increase revenue.
• Built-in Slide Cart Drawer with upsells is exclusively for free shipping bar & more to boost AOV.
• The Shop App allows you to add multiple upsells & get an exclusive unlock to a new sales channel.
• The Shopify Plus merchants can avail in-checkout upsells at no additional cost!

Shopify Rating: 4.7/5

Pricing: Starter plan at $8/month and Unlimited plan at $35/month

3. UpNova

UpNova focuses on scaling up your sales with irresistible pre-purchase upselling offers and a fantastic cart slider that converts like hotcakes. Upnova creates scarcity and exclusivity around those promised savings so that your customer’s second visit never gets it again. . This would be the way up to a higher Average Order Value and to customers who would be thrilled to feel that they've practically won a bet with you.

Features: 

• Motivate your customers by offering them rewards for making their purchases
• Design the in-cart upsell, popup, bundle builder and more to a high level of quality
• The decreased time spent on payments at your store will boost your store's conversion rate
• Be a professional upselling expert by means of the step-by-step tutorial videos of Upnova

Shopify Rating: 5/5

Pricing: Free plan available; standard plans start at $99/month with pro plan at $149/month.

4. Boost Sales - Upsell & Cross-sell

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The persistent cart powered by Boost can always be seen at the bottom of the screen, encouraging endless shopping. Progress bars displaying how much they have to add to qualify for the next discount tier inspire them to add more items to their cart. The gamified shopping experience engages customers, which increases cart values. Built-in upsells and cross-sells drive order values straight from the cart.

Features: 

• Custom reward tiers combine discounts, free shipping, and free gifts.
• Encounters stronger engagement compared to flat discounting.
• Discounts automatically apply-no promo code is needed.
• E.g.$75 free shipping, $100 15% off, $200 25% off; free gift at $250.
• Give bigger discounts while safeguarding margins on small orders

Shopify Rating: 5/5

Pricing: Plans start at $299/month with 14 days free day trial. 

5. Aftersell Post Purchase Upsell

Aftersell excels in post-purchase upsell strategies. After the initial purchase, display irresistible post-purchase offers that shoppers can accept in one click re-entering payment info, no going through checkout again thus reducing friction and pushing sales skywards! Improve customer satisfaction on your thank-you page with reviews, FAQs, cross-sells, network offers & more! You can upgrade your checkout page with upsells and social proof if you are on shopify plus.

Features: 

• Create post-purchase upsell offers with single or multiple products.
• Alter thank you pages for reviews, FAQs, akin, upselling, cross-selling, and so on. 
• Edit the checkout page with order bump upsells (Shopify Plus Exclusive). 
• Trigger upsells based on product, cart value, customer tag, language, UTM, and more. 
• Create an instant turn-key new revenue stream with the personalized offers you present post-checkout. 

Shopify Rating: 4.8/5

• Pricing: For 0-500 orders the pricing starts at $34.99/ month, 501-1000 orders - $54.99/ month and for 1001-2000 orders its $99.99/ month

6. Qikify Upsell and gifts

Eliminate any communication gaps, hesitations, and hard feelings by using Qikify to introduce dynamic automatic discounts, BOGO deals, Buy X Get Y schemes, and product bundles to increase AOVs(more on boosting AOVs in a future chapter). With the ease of tiered pricing, you can upsell with a discount or cross-sell with a discount and gift with purchase offers (Buy 2 Get 1 Free, spend X to get free gifts). Provide discounts, such as cart discounts, shipping goals, and percentage discounts to encourage customers to spend more. Create a checkout discount and stackable discount codes. Uses Shopify Functions; supports multilingual and multicurrency configurations. 

Features: 

• Sell more with BOGO, Buy X Get Y, tiered pricing, volume discounts, bundles.
• Set free gifts per product, cart, or quantity of products.
• Product, cart or checkout page upsell or cross-sell based on automatic discounts.
• Real-time analytics and AOV tracking give insight into optimizing offers.
• Easily combine these layouts on your store with Shopify-native codes and discounts. 

Shopify Rating: 4.7/5

Pricing: Free version available; Basic plan at $9.99/month, Professional at $24.99/ month and Advanced plan at $49.99/month

7. Candy Rack

Candy Racks takes your store's selling strategy to the next level by perfectly blending upsells and cross-sells functionality. It is created to make shopping a better experience by offering some intuitive up-sells and in-cart offers before and after purchase. What's more, Candy Rack has a friendly user interface, plus lots of customizable options tailored to your store's look and feel. Our goal is to help you increase your average order value efficiently while ensuring your customers aren't overwhelmed.

Features: 

• Upsell in the product pages, shopping cart, and checkout.
• AI-Powered One-Click Recommendations for Relevant Offers
• Mobile-first and optimized for a smooth mobile experience.
• Update content and designs to fit your brand design ideals. 

Shopify Rating: 4.9/5

Pricing: Starts at $29.99/month( basic plan), Standard Plan at $49.99/month and Plus plan at $99.99/ month.

8. Honeycomb Upsell Funnels

Honeycomb Upsell Funnels helps create complete upsell funnels that guide the customer through a journey of relevant offers. With Honeycomb, you can customize each step of the funnel to ensure that the upsells are as appealing as possible, thus maximizing the chances of conversion.

Features: 

• Funnel product pages, cart pages, in-checkout (Plus exclusive), and thank-you pages.
• Find the BEST upsell offer to increase sales via built-in A/B split testing.
• Offering real one-click-to-purchase post-purchase upsell offers and merging the 2 orders easily.
• Easy set-up with custom fields, autopilot mode, discount stacking, pixels & more. 

Shopify Rating: 4.8/5

Pricing: Silver plan starts at $49.99/month, Gold Plan at $99.99/month and Platinum at $149.99/month. 

Summing Up

Each of these apps offers unique features that can cater to different upselling strategies, whether you’re looking to integrate subtle product recommendations or bold post-purchase offers. By choosing the right upsell app for your Shopify store, you can significantly enhance your customer's shopping experience while increasing your average order value.