Grow your email & SMS list and recover abandoning shoppers with spin-to-win popups and smart bars. BoostPop gives you popups, bars and real-activity social proof in one app. Capture emails and SMS with popups and spin-to-win wheels, announce offers with free-shipping and countdown bars, and show real orders, low stock and live shoppers. Target each campaign by exit intent, page, device, geo, language and cart. Signups sync to Klaviyo, Mailchimp, Omnisend, Seguno and MailPass. Every trace is removed from your theme on uninstall. Works with Shopify Sidekick to check, create and switch widgets. BoostPop gives you popups, bars and real-activity social proof in one app. Capture emails and SMS with popups and spin-to-win wheels, announce offers with free-shipping and countdown bars, and show real orders, low stock and live shoppers. Target each campaign by exit intent, page, device, geo, language and cart. Signups sync to Klaviyo, Mailchimp, Omnisend, Seguno and MailPass. Every trace is removed from your theme on uninstall. Works with Shopify Sidekick to check, create and switch widgets. more Wheel of Fortune & spin-to-win popups to boost email and SMS opt-ins Product upsells inside any popup - trending, top sellers, or hand-picked Smart targeting: exit intent, page, device, geo, language, behavior Real-activity social proof: recent orders, low stock & live shoppers Zero ghost code: nothing stays in your theme after uninstall
Custom CSS Shopify Apps
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Supercharge Sales and Increase Order Value with a User-Friendly Cart Upgrade Create a seamless, user-friendly slide cart that complements your website's style and optimizes your Average Order Value (AOV). Our feature-packed cart builder ensures customer satisfaction and simplifies the cart process.Effortlessly maximize revenue with upselling and cross-selling options, and incorporate a sticky cart button to enhance conversions and reduce cart abandonment. Explore the capabilities of Boosty Cart Drawer Cart Upsell, making every cart interaction an opportunity for growth. Create a seamless, user-friendly slide cart that complements your website's style and optimizes your Average Order Value (AOV). Our feature-packed cart builder ensures customer satisfaction and simplifies the cart process.Effortlessly maximize revenue with upselling and cross-selling options, and incorporate a sticky cart button to enhance conversions and reduce cart abandonment. Explore the capabilities of Boosty Cart Drawer Cart Upsell, making every cart interaction an opportunity for growth. more Show Sticky Add to Cart, Slide Cart to desktop or mobile Display Upsell Product Recommendations (Cart Upsell) Create Free Shipping Progressive Bar, Cart Countdown Timer Create an Add-On option for shipping insurance or other products of your choice. Improve the view cart button's visibility with a sticky cart button.
Gift Box & Bundle Builder: Upsell/CRO/AOV/BOGO/Discount/Sales Funnels/Flash & Sales box, tape, card. Box King – Your Ultimate Bundle Building Companion! Drive sales with our feature-rich Bundle Builder! Enhance success by raising AOV with custom bundles. Customize bundles, let customers mix and match for personalized gift boxes. Optimize revenue with well-designed Upsell, CRO, and AOV-boosting funnels, including captivating Flash & Sales boxes that make your store stand out and entice customers. Global success: Box King helps strategically liquidate surplus inventory with pre-created bundles. Box King – Your Ultimate Bundle Building Companion! Drive sales with our feature-rich Bundle Builder! Enhance success by raising AOV with custom bundles. Customize bundles, let customers mix and match for personalized gift boxes. Optimize revenue with well-designed Upsell, CRO, and AOV-boosting funnels, including captivating Flash & Sales boxes that make your store stand out and entice customers. Global success: Box King helps strategically liquidate surplus inventory with pre-created bundles. more Maximize revenue with Upsell, CRO, AOV funnels, and exciting Flash & Sales Boxes Drive purchases with crafted promos, integrating discounts, deals, and freebies No hassle inventory: Bundle sync, from 3PL to Fulfilment, streamlined processes Global success: Box King helps liquidate surplus inventory via pre-built bundles Boost store revenue with Box King—every bundle is a sales opportunity!
The complete Breadcrumbs & Subcategories solution for serious stores, built for real navigation. Built for stores serious about SEO and UX. Not just Home > Collection > Product, this app creates complete, accurate breadcrumbs and subcategories from your real category tree. Supports products in multiple collections with smart paths and visitor aware behaviour for smoother navigation. Organize with drag and drop, unlimited nesting, bulk moves, and fast search for large catalogs. Auto build from menus or fine tune every detail manually. Works with Online Store 2.0 and legacy themes 1.0. Built for stores serious about SEO and UX. Not just Home > Collection > Product, this app creates complete, accurate breadcrumbs and subcategories from your real category tree. Supports products in multiple collections with smart paths and visitor aware behaviour for smoother navigation. Organize with drag and drop, unlimited nesting, bulk moves, and fast search for large catalogs. Auto build from menus or fine tune every detail manually. Works with Online Store 2.0 and legacy themes 1.0. more Instant breadcrumbs from your collection tree. Theme-ready no code edits Auto-build or fully customize your categories tree with maximum flexibility Flexible breadcrumb placement optimized for desktop and mobile layouts Dynamic multi collection breadcrumbs that follow the customer path accurately Built-in JSON-LD breadcrumbs for rich result with clean schema trusted by Google
Optimize Your Store's Navigation with Custom Breadcrumbs Our app is a crucial asset for merchants aiming to enhance SEO rankings and streamline user experience. Ideal for businesses of any size, our app simplifies intricate hierarchies, ensuring effortless navigation and effective customer engagement. Whether you're a growing e-commerce store or an established business, Breadcrumbs optimizes visibility and provides a user-friendly browsing journey. Streamline your online presence effortlessly for improved customer satisfaction and increased traffic. Our app is a crucial asset for merchants aiming to enhance SEO rankings and streamline user experience. Ideal for businesses of any size, our app simplifies intricate hierarchies, ensuring effortless navigation and effective customer engagement. Whether you're a growing e-commerce store or an established business, Breadcrumbs optimizes visibility and provides a user-friendly browsing journey. Streamline your online presence effortlessly for improved customer satisfaction and increased traffic. more Improve SEO rankings and drive organic traffic. Customize appearance and position effortlessly. Create unique hierarchies for categories and products. Enhances SEO by generating a JSON-LD BreadcrumbList schema
Show breadcrumbs on your product, article, and blog pages. Lightning fast with a one-click setup. Drag and place breadcrumbs across store - catalogs, products, blogs, collections. Enhances SEO with structured data for search engines. Improves navigation with clear trails - reducing bounces & make users stick around. Customize with tracked visitor paths for tailored shopping journeys based on behavior. Intuitive setup or custom CSV. Mobile-responsive design ensures optimal experience. Need more? Chat support for custom requirements. Covers rich schema to usability increasing sales. Drag and place breadcrumbs across store - catalogs, products, blogs, collections. Enhances SEO with structured data for search engines. Improves navigation with clear trails - reducing bounces & make users stick around. Customize with tracked visitor paths for tailored shopping journeys based on behavior. Intuitive setup or custom CSV. Mobile-responsive design ensures optimal experience. Need more? Chat support for custom requirements. Covers rich schema to usability increasing sales. more Lightning-Fast Performance: Parallel tech ensures zero impact on speed. Enhanced User Retention: Easy navigation boosts satisfaction. Robust Helpdesk: Fast support integrated into your store. Unlimited Navigation: Customize levels via CSV file. Landing Page Compatibility: Works with GemPages, PageFly.
Boost AOV with bundles and upsell app for product bundles, BOGO, volume discounts, & upsell offers Create product bundles with Bristm (Previously Rebolt) to increase AOV through bundle discounts, BOGO offers, Buy X Get Y, free gifts, and upsells. Build Shopify bundles with mix-and-match, combo offers, and a build-your-own bundle builder. Boost sales with frequently bought together (FBT), cross-sells, add-ons, cart offers, checkout offers, and post-purchase upsells. Drive larger orders with volume discounts, quantity breaks, product page upsells, and advanced analytics to track performance. Create product bundles with Bristm (Previously Rebolt) to increase AOV through bundle discounts, BOGO offers, Buy X Get Y, free gifts, and upsells. Build Shopify bundles with mix-and-match, combo offers, and a build-your-own bundle builder. Boost sales with frequently bought together (FBT), cross-sells, add-ons, cart offers, checkout offers, and post-purchase upsells. Drive larger orders with volume discounts, quantity breaks, product page upsells, and advanced analytics to track performance. more Create high-converting bundle layouts & upsell offers with bundle builder Grow store AOV with Buy X Get Y, BOGO, bundle offers & volume discounts Sell more products using mix and match bundles, combo bundles & Quantity Breaks Recommend products with FBT, checkout upsell & post-purchase upsells Maximize every order with one-click cart upsell, product add-ons & free gifts
Calendar & appointment booking app for rentals, tours, tickets, events, services, classes and more. Calendly for Shopify: Turn anything into a bookable service and start selling within minutes—no tech knowledge required. BookThatApp booking app lets you add custom questions to booking forms, send email or SMS reminders, and schedule bookings with Google Calendar, Outlook, iCal, Zoom, and more. Whether you're a tour provider, hotel, event organizer, class instructor (yoga, music, etc.), or rental business (dress rentals, boat rentals), BookThatApp manages all your appointment scheduling needs. Calendly for Shopify: Turn anything into a bookable service and start selling within minutes—no tech knowledge required. BookThatApp booking app lets you add custom questions to booking forms, send email or SMS reminders, and schedule bookings with Google Calendar, Outlook, iCal, Zoom, and more. Whether you're a tour provider, hotel, event organizer, class instructor (yoga, music, etc.), or rental business (dress rentals, boat rentals), BookThatApp manages all your appointment scheduling needs. more Sends automated emails and text for reminders, confirmations, rescheduling, etc. Powerful scheduling capabilities across services, employees and locations Seamless integration with external calendars, Reserve with Google and other apps Group booking: you can allow multiple customers to book the same timeslot. Manage one-time and recurring booking subscriptions including payments & waivers
Create stylish mega menus that elevate store design & navigation. Help shoppers find products faster Buddha Mega Menu helps merchants create clear and organized store navigation for desktop and mobile devices. Merchants can build multi-level mega menus with images, products, collections, tabs, and custom content without coding. The app supports responsive layouts, mobile-friendly navigation, and flexible menu design to help customers browse stores and find products more easily. Add sale banners, countdown timers, animated icons, and badges to highlight promotions and products. Buddha Mega Menu helps merchants create clear and organized store navigation for desktop and mobile devices. Merchants can build multi-level mega menus with images, products, collections, tabs, and custom content without coding. The app supports responsive layouts, mobile-friendly navigation, and flexible menu design to help customers browse stores and find products more easily. Add sale banners, countdown timers, animated icons, and badges to highlight promotions and products. more Choose from 4 submenu layouts: Tree, Simple, Tabbed & Contact Form Display featured images for collections, products, blogs, pages, banners & lists Show featured products with Add to Cart buttons directly in the menu SALES: Banners & Promotional blocks + Countdown timers for promotions GLOBAL: 1-Click Menu translation
All-In-One Bundles: Bundle Builder, Box Builder, Build A Box, Gift Box Builder, Mix and Match Bundle Grow AOV with a powerful Bundle Builder to Create and Buy personalized bundles. Build a Build a Box, Custom Bundle, or Mix and Match experience with Fixed Bundles, byob, addons, and a flexible Gift Box Builder. Let shoppers create the perfect gift box using Quantity Breaks, fixed pricing, and smart bundle rules. Optimize performance with Conversion Funnel Analytics. Create premium bundles, gift boxes, Build a Box experiences, Mix and Match offers, Fixed Bundles, byob & Custom Bundle to buy more. Grow AOV with a powerful Bundle Builder to Create and Buy personalized bundles. Build a Build a Box, Custom Bundle, or Mix and Match experience with Fixed Bundles, byob, addons, and a flexible Gift Box Builder. Let shoppers create the perfect gift box using Quantity Breaks, fixed pricing, and smart bundle rules. Optimize performance with Conversion Funnel Analytics. Create premium bundles, gift boxes, Build a Box experiences, Mix and Match offers, Fixed Bundles, byob & Custom Bundle to buy more. more Increase order value with Build a Box & Mix and Match Bundle Builder Reward bigger purchases with Fixed Bundles & Quantity Breaks Bundle Builder Create personalized gift boxes with Bundle Builder & Gift Box Builder & byob Launch custom bundle builder offers in minutes with no coding Monitor bundle builder performance with real-time conversion analytics
Bullseye’s Store Locator App is a sophisticated store, product, and dealer locator app. Bullseye’s Shopify Store Locator App can be added to your Shopify store in minutes without the help of a developer. Our HTML5, responsive interface is designed to serve up the optimal search interface regardless of the user’s device, location, or language (nearly 60 languages are supported). Bullseye Store Locator makes it easy for your customers to quickly find the locations nearby that carry your products or provide your services. Bullseye’s Shopify Store Locator App can be added to your Shopify store in minutes without the help of a developer. Our HTML5, responsive interface is designed to serve up the optimal search interface regardless of the user’s device, location, or language (nearly 60 languages are supported). Bullseye Store Locator makes it easy for your customers to quickly find the locations nearby that carry your products or provide your services. more Responsive mobile-friendly and SEO optimized locators, city, and local pages Fully customizable locator design ussing onboard tools, CSS, or Javascript Comprehensive backend for managing locations, including hours and more Robust and customizeable lead collection and management Full suite of reprting & analytics, as well as integration with Goole Analytics
Sell product kits, multipacks & mix and match bundles with auto inventory sync & order fulfillment Increase AOV with product bundles that work like regular products in your store. Bundle Kit automatically syncs inventory, pricing, and weight in real-time — no manual updates needed. Create kits, multi-packs, or mix-and-match bundles with flexible pricing options. Component SKUs automatically add to orders for easy 3PL fulfillment. Built for reliability and performance, Bundle Kit works with all themes and sales channels. No coding required — install and start bundling in minutes. Increase AOV with product bundles that work like regular products in your store. Bundle Kit automatically syncs inventory, pricing, and weight in real-time — no manual updates needed. Create kits, multi-packs, or mix-and-match bundles with flexible pricing options. Component SKUs automatically add to orders for easy 3PL fulfillment. Built for reliability and performance, Bundle Kit works with all themes and sales channels. No coding required — install and start bundling in minutes. more Real-time inventory sync - Automatically updates to prevent overselling Multi-SKU order fulfillment - Breaks down bundles into component SKUs for 3PL Integrates with 3PL, WMS & POS - Seamless order and inventory management Multiple bundle types - Kits, multi-packs, mix-and-match, and more Works with all sales channels - POS, Online Store, and third-party apps
Create high-converting bundle offers and boost sales with quantity breaks, volume discounts! Bundle products and increase your sales with our bundle app! Easily create and manage localized bundle offers in multiple languages to boost revenue and attract more customers. Offer custom product bundles, apply discounts, and increase average order value effortlessly with upsell and cross sell offers. Perfect for Shopify stores looking to enhance their product mix and drive more sales. Start optimizing your bundles Shopify strategy today and watch your profits grow with bundles app! Bundle products and increase your sales with our bundle app! Easily create and manage localized bundle offers in multiple languages to boost revenue and attract more customers. Offer custom product bundles, apply discounts, and increase average order value effortlessly with upsell and cross sell offers. Perfect for Shopify stores looking to enhance their product mix and drive more sales. Start optimizing your bundles Shopify strategy today and watch your profits grow with bundles app! more Create & upsell volume discount quantity breaks & bundles in your shop Set up Quantity Breaks, Classic Bundles, Mix-And-Match Bundles, Tiered Discounts Choose bundle discount type: percentage discount, fixed amount, fixed price etc. Increase conversions with bundle landing pages and upsell cross-sell offers Seamlessly integrate bundles with subscription products for recurring revenue.
Boost AOV: Bundles, BOGO & Volume Discounts - Visual Bundle Display, Variant Swatches, Cross-Sells! Sell more and boost AOV on every product page! Bundlex puts bundles, BOGO deals, quantity breaks, and cross-sell offers inside one fully visual widget - showing each item with its own image, variant picker and price. Add urgency with a countdown timer and sticky add-to-cart bar, keep stock pressure live with low stock alerts, and translate the entire widget into any language with one-click AI translation. Built-in color themes, custom CSS, and zero code required. All-in-one free bundles app! Sell more and boost AOV on every product page! Bundlex puts bundles, BOGO deals, quantity breaks, and cross-sell offers inside one fully visual widget - showing each item with its own image, variant picker and price. Add urgency with a countdown timer and sticky add-to-cart bar, keep stock pressure live with low stock alerts, and translate the entire widget into any language with one-click AI translation. Built-in color themes, custom CSS, and zero code required. All-in-one free bundles app! more Show bundles with images, variants & prices - buyers know what's inside Color chips, pill buttons, image swatches - match your store instantly Boost AOV with cross-sells inside any offer, each with its own price and variant Countdown timer, sticky cart bar & low stock alerts - drives conversions One-click AI translation for every store language - no copywriter needed
Busy Meter - Product processing and delivery estimates made easy Busy Meter helps merchants set clear customer expectations before an order is placed. Display dynamic processing and delivery promises that can vary by product, variant, collection, vendor, or your entire store. Order promises automatically adapt to your current workload, helping you communicate realistic timelines, reduce support requests, and improve the shopping experience. Busy Meter helps merchants set clear customer expectations before an order is placed. Display dynamic processing and delivery promises that can vary by product, variant, collection, vendor, or your entire store. Order promises automatically adapt to your current workload, helping you communicate realistic timelines, reduce support requests, and improve the shopping experience. more Display dynamic order processing and delivery promises Create promises for products, variants, collections, and more Automatically adjust promises based on store workload Customize the widget to match your store's branding Quick setup with no coding required
Reorder popup, reorder page in new customer account & reorder reminders to increase repeat orders Every store loses repeat revenue: customers forget to reorder, can't find what they bought, or give up halfway through. This app fixes all. Give every customer a 1-click reorder experience. Customers can edit quantity, add product line item properties, order notes, subscription reorder. Send automated reorder reminders at the right time. Show all previously bought products on 1 page. Show the previously bought badge to remind the customer. Works with new customer account, B2B, checkout, TYP, POS Every store loses repeat revenue: customers forget to reorder, can't find what they bought, or give up halfway through. This app fixes all. Give every customer a 1-click reorder experience. Customers can edit quantity, add product line item properties, order notes, subscription reorder. Send automated reorder reminders at the right time. Show all previously bought products on 1 page. Show the previously bought badge to remind the customer. Works with new customer account, B2B, checkout, TYP, POS more Reorder popup in new customer account. Carry forward product line item property Reorder reminder sent at the right time: customer-defined, usage-based, AI-based Show full past order history including out-of-stock products – all in one page Works with popular email marketing & SMS apps for replenishment reminders. Works with new customer account, Checkout, thank you page, home page, POS, B2B
Sell your products directly on any website, with the ecommerce tools you need to drive sales. Sell your products directly on your personal website, business site, or blog. Buy Button Plus connects your existing website to Shopify, so customers can shop without ever leaving your site. Turn your site into a full-featured storefront with subscriptions, discounts, saved carts and ecommerce tools you need to sell more. Install the app, create a Buy Button that matches your brand, and start selling in minutes. Sell your products directly on your personal website, business site, or blog. Buy Button Plus connects your existing website to Shopify, so customers can shop without ever leaving your site. Turn your site into a full-featured storefront with subscriptions, discounts, saved carts and ecommerce tools you need to sell more. Install the app, create a Buy Button that matches your brand, and start selling in minutes. more Sell products anywhere: Wordpress, Wix, Squarespace, Webflow, Lovable, and more! Full support for digital and physical subscriptions Promo codes, flash sales, BOGO - supports all Shopify's discount types Button-level analytics tell you exactly which Buy Buttons are driving sales Saved Cart follows shoppers across your whole site and between visits
Increase conversions & boost sales with sticky add to cart bar, sticky cart & quick buy button. Turn visitors into buyers with sticky add to cart bar, sticky cart, sticky buy me button, and quick buy button that make shopping faster & checkout easier. Improve mobile shopping experiences, reduce cart abandonment & recover more sales with floating cart, cart preview, and instant purchase experiences designed to increase conversions & average order value. Use eye-catching animations, auto-match your store branding, and apply seasonal themes to create a smooth and engaging shopping experience. Turn visitors into buyers with sticky add to cart bar, sticky cart, sticky buy me button, and quick buy button that make shopping faster & checkout easier. Improve mobile shopping experiences, reduce cart abandonment & recover more sales with floating cart, cart preview, and instant purchase experiences designed to increase conversions & average order value. Use eye-catching animations, auto-match your store branding, and apply seasonal themes to create a smooth and engaging shopping experience. more Black Friday Cyber Monday Countdown: Create urgency with a timer to boost sales Sticky Add To Cart Bar + Countdown: Always visible with urgency boosting timer Introducing Sticky Cart: Simplify Checkout with an Always Visible Floating cart Quick Buy Button: Streamlining Purchases Directly from Homepage and Collections Remember My Cart: Seamlessly Access Your Cart Across Multiple Devices
If you need an easy way to automate multiple on-site content updates, then look no further! Tired of making updates in the middle of the night during your already hectic site sales events? If you need an easy way to automate on-site updates for your banners, site alerts, products, pages, grid sections and blog then look no further! There is finally an app that allows you to both create and schedule limitless site events, letting you rest while our automation engine does the work for you! This app is simple to install, easy to use, completely customizable & no coding skills required! Tired of making updates in the middle of the night during your already hectic site sales events? If you need an easy way to automate on-site updates for your banners, site alerts, products, pages, grid sections and blog then look no further! There is finally an app that allows you to both create and schedule limitless site events, letting you rest while our automation engine does the work for you! This app is simple to install, easy to use, completely customizable & no coding skills required! more Easily combine many various content updates into a single "Event" schedule Create & schedule unlimited "Events" to effortlessly maximize your sales efforts Content updates include Banners, Announcements, Products, Pages and MUCH MORE Create unlimited sections and place them anywhere on the site with Snippets Automation engine publishes your content updates exactly at the day/time you set
Let shoppers build a box, kit, pack, and bundle with mix and match product selection. BYOB - Build Your Own Bundles helps merchants create build-a-box and mix-and-match bundle pages where shoppers choose their own products, unlock discounts, and add the full bundle to cart. It works well for snack boxes, gift boxes, sample packs, variety packs, kits, routines, and stores with large catalogs that need flexible product selection. Customize the bundle layout in the theme editor, promote bundles across your store. Explore sample bundles or contact us for a quick consultation. BYOB - Build Your Own Bundles helps merchants create build-a-box and mix-and-match bundle pages where shoppers choose their own products, unlock discounts, and add the full bundle to cart. It works well for snack boxes, gift boxes, sample packs, variety packs, kits, routines, and stores with large catalogs that need flexible product selection. Customize the bundle layout in the theme editor, promote bundles across your store. Explore sample bundles or contact us for a quick consultation. more Create build-a-box, mix-and-match, and custom product bundle pages Boost AOV with fixed price, tiered, BXGY, and multi-condition discounts Feature bundle products from home page, collections, product pages, and top menu Track bundle page views to see whether shoppers are finding your bundles Customize bundle layouts and styling directly in the theme editor
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About Custom CSS Apps for Shopify
Custom CSS 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 css 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 css solutions available in the Shopify App Store. Each has been selected based on its functionality, user ratings, and overall value for Shopify merchants.