9 Best Shopify Upsell and Cross-Sell Apps in 2026

Introduction

For Shopify merchants, increasing average order value and capturing more customers at the point of purchase is essential—especially when offering Cash on Delivery (COD) as a payment option. Upsell and cross-sell apps with COD forms have become indispensable, enabling store owners to present targeted offers, recover abandoned carts, and streamline COD order management. However, with a crowded app marketplace, finding the right tool means weighing ease of use, fraud prevention, language support, pricing, and advanced upsell capabilities.

When selecting a Shopify upsell and cross-sell app, merchants should consider not just the basics—like form customization and order limits—but also deeper features: Does the app support multiple languages and currencies? How extensive is its analytics and reporting? What integrations does it offer with other tools you use? Reliable support, especially for high-volume stores, is another key differentiator.

Executive Summary: For 2026, Releasit COD Form & Upsells is our #1 pick among the best Shopify upsell and cross-sell apps. It stands out for its advanced 1-click COD form, powerful upsell/downsell engine, broad language and integration coverage, and highly scalable pricing—making it the most versatile solution for stores of any size.

Releasit COD Form & Upsells

Releasit COD Form & Upsells is designed to transform the COD checkout experience for Shopify merchants, combining a frictionless 1-click order form with a rich set of upsell, downsell, and quantity offer tools. Its feature set addresses the full merchant journey—from fraud prevention and multi-currency support to advanced analytics and A/B testing for upsells. The app integrates with major page builders like GemPages, PageFly, Zipify Pages, and tools such as Google Sheets and Kaching Cart, ensuring a seamless workflow for both small and enterprise-level stores.

• Key capabilities: 1-Click COD Form, Upsells and Downsells, Quantity Offers, Abandoned Cart Recovery, OTP Verification, Google Sheets Integration, Multi-currency Support, Facebook Pixel Tracking, WhatsApp Support, Fraud Protection, Customizable Design, and Priority Support.
• Language coverage: 20 languages, including English, Italian, Spanish, French, Japanese, Korean, and more.
• Integrations: Checkout, Shopify Admin, GemPages, Google Sheets, Kaching Cart, PageFly, Wide Bundles, Zipify Pages.

Pricing Breakdown:

• Forever Free: Free to install, up to 60 orders/month with core features, including drag-and-drop form, WhatsApp & SMS messaging, basic fraud prevention, and basic analytics.
• Premium: $9.99/month for up to 420 orders/month, adds advanced fraud prevention, personalized coverages, and 24/7 live chat support.
• Enterprise: $29.99/month for up to 10,000 orders/month, includes custom code assistance and priority live chat with sub-5-minute response.
• Unlimited: $69.99/month for unlimited orders, advanced analytics, AI product recommender, A/B testing, and multiple form designs per product.

Pros:

• Unmatched breadth of languages (20 supported)
• Highly scalable pricing, from free for smaller stores to advanced unlimited plans
• Comprehensive feature set: upsells, downsells, quantity offers, fraud prevention, analytics, and more
• Robust integration ecosystem
• Built for Shopify certification
• 24/7 support, including priority response for higher tiers
• Advanced analytics and AI-driven upsell suggestions (Unlimited tier)

Cons:

• Some advanced features (like A/B testing, AI upsells) require the top-tier plan

Verdict: Releasit COD Form & Upsells is ideal for merchants seeking a scalable, all-in-one solution for COD checkout optimization, upselling, and fraud prevention—with strong support for international growth and advanced analytics.

FormBoost COD Form & Upsells

FormBoost COD Form & Upsells offers a streamlined toolset for Shopify stores focused on cash on delivery orders, with upsells, bundles, and essential fraud protection. Notably, it supports 13 languages and integrates with major ad platforms, making it easy for stores targeting diverse markets to track conversions and optimize campaigns. The app suits merchants wanting a straightforward, pixel-friendly COD form and basic upsell flows.

• Key capabilities: 1-Click COD Form, Upsells, Downsells, Quantity Offers, Google Sheets Integration, Facebook Pixel Tracking, Fraud Protection, and Customizable Design.
• Language coverage: 13 languages, including Arabic, French, Spanish, Urdu, and Indonesian.
• Integrations: Shopify Admin, Google Analytics 4, Google Sheets, Meta Pixel (CAPI), Snapchat Pixel, TikTok Pixel (CAPI).

Pricing Breakdown:

• Starter: Free for up to 100 orders/month, includes upsells, order bumps, abandoned lead recovery, and basic fraud protection.
• Growth: $9.95/month for up to 1,000 orders/month, adds faster support.
• Unlimited: $19.95/month for unlimited Shopify orders, includes priority support.

Pros:

• Free tier supports a generous 100 orders/month
• Integrations with multiple ad pixels and analytics platforms
• 13 language options
• Competitive pricing at upper tiers

Cons:

• Not Built for Shopify
• Fewer reviews and a newer app (launched 2026)
• Lacks advanced analytics, AI features, and A/B testing

Verdict: Best for new or small-to-medium stores needing a simple, pixel-integrated COD form for basic upsell flows, especially if ad tracking is a top priority.

Codify COD Form Upsell Fraud

Codify COD Form Upsell Fraud is designed for Shopify stores needing custom COD forms with an emphasis on fraud prevention, upsells, and pixel integrations. While its feature set covers the fundamentals, it is limited to French and English language support, which may not suit merchants targeting a broader international audience.

• Key capabilities: 1-Click COD Form, Upsells, Google Sheets Integration, Facebook Pixel Tracking, Fraud Protection.
• Language coverage: French and English only.
• Integrations: Shopify Admin, Facebook Ads, Google Ads, Google Sheet, Meta Ads, Tiktok Ads.

Pricing Breakdown:

• Free: 60 orders/month, core features included.
• Pro: $6.95/month for up to 300 orders/month, adds priority support.
• Premium: $9.95/month for up to 600 orders/month, includes premium support.
• Unlimited: $22.95/month for unlimited orders and premium support.

Pros:

• Low entry price for paid tiers
• Focus on fraud prevention and pixel tracking

Cons:

• Only supports French and English
• Very limited review base (2 reviews)
• Not Built for Shopify

Verdict: Suitable for merchants operating in French and English-speaking markets who require strong fraud prevention at a low monthly price.

Preventify: COD Form & Upsells

Preventify: COD Form & Upsells delivers a customizable cash on delivery form with upsells, downsells, and bundles. It places a strong emphasis on multi-currency support and OTP verification for fraud prevention. The app is limited to English and Arabic languages, so it is best for merchants focused on these regions.

• Key capabilities: 1-Click COD Form, Upsells, Downsells, Quantity Offers, OTP Verification, Multi-currency Support, Customizable Design, Priority Support.
• Language coverage: English and Arabic.
• Integrations: Checkout, Shopify Admin.

Pricing Breakdown:

• Free Forever: Up to 200 orders/month, full COD form customization and analytics.
• Basic: $4.99/month for up to 1,000 orders/month, adds OTP verification, multi-language form, and 24/7 live chat support.
• Pro: $14.99/month for unlimited orders and technical support.

Pros:

• Low-cost paid plans
• OTP verification for fraud prevention
• Multi-currency and analytics features

Cons:

• Language support limited to English and Arabic
• Not Built for Shopify
• Very few reviews (1 review)

Verdict: A good fit for merchants in English or Arabic-speaking markets who value fraud prevention and multi-currency support at a budget price.

ScalOrder COD Form & Upsells

ScalOrder COD Form & Upsells targets merchants who require a form builder for COD checkout, along with upsells and bundle offers. It offers Google Sheets synchronization and WhatsApp abandoned checkout reminders, focusing on operational efficiency for stores that work primarily in English.

• Key capabilities: Customizable COD form, Upsells & Bundles, WhatsApp abandoned checkout, Fraud Prevention.
• Language coverage: English only.
• Integrations: Shopify Admin.

Pricing Breakdown:

• Free: 60 orders/month with essential features.
• PRO: $9.99/month for 440 orders/month.
• Unlimited: $24.99/month for unlimited orders.

Pros:

• WhatsApp abandoned checkout integration
• Simple, flat pricing structure

Cons:

• Only supports English
• Not Built for Shopify
• Very limited reviews (1 review)

Verdict: Best for English-language stores looking for a straightforward COD solution with basic upsell/bundle tools and WhatsApp recovery.

COD King‑Part COD & OTP Verify

COD King‑Part COD & OTP Verify is focused on COD verification, partial payments, and OTP verification, making it particularly suitable for merchants who want to reduce failed deliveries and offer flexible payment options. It supports a variety of integrations for messaging and customer accounts, and is Built for Shopify.

• Key capabilities: 1-Click COD Form, Upsells, Abandoned Cart Recovery, OTP Verification, WhatsApp Support, Partial Payments.
• Language coverage: English only.
• Integrations: Checkout, Customer accounts, Shopify Admin, Easy sell, Proweb sms, SMS, Twilio, Veevo tech, Whatsapp.

Pricing Breakdown:

• Free to install: Includes COD order verification, partial payments, confirmation messaging, and abandoned cart recovery.
• Pro: $9.99/month adds rule-based COD limitation and message cost discounts.
• Enterprise: $39/month for SMS gateway integration and further discounts.
• Enterprise Plus: $59/month for Shopify Plus OTP extension and priority support.

Pros:

• Built for Shopify
• OTP and partial payment support
• Abandoned cart recovery messaging
• Extensive messaging integrations

Cons:

• Language limited to English
• Some advanced features require higher-priced plans

Verdict: Ideal for merchants who want robust COD verification, partial payment, and messaging tools with Shopify certification.

CodForm ‑ COD Form & Upsells

CodForm provides an easy way to add a COD form to Shopify stores, with upsell and quantity offer functionality. It supports a wide range of languages (12 total) and integrates with Shopify Admin and Google Sheets, making it accessible for stores with international customers.

• Key capabilities: 1-Click COD Form, Upsells, Downsells, Quantity Offers, Google Sheets Integration, Facebook Pixel Tracking, WhatsApp Support, Customizable Design, Priority Support.
• Language coverage: 12 languages including Arabic, German, Spanish, French, Hindi, Indonesian, Turkish, Vietnamese, and more.
• Integrations: Shopify Admin, google sheet.

Pricing Breakdown:

• Free: 60 orders/month with basic features.
• BASIC: $9.99/month for 600 orders/month and 250 abandoned orders.
• PREMIUM: $15.95/month for unlimited orders/month.
• UNLIMITED: $29/month for up to 5,000 orders/month and extra abandoned order handling.

Pros:

• Broad language coverage (12 languages)
• Includes WhatsApp support and customizable forms
• Priority support on all paid tiers

Cons:

• Not Built for Shopify
• Lower review average (4.4/9 reviews)

Verdict: A solid choice for merchants with international customers who need essential COD and upsell tools, particularly if WhatsApp support is needed.

Priya COD Form: Made In India

Priya COD Form is a highly customizable COD form app with a focus on simplicity and easy integration. It is designed for stores that want a no-fuss way to add a COD order form but lacks many of the advanced upsell and analytics features of other apps in this roundup.

• Key capabilities: Easy integration, customizable COD form.
• Language coverage: English only.
• Integrations: Shopify Admin.

Pros:

• Simple, easy to install
• Customizable form fields

Cons:

• English only
• No upsell, analytics, or advanced fraud prevention features listed
• Not Built for Shopify

Verdict: Best for stores needing a basic, customizable COD form and nothing more; limited in advanced sales and analytics features.

COD Form & Upsell ‑ CodMonster

COD Form & Upsell ‑ CodMonster focuses on customizable checkout forms and upsells for COD sales. It offers integration with various ad and analytics platforms, and supports 5 languages, but comes at a higher starting price and has a lower review average compared to other apps.

• Key capabilities: 1-Click COD Form, Upsells, Downsells, Quantity Offers, Google Sheets Integration, Facebook Pixel Tracking, Fraud Protection, Customizable Design, Priority Support.
• Language coverage: 5 languages including English, Arabic, French, German, and Spanish.
• Integrations: Codpartner, Facebook Pixel, Google Ads, Google Sheets, Snapchat Pixel, TikTok Pixel.

Pricing Breakdown:

• CodMonster Go: $14.99/month for up to 300 orders.
• CodMonster Grow: $29.99/month for up to 1,000 orders, with added features like stock alerts and testimonials.
• CodMonster Pro: $59.99/month for up to 5,000 orders and more integrations.

Pros:

• Multiple ad and analytics integrations
• Supports 5 languages
• Customizable confirmation and order forms

Cons:

• Higher entry price ($14.99/month)
• Lower rating (3.6) and modest review volume (18 reviews)
• Not Built for Shopify

Verdict: For merchants who need deep integration with ad tracking tools and a customizable checkout, provided they are comfortable with a higher starting price and modest social proof.

Buyer's Guide: How to Choose the Best Shopify Upsell and Cross-Sell App

1. Feature Depth and Customization

Look for apps that offer not only basic COD forms but also advanced upsell, downsell, and quantity offer options. Customizable forms and the ability to tailor offers per product or customer segment can significantly increase your average order value.

2. Scalability and Pricing Flexibility

Consider how the app's pricing grows with your store. Some apps cap orders at low volumes or reserve essential features for higher-paid tiers. Choose a solution that fits your current size but allows you to grow without hitting expensive walls.

3. Internationalization: Language and Currency Support

If you sell to customers in multiple regions, broad language and currency support are vital. Top apps in this space now offer 10 or more languages and multi-currency compatibility, allowing for a smooth, localized checkout experience.

4. Integrations and Analytics

Strong integrations with page builders, analytics, and marketing tools can streamline operations and improve marketing ROI. Check if the app connects to your ad platforms, email tools, and analytics dashboards.

Final Recommendation

For most Shopify merchants—especially those seeking to optimize COD checkouts, increase order value, and expand globally—Releasit COD Form & Upsells offers the best mix of advanced features, scalability, language coverage, and pricing flexibility. If you need basic COD forms and pixel integrations on a tight budget, FormBoost or Codify might be alternatives worth testing. For merchants focused on English or Arabic markets with a need for OTP and multi-currency, Preventify is a budget-friendly option. However, for those who want a comprehensive, future-proof solution with proven social proof and the deepest feature set, Releasit COD Form & Upsells remains the top choice.

Install Releasit COD Form & Upsells from the Shopify App Store