Boost security, add checkout rules and reduce fraud with AI (agentic) Terms and Conditions Check Box 'How to add terms and conditions in Shopify?' is a question we're getting asked a lot. Without clear consent, chargebacks and legal risks become real problems. TnC helps with that by adding a mandatory checkbox to your store, making sure customers agree to your policies before checkout. Whether it's a holiday promotion terms or GDPR age gate and privacy policy, the check box helps you stay protected. One-click installation, works seamlessly with your theme, and builds trust where it matters 'How to add terms and conditions in Shopify?' is a question we're getting asked a lot. Without clear consent, chargebacks and legal risks become real problems. TnC helps with that by adding a mandatory checkbox to your store, making sure customers agree to your policies before checkout. Whether it's a holiday promotion terms or GDPR age gate and privacy policy, the check box helps you stay protected. One-click installation, works seamlessly with your theme, and builds trust where it matters more Require consent for GDPR terms of service, privacy policy, policies and contract Show the check box for specific products & countries to meet legal disclaimer Logs the consent date & time of when the 'I agree to terms' check box was ticked Supports contact form, newsletter, login/sign up, footer menu PayPal & Apple Pay Translate the checkbox to multiple languages for multiple markets & geolocations
Custom rules Shopify Apps
Enhance your Shopify store with the best Custom rules apps. Get insights on features, pricing, and user reviews for 2026.
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Sync Inventory and Import Amazon orders in Real-Time with Amazon's latest Reliable Technology. Maximize your eCommerce efficiency with Amazon Easy Tool! Seamlessly import all orders: Prime, FBA, FBM, handmade, and custom into your Shopify back-office in real-time. Instantly sync stock and process orders to delight customers and uphold stellar seller metrics. Benefit from White Glove Implementation for tailored needs. Experience instant, flawless communication between Amazon and Shopify, giving you immediate control and visibility over all transactions. Perfect your online business today! Maximize your eCommerce efficiency with Amazon Easy Tool! Seamlessly import all orders: Prime, FBA, FBM, handmade, and custom into your Shopify back-office in real-time. Instantly sync stock and process orders to delight customers and uphold stellar seller metrics. Benefit from White Glove Implementation for tailored needs. Experience instant, flawless communication between Amazon and Shopify, giving you immediate control and visibility over all transactions. Perfect your online business today! more Sync your inventory and Amazon orders in Shopify Orders FBM, FBA & Handmade Instantly Process & Fulfill Orders from Shopify Back-Office to Amazon World Wide Amazon Customer & Custom message Data Integration to Shipping Orders Accurate Price & Tax rate in Shopify-control all online revenue in 1 Place Only! Improve your Seller Metrics and Keep your Local & International Clients Happy
Explore a new way of engaging your customers with auctions and Make an Offer Auctions are a tried and true selling strategy to maximize the amount of revenue generated for a unique product. Auction Plus facilitates bidding, notifies your customers of their winnings and directs them to checkout- automatically. Schedule your auctions in advance to generate buzz for your products, engage with your customers and fuel word of mouth referrals. NEW Convert undecided shoppers into buyers with Make an Offer. Turn products into conversations with chat-like negotiation experiences Auctions are a tried and true selling strategy to maximize the amount of revenue generated for a unique product. Auction Plus facilitates bidding, notifies your customers of their winnings and directs them to checkout- automatically. Schedule your auctions in advance to generate buzz for your products, engage with your customers and fuel word of mouth referrals. NEW Convert undecided shoppers into buyers with Make an Offer. Turn products into conversations with chat-like negotiation experiences more Add auctions and Make an Offer to your store, no coding required Provide your customers with a hassle-free way to bid with auto-bidding Schedule your auctions to build anticipation for your products Automatically notify your customers of their winnings and send them to checkout North American-based live chat and email support
Auto-attach fees, warranties & gifts to products at checkout. All plans. No code. Tweakday auto-attaches fees, warranties, insurance, and free gifts to specific products at checkout — based on rules you set. Sell a phone, a warranty attaches. Sell a fragile item, a handling fee adds. Per item, not per order. Quantity scales automatically. Multiple add-ons per product. Update bundle title and image at checkout. No widgets. No theme edits. No Shopify Plus needed. Free or paid add-ons. Auto-creates virtual products for insurance or warranties — no manual setup. Tweakday auto-attaches fees, warranties, insurance, and free gifts to specific products at checkout — based on rules you set. Sell a phone, a warranty attaches. Sell a fragile item, a handling fee adds. Per item, not per order. Quantity scales automatically. Multiple add-ons per product. Update bundle title and image at checkout. No widgets. No theme edits. No Shopify Plus needed. Free or paid add-ons. Auto-creates virtual products for insurance or warranties — no manual setup. more Auto-attach multiple fees, warranties & add-ons to specific products at checkout Quantity scales automatically — 1:1 by default or set your own ratio per add-on Auto-creates virtual warranty/insurance products — no manual setup needed Update parent title & image — looks like a bundle, fulfils separately No code, no theme edits, no Shopify Plus — works on all plans
Create and sort collections in various ways with advanced analytics Our app offers versatile collection management, allowing you to create and sort collections in various ways, including auto-updating them based on criteria such as "Back in Stock", "Best Selling for 90 days", and "New Arrival". You can also export products in a collection to CSV as well as duplicate or update existing automated collections. In addition, our analytics feature provides a direct look at which collections are performing the best for you. Our app offers versatile collection management, allowing you to create and sort collections in various ways, including auto-updating them based on criteria such as "Back in Stock", "Best Selling for 90 days", and "New Arrival". You can also export products in a collection to CSV as well as duplicate or update existing automated collections. In addition, our analytics feature provides a direct look at which collections are performing the best for you. more Create collections based on various criteria such as revenue, profit, metafields Duplicate collections and update rules for existing automated collections Make the most of your data when creating and sorting your collections Configure collection creation to run on-demand, daily, or at chosen frequency
Stop PO Box orders at checkout for successful deliveries and lower shipping cost. 1-click setup. If you're a merchant tired of dealing with lost packages, failed deliveries, or the extra costs associated with reshipping, then Ultimate PO Box Blocker is for you. Whether you're a small business owner or run a large e-commerce operation, our app is designed to make your shipping process more efficient and reliable. The app needs no manual setup for seamless integration but offers advanced customization options. Take control of your shipping process today. If you're a merchant tired of dealing with lost packages, failed deliveries, or the extra costs associated with reshipping, then Ultimate PO Box Blocker is for you. Whether you're a small business owner or run a large e-commerce operation, our app is designed to make your shipping process more efficient and reliable. The app needs no manual setup for seamless integration but offers advanced customization options. Take control of your shipping process today. more Auto-block PO Boxes carriers like FedEx, UPS, DHL can't deliver to. Eliminate time, effort, cost resolving address issues after purchase. Real-time validation flags undeliverable addresses during checkout. Simple installation with seamless integration—no setup needed. Advanced options to customize settings for specific shipping needs.
Highly customizable sliding cart drawer with upsells, progress bar, unlockable free gifts and more. Unicart replaces your default cart page with a highly customizable sliding cart drawer. It offers upsells, cross sells, a dynamic sales progress bar, spend tiers to unlock free items, multi language support and more. Unicart can be completely customized to allow for all types of custom features and custom designs. It supports different design templates and you can schedule publish them anytime (Best for sales days). Unicart is developer friendly and can be customised to meet every requirement. Unicart replaces your default cart page with a highly customizable sliding cart drawer. It offers upsells, cross sells, a dynamic sales progress bar, spend tiers to unlock free items, multi language support and more. Unicart can be completely customized to allow for all types of custom features and custom designs. It supports different design templates and you can schedule publish them anytime (Best for sales days). Unicart is developer friendly and can be customised to meet every requirement. more Cross-sell and upsell by showcasing relevant products based on items in the cart Sales progress bar to motivate customers to spend more to unlock special rewards Allow customer's to unlock free items in their cart at specific spend tiers Access to completely customize the cart to your exact design and function needs Supports subscriptions, integrates with apps like PageFly, BOLD, Shogun and more
Boost AOV with a Customizable Slide Cart Drawer, Smart Cross-Sells, Targeted Upsells & Gamification Unicorn is a powerful slide cart drawer app designed to drive more revenue for your store. A suite of powerful upsell tools to optimise your store’s Order Value (AOV) and conversion rates. With built-in upsell, cross-sell, and reward features, Unicorn turns every cart drawer interaction into an opportunity to delight customers and drive more sales. Built by ecommerce founders for ecommerce founders. Unicorn is a powerful slide cart drawer app designed to drive more revenue for your store. A suite of powerful upsell tools to optimise your store’s Order Value (AOV) and conversion rates. With built-in upsell, cross-sell, and reward features, Unicorn turns every cart drawer interaction into an opportunity to delight customers and drive more sales. Built by ecommerce founders for ecommerce founders. more Boost AOV with Targeted Upsells, Cross-sells, Upgrade to Subscription and more Increase Conversion: BOGO, Free Gifts and Stackable Discounts + Countdown timers Gamify Shopping with Tiered Rewards and Fully Customizable Progress Bars Create your own Shipping Protection Upsell as tick box or in the checkout button Fully customize & perfectly match your brand with an aesthetic Slide Cart Drawer
Upcart — custom slide cart with full design control to increase AOV and reduce cart abandonment Unlike basic cart drawer apps, Upcart turns your cart into a revenue-driving touchpoint with in-cart upsells, cross-sells, rewards, and add-ons—without redirecting shoppers or requiring multiple apps. Designed for fashion, food & beverage, beauty, and other DTC brands, Upcart matches your storefront and works seamlessly across desktop and mobile. Unlike basic cart drawer apps, Upcart turns your cart into a revenue-driving touchpoint with in-cart upsells, cross-sells, rewards, and add-ons—without redirecting shoppers or requiring multiple apps. Designed for fashion, food & beverage, beauty, and other DTC brands, Upcart matches your storefront and works seamlessly across desktop and mobile. more Increase AOV with in-cart upsells and cross-sells for frequently bought items Fully customize cart design with custom templates using HTML, CSS, and JSX Incentivize higher spend with rewards, progress bars, and free shipping goals Boost conversions with in-cart discounts and free gifts Reduce friction with a sticky slide cart that stays visible across your store
Set up a tax addon, dynamic surcharges, and a product surcharge. Easily add processing fees today. Our surcharge app helps you apply conditional fees, late fees, and automatic fees. Quickly add surcharge rules for a small order fee or one time fee. Manage checkout addons, dynamic addons, and free addons to collect an additional charge. Configure a payment surcharge, shipping surcharges, or a bottle deposit. Easily handle an order surcharge, rush fees, deposit fees, service fees, and checkout fees. Bill a membership fee, order & product fees, or a checkout surcharge. Our surcharge app helps you apply conditional fees, late fees, and automatic fees. Quickly add surcharge rules for a small order fee or one time fee. Manage checkout addons, dynamic addons, and free addons to collect an additional charge. Configure a payment surcharge, shipping surcharges, or a bottle deposit. Easily handle an order surcharge, rush fees, deposit fees, service fees, and checkout fees. Bill a membership fee, order & product fees, or a checkout surcharge. more Product fee, extra fee or cart fee — add price addons per item Credit card surcharge, payment method fee, cod fee or tariff surcharge Processing fee, handling fee and additional fees with deposits and fees Set a fee rule: advanced fees and checkout fee for any order Sync orders and fees directly to products or variants with fees payment
Automatically price your customers' multiple uploaded files, images with various conditions. Meet the most advanced file upload app. Replace separate product options and order status apps with our all-in-one print on demand solution. Create targeted fields with strict file and dimension rules to prevent incorrect submissions (e.g DPI check). Calculate pricing dynamically based on file sizes(width, height, PDF page count) or custom forms. Manage production directly in the app. Create custom order statuses, send automated emails, and bulk download renamed files to stay organized. Meet the most advanced file upload app. Replace separate product options and order status apps with our all-in-one print on demand solution. Create targeted fields with strict file and dimension rules to prevent incorrect submissions (e.g DPI check). Calculate pricing dynamically based on file sizes(width, height, PDF page count) or custom forms. Manage production directly in the app. Create custom order statuses, send automated emails, and bulk download renamed files to stay organized. more Create upload fields with strict rules for file types, dimension (e.g DPI Check) Charge dynamic fees based on file sizes(e.g height) or custom form selections Automate file renaming and bulk downloads via built-in File Manager Track production with custom order statuses and auto email alerts (Shopify Flow) Charge dynamically based on inch square dimensions or PDF page counts etc.
Allow file uploads with orders and enable customers to edit images and create personalized products. Upload-Lift allows customers to upload files / images / photos on Product, Contact, Cart and Order Status pages. It's easy to set up and does not require any theme modifications. You can configure the allowed file types, and the app includes an image editor to let customers crop images in your desired format. Let customers upload photo upload on any page on your store. Upload-Lift allows customers to upload files / images / photos on Product, Contact, Cart and Order Status pages. It's easy to set up and does not require any theme modifications. You can configure the allowed file types, and the app includes an image editor to let customers crop images in your desired format. Let customers upload photo upload on any page on your store. more Fast upload of any file type up to 5GB in size. Image editor that allows cropping with predefined ratios and crop shapes. Preview of the uploaded image on the upload field and cart page. File Validations. Configure min/max file size and image dimensions. File conversion of advanced file formats e.g (PDF/Ai) into images.
Allow your customers to upload files from any source easily. Empower your customers to confidently upload any file or image to your store. Our feature seamlessly integrates with local files, Facebook, Instagram, Twitter, and other platforms. Plus, it comes with a built-in image editor, additional pricing options, conditional logic, and more. Our app is compatible with the homepage, collection pages, and buy button. It seamlessly integrates with your theme and requires no code insertion, making it easy to set up. Empower your customers to confidently upload any file or image to your store. Our feature seamlessly integrates with local files, Facebook, Instagram, Twitter, and other platforms. Plus, it comes with a built-in image editor, additional pricing options, conditional logic, and more. Our app is compatible with the homepage, collection pages, and buy button. It seamlessly integrates with your theme and requires no code insertion, making it easy to set up. more Supported upload from your local files, social media, drive, and many more Upload anywhere from collection, homepage, product and support buy button Built in image editor, Conditional logic, Additional pricing and many more Synchronize and back up your data using google drive Multiple file upload on the same time, unlimited upload field, up to 5 GB files
Present your negotiated UPS parcel rates as options in the checkout process. Connect your Unishippers account and retrieve your negotiated rates to offer real-time shipping quotes during checkout. Use the packaging algorithm to quote packages that will be charged for dimensional weight. Ground with Freight Pricing, SurePost, and Simple Rate supported. Automatically detect address types, include insurance, use transit time to limit Ground service on perishable products, and accurately estimate delivery dates by specifying order cut-off times and lead-time offsets. Connect your Unishippers account and retrieve your negotiated rates to offer real-time shipping quotes during checkout. Use the packaging algorithm to quote packages that will be charged for dimensional weight. Ground with Freight Pricing, SurePost, and Simple Rate supported. Automatically detect address types, include insurance, use transit time to limit Ground service on perishable products, and accurately estimate delivery dates by specifying order cut-off times and lead-time offsets. more Identifies billable weight as the greater of actual or dimensional weight. Capable of providing quotes for GFP, SmartPost, and Simple Rate services. Automatically detect address type and capture the residential delivery fee. Limit Ground service by transit time to protect perishable products. Specify order cut-off times and lead-times for accurate delivery estimates.
Increase your revenue with upsell and cross sell pop ups tuned with funnels Mobile-friendly, a responsive pop-up layout that looks good on mobile devices. Automatically proposes goods based on sales history. Customizing colors, fonts, elements shapes. All changes can be stored as templates for use in the future. Mobile-friendly, a responsive pop-up layout that looks good on mobile devices. Automatically proposes goods based on sales history. Customizing colors, fonts, elements shapes. All changes can be stored as templates for use in the future. more Easily customize your pop up - change colors, background, and more Sell more with funnels using either autopilot or manual modes Increase your AOV with upsell and cross sell offers
Smart Flow: post-purchase upsells, one-click setup, templates, analytics, bundles set up in minutes! Integrated seamless post-purchase upsells. Smart Flow offers easy setup, custom designs, premade templates, one-click upsells, and detailed analytics. Enhance your strategy with A/B testing, personalized offers, and thank you page deals. Great for Shopify users wanting to maximize sales, reduce cart abandonment, improve customer satisfaction, drive repeat purchases, track performance, optimize campaigns, and enhance the overall shopping experience effortlessly. Smart Flow helps you succeed. Integrated seamless post-purchase upsells. Smart Flow offers easy setup, custom designs, premade templates, one-click upsells, and detailed analytics. Enhance your strategy with A/B testing, personalized offers, and thank you page deals. Great for Shopify users wanting to maximize sales, reduce cart abandonment, improve customer satisfaction, drive repeat purchases, track performance, optimize campaigns, and enhance the overall shopping experience effortlessly. Smart Flow helps you succeed. more Design custom upsells w/ drag & drop builder & ready-to-use responsive templates Target offers using product data, customer info & purchase data for max impact Add timers, quantity limits & variant pickers to create urgency & flexibility Track performance w/ detailed analytics on conversions & revenue per funnel Customize shipping rates & display rules to match your exact business needs
Upsell Cart App to Improve AOV - Discounts, Free Shipping, Cross Sell & Quick Slide Cart Upsell cart helps you highlight additional products to customers as they add items to their cart which may increase your AOV. Our Quick Upsell app helps you turn every cart into a bigger sale — all before checkout. With features like upsell cart, popup cart & mini cart drawer, you can show smart product suggestions and irresistible discounts right when shoppers are most likely to buy. The cart widget makes it easy to add pre-purchase offers without interrupting the shopping flow. Upsell cart helps you highlight additional products to customers as they add items to their cart which may increase your AOV. Our Quick Upsell app helps you turn every cart into a bigger sale — all before checkout. With features like upsell cart, popup cart & mini cart drawer, you can show smart product suggestions and irresistible discounts right when shoppers are most likely to buy. The cart widget makes it easy to add pre-purchase offers without interrupting the shopping flow. more One-click upsells in the mini cart or popup cart to encourage bigger orders. Custom discounts that work with Shopify’s multiple discount combinations Pre-purchase upsell offers based on what’s already in the cart. Rewards Progress Bar: Motivate customers to spend more by showing spending goals Product recommendations using Shopify’s AI or your own chosen items.
Easily create pre- and post-purchase upsell offers. Design customization helps increase conversion. With Upsell Hero you can set up and publish your offers manually or upsell on autopilot using our smart auto upsells technology, or both. In a single configuration, you can trigger the offer by specific collections or product variants and recommend multiple products. Pre-purchase offers are displayed as a highly converting mobile-first pop-up that you can customize to fit your store using in-app design builder. Multiple languages are supported. The app integrates well with popular page builders. With Upsell Hero you can set up and publish your offers manually or upsell on autopilot using our smart auto upsells technology, or both. In a single configuration, you can trigger the offer by specific collections or product variants and recommend multiple products. Pre-purchase offers are displayed as a highly converting mobile-first pop-up that you can customize to fit your store using in-app design builder. Multiple languages are supported. The app integrates well with popular page builders. more In-app offer design builder with multi-language support and live theme preview. Mobile-first upsell pop-up: fast and no code needed on install or uninstall. Smart auto upsells: frequently bought together, trending and best selling. In-cart and product page pop-up upsells. Collection and variant triggers. Post-purchase one click upsell with multi-language support and live preview.
Increase AOV and total revenue with upsell and cross-sell popups and targeted discount offers. Increase average order value using add to cart and checkout upsell popups shown to existing visitors at the right moment. Upsell Popup helps you grow revenue with small, high-impact wins like upsells, cross-sells, Buy One, Get One (BOGO), and discounts, without changing your checkout. Generate more revenue from exisiting traffic. Mobile-friendly design. No coding required. Match your store branding and launch in minutes. Easy to set up, backed by online support, and designed to pay for itself. Increase average order value using add to cart and checkout upsell popups shown to existing visitors at the right moment. Upsell Popup helps you grow revenue with small, high-impact wins like upsells, cross-sells, Buy One, Get One (BOGO), and discounts, without changing your checkout. Generate more revenue from exisiting traffic. Mobile-friendly design. No coding required. Match your store branding and launch in minutes. Easy to set up, backed by online support, and designed to pay for itself. more Trigger upsells on Add to Cart, Checkout CTA events, or ANY button click Use AI recommendations to suggest relevant products and raise Ave Order Value Generate more revenue by adding targeted discounts directly inside upsell popups Serve localised upsell popups with multi-language and currency support Increase conversions without slowing your store page speed or performance
Upsell effectively using AI: Automate in-cart upsells, checkout upsells & bundles to boost sales. Upsell Wizard transforms your sales with AI-driven upselling and cross-selling. Master in-cart upselling, checkout upsells, and post-purchase offers with ease. Boost your average order value through strategic upsell funnels, offering discounted upsells and 'buy x get y' deals. Enjoy hassle-free setup as Upsell Wizard's AI automates compelling product suggestions and upsell opportunities. Perfect for smooth, intelligent upselling. Questions? Our US-based support team is here to help. Upsell Wizard transforms your sales with AI-driven upselling and cross-selling. Master in-cart upselling, checkout upsells, and post-purchase offers with ease. Boost your average order value through strategic upsell funnels, offering discounted upsells and 'buy x get y' deals. Enjoy hassle-free setup as Upsell Wizard's AI automates compelling product suggestions and upsell opportunities. Perfect for smooth, intelligent upselling. Questions? Our US-based support team is here to help. more Upsell and cross sell related products, different variants, and bundles. Trigger upsell offers with specific variants, products, tags or collections. Supports "buy X get Y" discounts and free products. Translate everything your customers see into the language of your choosing. Built to work with Shopify's native discount system & new post-purchase flows.
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About Custom rules Apps for Shopify
Custom rules apps are essential tools for Shopify merchants looking to enhance their store's functionality and improve customer experience. These specialized applications help store owners streamline operations, increase sales, and provide better service to their customers.
When choosing a custom rules app for your Shopify store, consider factors such as features, pricing, customer support, and compatibility with your theme and other apps. Reading reviews from other merchants can also provide valuable insights into the app's performance and reliability.
The apps listed on this page represent some of the best custom rules solutions available in the Shopify App Store. Each has been selected based on its functionality, user ratings, and overall value for Shopify merchants.