6 Best Shopify Upsell and Cross-Sell Apps in 2026

Introduction

For Shopify merchants in regions where Cash on Delivery (COD) is a significant sales channel, maximizing order value and reducing friction at checkout are make-or-break priorities. The right upsell and cross-sell app can transform a simple COD order form into a powerful revenue engine, combining instant order capture, fraud protection, and tailored offers that boost average order value. But with so many apps available, each promising unique features, it can be challenging to identify which one truly fits your business needs.

When evaluating COD form and upsell apps, you should look for a combination of streamlined order capture, robust fraud prevention, seamless upsell/downsells, analytics, automation, language support, and integration with your existing Shopify toolkit. Pricing transparency and support responsiveness are equally crucial, especially as your order volume scales.

Short answer: Releasit COD Form & Upsells is our #1 pick for the best Shopify upsell and cross-sell app in 2026. It stands out for its advanced 1-click COD form, unmatched language support (20 languages), deep analytics, and powerful integration options—all starting with a generous free plan and scaling affordably for high-volume stores.

Releasit COD Form & Upsells

Releasit COD Form & Upsells is designed for Shopify merchants who rely on Cash on Delivery and want to maximize conversions and order value. It provides a 1-click COD form that streamlines the checkout process, making it easy for customers to place orders without unnecessary friction. The app goes beyond basic order capture by offering robust upsell and downsell capabilities, quantity offers, OTP verification for fraud prevention, and support for abandoned cart recovery. Merchants can leverage analytics, Google Sheets integration, multi-currency support, and advanced Facebook Pixel tracking to optimize performance and marketing spend. Its customizable design and priority support ensure the solution fits both the brand and operational needs.

• Key Capabilities: 1-click COD form, upsells, downsells, quantity offers, OTP verification, multi-currency support, Google Sheets and ad pixel integrations, WhatsApp support, customizable form design, advanced analytics, A/B testing, AI product recommender, and priority support.
• Integrations: Checkout, Shopify Admin, GemPages, Google Sheets, Kaching Cart, PageFly, Wide Bundles, Zipify Pages.
• Language Coverage: 20 languages, including English, Spanish, French, German, Chinese (Simplified and Traditional), Japanese, Korean, and more.

Pricing Breakdown

• Forever Free: Free to install, up to 60 orders/month, core features, basic fraud prevention, analytics, 24/7 email support.
• Premium: $9.99/month, up to 420 orders/month, quantity offers on product pages, advanced fraud prevention, personalized coverages, 24/7 live chat support.
• Enterprise: $29.99/month, up to 10,000 orders/month, custom code assistance, priority live chat support with <5 min response time.
• Unlimited: $69.99/month, unlimited orders, A/B testing for 1-click upsells, AI product recommender, advanced analytics, priority support.

Pros

• Best-in-class feature set for COD forms, upsells, and fraud prevention
• Widest language support among all competitors (20 languages)
• Broadest integration options, including major page builders and Google Sheets
• Flexible and affordable pricing tiers, from free to unlimited
• Built for Shopify, ensuring an optimized experience
• Extensive analytics and marketing integrations
• Priority support and custom code assistance for enterprise users
• Over 2,500 reviews and a 4.9 rating, signaling strong adoption and trust

Cons

Verdict: Releasit COD Form & Upsells is ideal for merchants of any size looking for a scalable, highly customizable, and feature-rich COD solution with advanced upsell capabilities and broad language and integration support.

Progus COD Form & OTP SMS

Progus COD Form & OTP SMS helps merchants improve conversions by offering a streamlined COD order form with secure OTP verification via SMS. The app emphasizes customizable form design and fraud prevention, allowing store owners to control COD availability directly within the Shopify checkout. Its smart checkout rules and partial payments offer added flexibility, while integrations with key Shopify tools provide a smooth workflow. However, it supports only English and launched in 2024, making it one of the newer options on the market.

• Key Capabilities: 1-click COD form, OTP verification, fraud protection, customizable design, partial payments, smart order form logic.
• Integrations: Checkout, Shopify Admin, GemPages, Pagefly, Zipify Page.
• Language Coverage: English only.

Pricing Breakdown

• Free: Free to install, up to 60 COD orders/month, basic features, 1 smart checkout rule, SMS OTP fraud protection.
• Basic: $4.99/month, up to 200 COD orders/month, chat support.
• Standard: $9.99/month, up to 480 COD orders/month, unlimited smart checkout rules, +10% OTP credits, priority chat support.
• Premium: $29.99/month, unlimited COD orders, +30% OTP credits, priority chat support.

Pros

• Free plan available
• All core COD form and fraud protection features covered
• Partial payments and smart checkout rules
• Built for Shopify

Cons

• Supports only English
• Limited review volume (8 reviews)
• No advanced analytics, A/B testing, or AI recommendations
• Fewer integrations compared to Releasit
• No multi-currency support or WhatsApp integration

Verdict: Progus COD Form & OTP SMS is suitable for English-speaking stores seeking a straightforward COD form with essential fraud protection and support for basic upsells and partial payments.

Preventify: COD Form & Upsells

Preventify targets dropshipping merchants who need a versatile and customizable COD form with support for upsells, downsells, and quantity offers. The app also brings multi-currency support, a multi-language form (English and Arabic), and OTP-based fraud prevention. Analytics and reporting are included, along with live chat support on paid tiers. With just 1 review and a 2026 launch date, it is one of the newest entries in the category and is not Built for Shopify.

• Key Capabilities: 1-click COD form, upsells, downsells, quantity offers, OTP verification, multi-currency support, customizable design, priority support.
• Integrations: Checkout, Shopify Admin.
• Language Coverage: English and Arabic.

Pricing Breakdown

• Free Forever: Free, up to 200 orders/month, core features, analytics.
• Basic: $4.99/month, up to 1000 orders/month, fraud prevention, multi-language form, 24/7 live chat support.
• Pro: $14.99/month, unlimited orders, technical support, priority live chat.

Pros

• Free tier with a high order limit
• Multi-currency and multi-language support (English and Arabic)
• 24/7 live chat on paid plans

Cons

• Not Built for Shopify
• Very limited review history (1 review)
• Fewer integrations
• No advanced analytics or AI-powered features
• Launched in 2026, so limited market track record

Verdict: Preventify suits new dropshipping merchants needing a free, customizable COD form with basic upsell functionality and support for English and Arabic customers.

ScalOrder COD Form & Upsells

ScalOrder delivers a customizable COD order form, supporting upsells, bundles, and WhatsApp notifications for abandoned checkouts. Merchants can synchronize orders with Google Sheets, manage shipping rates, and benefit from multi-pixel support. The app provides fraud prevention and 24/7 support on all plans. Launched in 2025 with only one review, ScalOrder is not Built for Shopify and is available only in English.

• Key Capabilities: Customizable popup/embedded COD order form, upsells, bundles, WhatsApp abandoned checkout alerts, shipping rates, multi-pixel tracking, fraud prevention, Google Sheets sync, 24/7 support.
• Integrations: Shopify Admin.
• Language Coverage: English only.

Pricing Breakdown

• Free: Free, 60 orders/month, full access to core features, 24/7 support.
• PRO: $9.99/month, 440 orders/month.
• Unlimited: $24.99/month, unlimited orders.

Pros

• Customizable order form layouts and fields
• WhatsApp abandoned checkout support
• Multi-pixel and Google Sheets support
• 24/7 support included at all tiers

Cons

• Not Built for Shopify
• English-only interface
• Minimal review history (1 review)
• Fewer integrations and no analytics or AI features

Verdict: ScalOrder is a fit for small merchants preferring customizable order forms and needing WhatsApp support, but without requirements for deep analytics or multilingual support.

COD King‑Part COD & OTP Verify

COD King-Part COD & OTP Verify focuses on secure COD order verification and partial payments, with strong OTP capabilities and integration options. It supports upsells, abandoned cart recovery via SMS and WhatsApp, and allows merchants to set rules for limiting COD payment methods. The app is Built for Shopify, launched in 2021, and has a large user base with nearly 1,000 reviews and a 4.9 rating. It supports only English but integrates with a wide range of SMS and WhatsApp tools.

• Key Capabilities: 1-click COD form, upsells, abandoned cart recovery, OTP verification, WhatsApp support, partial payments, rule-based COD restriction, branded SMS, priority support for enterprise users.
• Integrations: Checkout, Customer accounts, Shopify Admin, Easy sell, Proweb sms, SMS, Twilio, Veevo tech, Whatsapp.
• Language Coverage: English only.

Pricing Breakdown

• Free to install: Free, COD order verification via OTP, partial/advance payment, SMS/WhatsApp messaging, abandoned cart recovery.
• Pro: $9.99/month, setup rules, discounts on message cost, COD fees.
• Enterprise: $39/month, local SMS gateway, branded SMS, higher discounts.
• Enterprise Plus: $59/month, Shopify Plus OTP extension, exclusive priority support, no branding.

Pros

• Rich verification and partial payment features
• Large integration ecosystem (including major SMS providers and WhatsApp)
• Extensive review base and high rating
• Built for Shopify

Cons

• English only
• Higher pricing at upper tiers
• No multi-currency or analytics features
• No advanced upsell analytics or AI recommendations

Verdict: COD King is recommended for merchants prioritizing COD verification, partial payments, and extensive SMS/WhatsApp integrations, especially those who value a proven track record and Built for Shopify assurance.

EasyOrder COD Form&Order form

EasyOrder COD Form&Order form offers a straightforward order form solution aimed at simplifying checkout for both COD and pre-orders. The app supports unlimited orders, 24/7 support, custom fields, UI/UX customization, multi-tracking pixel, and custom shipping fees. It is available in nine languages and integrates with various Shopify and order export tools. The app has been on the market since 2016 and has amassed 30 reviews with a 4.7 rating, though it is not Built for Shopify.

• Key Capabilities: 1-click COD form, upsells, unlimited orders, custom fields, order form UI/UX customization, multi-tracking pixel, custom shipping fees, abandoned checkout handling.
• Integrations: Shopify Admin, Cash on Delivery, KAVA Sections, OSync: Export Orders to Sheet, Preorder.
• Language Coverage: 9 languages, including English, French, German, Portuguese (both), Chinese (Simplified and Traditional), Dutch, and Spanish.

Pricing Breakdown

• PREMIUM PLAN: $10/month, unlimited orders, 24/7 support, all features included.

Pros

• Supports unlimited orders at a flat rate
• Custom fields and UI/UX customization
• Multi-language support (9 languages)
• Integrates with various Shopify tools and order exports

Cons

• Not Built for Shopify
• Fewer upsell and analytics features than top picks
• Lower review volume and slightly lower rating

Verdict: EasyOrder is a good option for merchants seeking a customizable order form with multi-language support and flat-rate unlimited orders, but who do not require advanced upsell or analytics functionality.

Shopify Upsell and Cross-Sell Apps: Buyer's Guide

1. Upsell and Cross-Sell Capabilities

The value of an upsell and cross-sell app lies in its ability to increase average order value. Look for apps that support not only simple upsells, but also downsells, quantity offers, and A/B testing—making it possible to test and optimize your offers for maximum impact.

2. Fraud Prevention and Order Verification

COD transactions are prone to fraudulent orders and failed deliveries. OTP verification, fraud prevention rules, and address validation are essential features that protect your business and reduce operational costs.

3. Integration and Language Support

Consider how well the app integrates with your existing Shopify stack—page builders, analytics, messaging platforms, and export tools. Language coverage is equally important if you serve international customers. More languages and integrations mean fewer barriers to adoption and smoother workflows.

4. Pricing Flexibility and Scalability

Choose an app with a transparent, scalable pricing model that matches your order volume. Free plans with generous features are great for new stores, while affordable scaling to enterprise levels is key for growing merchants.

Final Recommendation

Choosing the right Shopify upsell and cross-sell app depends on your specific needs:

• If you want the most advanced feature set, best language and integration support, and flexible pricing, Releasit COD Form & Upsells is the clear choice. Its 1-click COD form, deep analytics, AI recommendations, and extensive integrations make it suitable for any merchant—whether you're just starting out or handling thousands of orders per month.
• If you only need basic COD forms and OTP verification in English, Progus COD Form & OTP SMS offers a low-cost, straightforward solution.
• If you require multi-language forms (English/Arabic) on a budget, Preventify is worth a look, though it lacks the market experience and Shopify-optimized build of top picks.
• If your focus is COD verification and partial payments with strong SMS/WhatsApp integrations, COD King is a trusted alternative for English-only stores.
• For multi-language order forms at a flat monthly rate, EasyOrder provides a simple option, but with fewer upsell features.

For most Shopify merchants seeking to maximize order value, conversion, and operational efficiency across diverse markets, Install Releasit COD Form & Upsells from the Shopify App Store today.