Best Stock alerts Shopify apps in 2026 [Updated]
PickYourApp Review Team
6 min read
•
Oct 10, 2025
The Best Shopify stock alert apps help merchants manage inventory effectively while maximizing sales opportunities. From low stock counters and product labels that create urgency to back-in-stock notifications and preorder systems, these tools ensure you never miss a sale due to inventory issues. Whether you need automated stock level badges, waitlist management for out-of-stock items, or preorder capabilities with partial payments, these apps provide essential features to keep customers informed and engaged throughout their shopping journey.
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#1. Notify Customers with Restock Alert when items are back in stock & make out-of-stock waitlist
Never miss a sale with Kbite's comprehensive back in stock notification system. When items are out of stock, customers can click the "Notify Me" button to join the waitlist and receive automatic restock alerts via email or SMS. Track product demand through detailed waitlist analytics and grow your marketing list simultaneously. The app also sends price drop notifications to alert customers about sales. Customize notification templates, button appearance, and automated messages to match your brand. Perfect for managing out-of-stock products, recovering potential sales, and keeping customers informed when items become available again. Seamlessly integrate customer data with your email marketing for better engagement and increased sales conversion.Install from Shopify App Store
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#2. Sell preorder & backorders with partial payments. Send Back in stock alerts on restock to waitlists!
STOQ helps you manage out-of-stock products with two key features: preorders and back-in-stock notifications. Set up preorder buttons to accept deposits or partial payments for upcoming inventory, or create waitlists with "Notify Me" buttons for restocks. When items return to stock, automatic email and SMS alerts go out to interested customers. The app works across multiple store locations and markets, syncs with Klaviyo for email marketing, and provides detailed analytics. Customize button designs, alert messages, and payment options to match your brand. Get 24/7 support to help maximize preorder revenue and turn out-of-stock disappointments into future sales. Perfect for presales, backorders, and building customer waitlists while growing your mailing list.Install from Shopify App Store
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#3. Capture Presales & Build Waitlists with Pre orders, Restock Alerts & Back in Stock Notifications
Build excitement for new product launches with Timesact's preorder system and never lose sales on out-of-stock items. Create waitlists that automatically notify customers when products are back in stock. Convert sold-out items into preorder opportunities with customizable buttons and badges on your product pages. Manage presales effectively with partial payment options, automatic discounts, and order limits. Keep customers informed through automated emails about preorders and restocks. Set shipping dates and add countdown timers to drive urgency. The app includes inventory control features to automatically enable or disable preorder options based on stock levels. Get started quickly with guided video onboarding and ongoing support via email and chat.Install from Shopify App Store
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#4. Grow sales with pre-order, backorder. Add out of stock waitlists with 'notify me' & restock alerts.
Never miss a sale opportunity with this easy-to-use pre-order and back in stock management app. Set up pre-orders to capture sales even when products are temporarily out of stock, and create waitlists with a simple "Notify Me" button for sold-out items. The app automatically sends restock alerts to interested customers when products become available again. Working at the variant level, you can manage backorders, presales, and stock notifications for specific product options. Get started in minutes with help from our 24/7 live chat support team who are ready to assist you every step of the way.Install from Shopify App Store
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#5. Widget for urgency & scarcity showing stock level, low stock, left stock & countdown on your store.
Display real-time stock levels and create urgency with this intuitive inventory counter widget. Show remaining stock quantities, low stock alerts, and countdown timers directly on your product pages. The widget automatically adjusts to display stock status - from "in stock" to "limited stock" to "sold out" - based on your custom threshold settings. Add pulse animations to stock counters and customize inventory displays for individual products or entire collections. Whether you need to show high stock levels or alert customers when items are running low, this counter helps encourage purchase decisions by displaying accurate, dynamic stock information. Perfect for highlighting limited availability and managing customer expectations about product inventory. The widget works seamlessly across your store, letting you set different display rules for various stock levels while maintaining a consistent look and feel throughout the shopping experience.Install from Shopify App Store
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#6. Notify Customers with back in stock alert when items are restock & make out-of-stock waitlist
Never miss a sales opportunity with REZ Notify Me, a complete back-in-stock alert solution for your Shopify store. When items are out of stock, display a customizable "Notify Me" button that lets customers join your product waitlist. The app automatically sends restock notifications via email when products become available again. Track customer demand through detailed product analytics while building your mailing list. With fully customizable notification templates and alert emails, you can keep shoppers engaged and informed about the items they want. Send up to 1,000 email notifications monthly and get support from our dedicated team via live chat or email whenever you need help.Install from Shopify App Store
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#7. Rush customers to buy with live countdown stock counter that shows your product remaining inventory
Drive sales with a live stock counter that displays real-time product inventory levels to your customers. This customizable low stock countdown creates urgency by showing "only X left" alerts for specific products, encouraging faster purchase decisions. The inventory alert system includes preset designs for major shopping seasons like Black Friday, Halloween, and Christmas. Show scarcity through accurate stock levels synced with popular shipping platforms including ShipStation, Shippo, and ShipRocket. Perfect for creating social proof while displaying limited availability, this counter helps convert browsing visitors into buyers by highlighting remaining inventory in an engaging way.Install from Shopify App Store
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#8. Display "Stock Counter" widget on the products page to give the product a greater sense of urgency.
Show real-time stock levels on your product pages with the Stock Counter widget, designed for Shopify 2.0 stores. This practical tool displays inventory counts based on your product quantities or variants, helping create natural urgency in your online store. Set up custom rules to show stock levels within specific minimum and maximum ranges, giving shoppers clear visibility of product availability. You can easily turn the counter on or off as needed, making it simple to manage your inventory display. The stock counter helps build customer trust by showing transparent inventory information while encouraging timely purchase decisions.Install from Shopify App Store
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#9. Get notified when you're low in stock, saving time and lost sales!
Never miss a restock opportunity with Stockie Low Stock Alert, your automated inventory tracking solution. Set custom low stock thresholds and receive timely notifications before products run out. Whether you need instant alerts or scheduled updates, this app keeps you and your team informed about inventory levels across different locations. Create specific alerts for individual variants, entire product collections, or location-based stock monitoring. With flexible CSV alert options and multi-recipient notifications, you can maintain optimal inventory levels and prevent lost sales. Stay ahead of stock shortages by getting alerts exactly when and where you need them, ensuring your products are always available for customers.Install from Shopify App Store
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#10. Notify Me! for back in stock alert, backorder, out of stock waiting list, low stock alert & wishlist
Never miss a sale with Notify Me! Add "Notify Me," "PreOrder," or "Wishlist" buttons to your out-of-stock products. Customers can join waiting lists and receive automatic restock alerts through email, SMS, or push notifications. Handle both D2C and B2B pre-orders with custom options like discounts and partial payments. Create urgency with "only X left" counters and manage inventory with low stock alerts. The wishlist feature helps shoppers save items for later purchase, improving return visits. Works seamlessly with your existing tools for back-order management and includes multilingual support. Get dedicated customer support via chat, phone, or email to help set up your back-in-stock notification system.Install from Shopify App Store