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Out of stock Shopify Apps

Enhance your Shopify store with the best Out of stock apps. Get insights on features, pricing, and user reviews for 2026.

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We've analyzed thousands of out of stock apps to identify the top performers based on ratings and install counts.

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Restock alerts via SMS/email + Meta. Auto-recover sales lost to stockouts! SpurIT Back in Stock Alerts allows you to manage back in stock notifications to bring your shoppers back and prevent lost sales. The app checks stock levels regularly and automatically sends emails, sms alerts or even Meta Messenger (Facebook) when the product is back in stock. The pop-up appears when a user clicks on the icon badge. It can also pop up automatically when a user is viewing an out-of-stock product. SpurIT Back in Stock Alerts allows you to manage back in stock notifications to bring your shoppers back and prevent lost sales. The app checks stock levels regularly and automatically sends emails, sms alerts or even Meta Messenger (Facebook) when the product is back in stock. The pop-up appears when a user clicks on the icon badge. It can also pop up automatically when a user is viewing an out-of-stock product. more Fully customizable design of the ‘Notify me’ badge and ‘Back in Stock’ pop-up Editable back in stock notification templates in different languages Customers specify how long they can wait for the product to be back in stock Automated notifications and reminders for restocked items via email, sms or Meta CSV data import in one click

4.8(Reviews)

Pre-orders and Buy Now, Ship Later with held orders and combined shipping. Addora offers stores three paths: Pre-orders, Ship Later, or both in one app. Addora is the only app where customers can choose Ship Later at checkout and pick exactly when their combined orders ship - a planned option, not a post-purchase fix. Split mixed carts so in-stock items ship now while pre-orders wait, or opt to hold the whole order until everything's ready - your choice. One dashboard for dates, held orders, and exceptions. Addora offers stores three paths: Pre-orders, Ship Later, or both in one app. Addora is the only app where customers can choose Ship Later at checkout and pick exactly when their combined orders ship - a planned option, not a post-purchase fix. Split mixed carts so in-stock items ship now while pre-orders wait, or opt to hold the whole order until everything's ready - your choice. One dashboard for dates, held orders, and exceptions. more Reduce checkout friction and cart abandonment caused by shipping fees. Build a Box for collectors: vinyl, comics, TCG, k-pop merch, etc. Conditions for discounts, free shipping, international shipping, base fees. Split mixed carts: ship in-stock items now, auto-release the rest later. Automatic emails remind shoppers and alert them when items are ready.

5.0(Reviews)

Offers a seamless experience for preorders and partial payments. Don't miss out on extra sales and bookings by allowing pre-orders from your customers before a product is really available! We provide a simple yet effective UI. This is really simple to use. When you are running out of stock, Preorder make your products available. You can give option of partial payment to your customers. Advanced PreOrder(Partial Pay) helps merchants to boost their sales. Don't miss out on extra sales and bookings by allowing pre-orders from your customers before a product is really available! We provide a simple yet effective UI. This is really simple to use. When you are running out of stock, Preorder make your products available. You can give option of partial payment to your customers. Advanced PreOrder(Partial Pay) helps merchants to boost their sales. more Set Pre-Orders for items out of stock or not available. Works with variants too! Try before you buy lets customers try items before making a purchase. Set the availability for preorders and Coming soon. Notify customers and keep them updated; send quote requests to the merchant. Show Pre-order/Partial button based on your geography/country selected.

4.7(Reviews)

Easily trigger automatic back in stock alerts to customers when you restock their favorite products. Send automatic, real-time back in stock alerts and restock notifications to customers when their favorite products are restocked. Shoppers can sign up for unlimited number of alerts using simple forms on your product and collection pages. When you restock those products, Alert Me automatically triggers back in stock alerts to customers, truly hands-free and effortless. Alert Me - Restock Alerts makes it easy to grow your revenue by alerting customers to buy products they already love! Send automatic, real-time back in stock alerts and restock notifications to customers when their favorite products are restocked. Shoppers can sign up for unlimited number of alerts using simple forms on your product and collection pages. When you restock those products, Alert Me automatically triggers back in stock alerts to customers, truly hands-free and effortless. Alert Me - Restock Alerts makes it easy to grow your revenue by alerting customers to buy products they already love! more Hands Free: Trigger restock alerts without manual work - set it and forget it! Real-time: Alert Me Restock Alerts are sent instantly to boost your sales! Customizable: Easily change colors of back in stock alerts to match your brand. Cool Analytics: See the most requested out of stock products to plan inventory. Quick Support: We love to help you grow! Contact us to setup your first alerts.

4.3(Reviews)

Effortlessly add pre-orders to any product. Boost sales and unlock your full sales potential. Our app simplifies adding pre-orders to your store, offering all the key features to boost your sales strategy. You can provide flexible payment options like partial payments or pre-order discounts, and allow customers to sign up for stock alerts. With specialized tools for presales and product launches, you'll effortlessly generate hype and increase sales. —Part of the amai App Suite: Enhance your eCommerce. Our app simplifies adding pre-orders to your store, offering all the key features to boost your sales strategy. You can provide flexible payment options like partial payments or pre-order discounts, and allow customers to sign up for stock alerts. With specialized tools for presales and product launches, you'll effortlessly generate hype and increase sales. —Part of the amai App Suite: Enhance your eCommerce. more Automate pre-order dates or enable them based on stock levels. Customize the look and function of pre-orders to match your store. Build launch hype by replacing 'Buy Now' buttons with 'Coming Soon.' Set pre-order limits and display them to create urgency. 24/7 live chat and developer support available when needed.

4.2(Reviews)

Capture sales with Back in Stock alerts, Preorders, Wishlists & Low Stocks. Trusted since 2011. Hundreds of millions of alerts delivered across 25,000+ brands. Don't let out-of-stock products drive customers away. Auto-notify shoppers the moment items are back in stock via email, SMS, and push. Pre-sell and preorder collections before they drop. Capture demand earlier with Wishlists, and create urgency with Low Stock badges. Replace "Out of Stock" with customizable buttons that match your brand, device, and language. Built for high-SKU catalogs to boost cash flow fast. Hundreds of millions of alerts delivered across 25,000+ brands. Don't let out-of-stock products drive customers away. Auto-notify shoppers the moment items are back in stock via email, SMS, and push. Pre-sell and preorder collections before they drop. Capture demand earlier with Wishlists, and create urgency with Low Stock badges. Replace "Out of Stock" with customizable buttons that match your brand, device, and language. Built for high-SKU catalogs to boost cash flow fast. more Instant restock alerts via email, SMS & push - recapture buyers automatically Preorder & pre-sell: collect payment before your inventory even arrives Wishlists & low-stock badges - capture demand at every stage of the journey Fully branded Notify Me & Preorder buttons - set up in minutes, no code needed Demand insights: know exactly what to restock, when, and how much to order

4.9(Reviews)

Send automated email and push notifications to customers on restock products. Using the Back In Stock: Restock Notify app you can now create a list of customers who are interested in out-of-stock products. When a product gets out of stock, customers can sign up for the back-in-stock notification and receive an notification when the product is back in stock. This app helps store owners to manage inventory in an efficient manner and make more sales. Using the Back In Stock: Restock Notify app you can now create a list of customers who are interested in out-of-stock products. When a product gets out of stock, customers can sign up for the back-in-stock notification and receive an notification when the product is back in stock. This app helps store owners to manage inventory in an efficient manner and make more sales. more It automatically identifies sold-out items, and adds a ‘Notify Me’ button. You can customize the content of emails that your subscribers will receive. Fully customize the look and feel of ‘Notify Me’ email popups. Analytics & Reports: Monitor products demand, subscribers & sales. Unlimited back-in-stock requests or notify users.

0.0(Reviews)

Send back in stock alerts automatically to bring customers back to your store and recover lost sales Add "Notify me" button on out of stock product pages to improve client experience. Automatically send back in stock alerts to recover lost sales. Take customers directly to checkout to maximize conversion rates. Add to your store in just two clicks. Fully customize buttons and alerts. Add logo to match your theme. Add button to Collection Pages. Export & integrate with Klaviyo. Use own email address to improve deliverability. Gain insights into high demand products. Selectively hide/show button. Add "Notify me" button on out of stock product pages to improve client experience. Automatically send back in stock alerts to recover lost sales. Take customers directly to checkout to maximize conversion rates. Add to your store in just two clicks. Fully customize buttons and alerts. Add logo to match your theme. Add button to Collection Pages. Export & integrate with Klaviyo. Use own email address to improve deliverability. Gain insights into high demand products. Selectively hide/show button. more Recover lost revenue by automatically sending back in stock alerts and reminders Improve client experience with Notify Me button added for out of stock products Add to your store quickly in two clicks and get online support from our team Fully customize the buttons and alerts in minutes & add Logo to match your brand Add to Collection Page, use own email & Klaviyo, Selectively Show or Hide button

4.7(Reviews)

Convert Out-of-Stock Traffic into Sales with Notify Me Back Button, Restock Alerts & Sidekick AI Add a back in stock notify me button to out-of-stock products, variants and collection pages. Shoppers sign up and get a restock notification by email, WhatsApp or push the moment items are available again. Sell before inventory arrives with pre-order buttons, schedule automatic product launches and prevent overselling with inventory protection. See which products shoppers want most in a demand heatmap. Setup on any Shopify theme in minutes, no coding, in any language with Sidekick AI. Add a back in stock notify me button to out-of-stock products, variants and collection pages. Shoppers sign up and get a restock notification by email, WhatsApp or push the moment items are available again. Sell before inventory arrives with pre-order buttons, schedule automatic product launches and prevent overselling with inventory protection. See which products shoppers want most in a demand heatmap. Setup on any Shopify theme in minutes, no coding, in any language with Sidekick AI. more Customize the button, popup alert form and ready-to-use email templates Notify when in stock per variant, for the exact size or colour shoppers want Track every email sent with logs and a business intelligence report Send emails from your own domain via SMTP, with no third-party email fees Integrates with Klaviyo, Mailchimp, Omnisend, Brevo, Twilio & WhatsApp

4.8(Reviews)

Back in stock alerts that help you recover sales when sold-out products become available again. Recover lost sales with back in stock alerts. Let customers sign up to get notified when a particular product or variant is restocked. The app works with almost all Shopify themes and supports product variants. You can customize the “Notify Me” button text, colors, and email templates to match your store's design. Add the button to product or collection pages easily. No coding needed. Quick to install and easy to use. Turn “out of stock” into “back in stock” and recover lost revenue easily Recover lost sales with back in stock alerts. Let customers sign up to get notified when a particular product or variant is restocked. The app works with almost all Shopify themes and supports product variants. You can customize the “Notify Me” button text, colors, and email templates to match your store's design. Add the button to product or collection pages easily. No coding needed. Quick to install and easy to use. Turn “out of stock” into “back in stock” and recover lost revenue easily more Let customers subscribe & get notified when products are back in stock Send automatic or manual alerts when sold-out products or variants are restocked Edit button text, font color, and background to match your store’s style Sync subscribers to your Shopify customer list for future email marketing Preorder feature is avaibale

5.0(Reviews)

Get more customers to buy more products by sending automated back in stock WhatsApp notifications. Go beyond email and SMS with high-converting, personalised WhatsApp messages that automate sales for your store. Add a customisable opt-in widget to your out-of-stock product pages using our drag & drop editor, allowing customers to easily sign up with their WhatsApp number for restock alerts. They'll receive automated notifications from your WhatsApp Business account. Enjoy flexible, pay-as-you-send pricing to grow your brand affordably. Setup is quick and easy, no technical skills needed. Go beyond email and SMS with high-converting, personalised WhatsApp messages that automate sales for your store. Add a customisable opt-in widget to your out-of-stock product pages using our drag & drop editor, allowing customers to easily sign up with their WhatsApp number for restock alerts. They'll receive automated notifications from your WhatsApp Business account. Enjoy flexible, pay-as-you-send pricing to grow your brand affordably. Setup is quick and easy, no technical skills needed. more Compatibility. Effortlessly customise widgets that match your brands store. Personalised messages. Build customer engagement and loyalty. Fully automated. Messages sent automatically across the customer journey. Real-time insights. Optimise your customer success and sales conversions. Build your customer base. Create, customise, and export reports.

5.0(Reviews)

Recover lost sales with notify me, back in stock & preorder alerts — email, SMS, WhatsApp Recover sales every time you restock or drop a price. Stok sends instant back in stock, price drop & waitlist alerts via Email, SMS, WhatsApp & push. Add 'Notify Me' widgets to PDPs & collections in 5 minutes — no code. Auto-notify customers when items restock, prices drop, or sales start. Boost conversions with repeat reminders, multi-language templates & upsell tips. Track recovered revenue & subscriber growth. For out of stock, sold out, low stock & coming soon. Klaviyo, CSV, 24/7 support. Recover sales every time you restock or drop a price. Stok sends instant back in stock, price drop & waitlist alerts via Email, SMS, WhatsApp & push. Add 'Notify Me' widgets to PDPs & collections in 5 minutes — no code. Auto-notify customers when items restock, prices drop, or sales start. Boost conversions with repeat reminders, multi-language templates & upsell tips. Track recovered revenue & subscriber growth. For out of stock, sold out, low stock & coming soon. Klaviyo, CSV, 24/7 support. more WhatsApp alerts: reach customers on WhatsApp, not just email and SMS Restock alerts: auto-notify by email, SMS & WhatsApp on restock Preorders: take deposits, partial payments and back orders Price drop alerts: tell your waitlist the moment the price falls 27 languages: every customer is alerted in their own language

4.8(Reviews)

Notify Customers with Restock Alert when items are back in stock & make out-of-stock waitlist Krtbite is an all-in-one marketing tool to help you recover lost sales. Don't miss out on lost sales with Back In Stock Alerts, Abandoned carts, and price drop notifications through Emails, and SMS Alerts. Shows the Notify Me!! button on out of stock products and automatically sends notifications when they get in stock. Creates the out-of-stock & price drop waitlists to see products in demand. Fully customize all notifications, grow your mailing list, and much more !! Krtbite is an all-in-one marketing tool to help you recover lost sales. Don't miss out on lost sales with Back In Stock Alerts, Abandoned carts, and price drop notifications through Emails, and SMS Alerts. Shows the Notify Me!! button on out of stock products and automatically sends notifications when they get in stock. Creates the out-of-stock & price drop waitlists to see products in demand. Fully customize all notifications, grow your mailing list, and much more !! more Restock Alerts: Send Automatic back in stock email and SMS alerts Price Drop Alerts: Send price drop alerts to customers when product is on-sale Out of Stock Waitlist: Product analytic to know most in-demand products. Grow Mailing List: Sync to Customer list automatically for email marketing. Fully Customise "Notify me when available" button and Notification templates

5.0(Reviews)

Notify customers by restock alert when items are back in stock & create an out-of-stock waitlist. Back in Stock! Alert Engine is an all-in-one marketing tool to help you recover lost sales. Don't miss out on lost sales with Back In Stock & Restock Alerts, Abandoned carts, price drop, and low stock notifications through Emails. Shows the Notify Me!! button on out of stock products and automatically sends notifications when they get in stock. Creates the out-of-stock & price drop waitlists to see products in demand. Fully customize all notifications, grow your mailing list, and much more !! Back in Stock! Alert Engine is an all-in-one marketing tool to help you recover lost sales. Don't miss out on lost sales with Back In Stock & Restock Alerts, Abandoned carts, price drop, and low stock notifications through Emails. Shows the Notify Me!! button on out of stock products and automatically sends notifications when they get in stock. Creates the out-of-stock & price drop waitlists to see products in demand. Fully customize all notifications, grow your mailing list, and much more !! more Restock Alerts: Send automatic and manual back in stock notifications via Email. Setup Notify Me Buttons in Minutes; Customize Buttons to Match Brand Guidelines. Grow Email Lists & Sync to Email Providers Like Klaviyo. Restock alert, Low stock alert, price drop alert, multilingual tools, and more! Compatible with Almost Every Theme, & Support is Available to Assist 24/7!

4.9(Reviews)

Increase conversions with Preorders, Partial Payments, Back in Stock. PreOrder Bat is a simple, powerful solution to manage pre-orders and product availability on your e-commerce store. Whether you're launching new products, restocking items, or testing demand, PreOrder Bat lets you engage customers before items are available — helping you capture interest and drive early sales. We also provide options for essential customisation within Pre Order Bat / Notify Me / Coming Soon / Back In Stock / Wishlist. 24/7 live chat, Email, Phone and video call Support. PreOrder Bat is a simple, powerful solution to manage pre-orders and product availability on your e-commerce store. Whether you're launching new products, restocking items, or testing demand, PreOrder Bat lets you engage customers before items are available — helping you capture interest and drive early sales. We also provide options for essential customisation within Pre Order Bat / Notify Me / Coming Soon / Back In Stock / Wishlist. 24/7 live chat, Email, Phone and video call Support. more Built for B2B preorders and retail, with full support for multiple locations . Notify Me and Back In Stock alerts with Klaviyo sync to recover missed sales . Split shipping and separate fulfilments for pre-order items. Accept partial payments- customers reserve with a deposit, pay the balance later Drive urgency with countdown timers and FOMO low-stock counter.

4.9(Reviews)

Get notified when stock is low and auto-calculate reorder amounts based on inventory forecasting! This app provides a quick and effective solution to track low stock products and replenish them. Merchbees notifies you and your vendor when the inventory of product is below a chosen threshold. This way, you can restock the products before they are out of stock. You can also set the maximum stock level (order up to level), and Merchbees calculates the reorder quantity automatically. With forecasting module, thresholds are calculated based on the sales velocity of each product and updated daily. This app provides a quick and effective solution to track low stock products and replenish them. Merchbees notifies you and your vendor when the inventory of product is below a chosen threshold. This way, you can restock the products before they are out of stock. You can also set the maximum stock level (order up to level), and Merchbees calculates the reorder quantity automatically. With forecasting module, thresholds are calculated based on the sales velocity of each product and updated daily. more Create unlimited instant and scheduled alerts, and get email/slack notifications Set maximum stock level (order up to level), auto-calculate reorder inventory Configure dynamic thresholds based on forecasting and stock cover days Apply bulk uploads and filter by location, collection, vendor, SKU, and more. Access and export ready-to-use reports on sales, forecasting, and inventory.

4.8(Reviews)

Recover Lost Sales with Instant Back In Stock Alerts via Email, SMS, & Web Push. Never lose a sale due to out-of-stock products! With Back In Stock Notifier, you can automatically notify customers the moment their desired products are restocked—bringing them back to your store and boosting conversions. Why Choose Back In Stock Notifier? Never lose a sale due to out-of-stock products! With Back In Stock Notifier, you can automatically notify customers the moment their desired products are restocked—bringing them back to your store and boosting conversions. Why Choose Back In Stock Notifier? more Instant Alerts – Auto-send email, SMS & push when items restock. "Notify Me" Button – Add a restock alert button to product pages. Know what's in demand and manage your stock more effectively Customizable – Match alerts & widgets to your brand. Smart Insights – Track top-demand products & notifications performance.

0.0(Reviews)

Our advanced solution that offers pre-order, back in stock, restock alert to boost your sales. Supercharge your e-commerce store with Back in Stock Alert! Preorder. Seamlessly integrate popular email service providers like Mailchimp, Omnisend, and Klaviyo. Deliver restock notifications via SMS and "Notify Me" buttons. Leverage preorders for all products. Gain insights and analytics to optimize sales. Reconnect with non-opening customers for maximum conversions. Don't miss sales opportunities and provide an exceptional shopping experience. Supercharge your e-commerce store with Back in Stock Alert! Preorder. Seamlessly integrate popular email service providers like Mailchimp, Omnisend, and Klaviyo. Deliver restock notifications via SMS and "Notify Me" buttons. Leverage preorders for all products. Gain insights and analytics to optimize sales. Reconnect with non-opening customers for maximum conversions. Don't miss sales opportunities and provide an exceptional shopping experience. more Back in Stock & Preorder: Notify customers, enable preorders for sold-out items. Seamless Email Integration: Integrate with Mailchimp, Omnisend, Klaviyo. SMS Notifications: Send restock alerts via SMS for immediate purchases. Insights & Analytics: Optimize sales, make informed decisions. Exceptional Shopping Experience: Maximize sales, provide seamless journey.

0.0(Reviews)

Control demand with customer order limits and recover lost sales with back in stock alerts Set order limits that remember your customers. Create customer lifetime purchase limits by quantity or spend, tracked across all orders, not just per cart. Add min/max cart limits, weight and mixed cart rules by product, variant or tag, with clear customer limit messages at checkout. Sold out? Add a Notify me form so shoppers join the waitlist, then send notify me alerts by email and browser push when you restock. Checkout rules, Shopify Flow and 130+ languages included. Set order limits that remember your customers. Create customer lifetime purchase limits by quantity or spend, tracked across all orders, not just per cart. Add min/max cart limits, weight and mixed cart rules by product, variant or tag, with clear customer limit messages at checkout. Sold out? Add a Notify me form so shoppers join the waitlist, then send notify me alerts by email and browser push when you restock. Checkout rules, Shopify Flow and 130+ languages included. more Lifetime purchase limits per customer, tracked across all orders, not per cart Min/max quantity, price and weight rules by product, variant or product tag Cart limits and mixed cart rules with clear customer limit messages at checkout Notify me alerts by email & browser push when you restock; unlimited signups Checkout rules for payment & shipping methods; Shopify Flow, 130+ languages

4.6(Reviews)

Pre-order manager for coming soon, presale & sold out products. Backorder out-of-stock items easily. Boost sales with Dibs for pre-launch and out-of-stock scenarios. Manage pre order and backorders to enable purchase of coming soon items. Offer partial deposits, book now pay later and automate payment reminders for scheduled collections. Prevent overselling with checkout validation and inventory tracking. Perfect for made to order items, presales and product launches. Replace sold out with a preorder button and coming soon badge to recover lost sales, maintain momentum and keep growing. Boost sales with Dibs for pre-launch and out-of-stock scenarios. Manage pre order and backorders to enable purchase of coming soon items. Offer partial deposits, book now pay later and automate payment reminders for scheduled collections. Prevent overselling with checkout validation and inventory tracking. Perfect for made to order items, presales and product launches. Replace sold out with a preorder button and coming soon badge to recover lost sales, maintain momentum and keep growing. more Partial & full payment, book now pay later with built-in preorder discounts. Show preorder button on collection, search, home page & featured products. Dashboard to track preorder & backorder performance, order status & sales. Shipping update emails & automated payment reminder notifications with links. Prevent overselling with checkout validation & inventory limits for pre order.

5.0(Reviews)

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About Out of stock Apps for Shopify

Out of stock 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 out of stock 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 out of stock solutions available in the Shopify App Store. Each has been selected based on its functionality, user ratings, and overall value for Shopify merchants.