6 Best Shopify Stock Alert Apps in 2026

Stockouts are a frustrating reality for Shopify merchants of all sizes. Whether you’re running flash sales or managing a wide, dynamic inventory, items go out of stock—and every unavailable product risks both lost revenue and disappointed customers. That’s where stock alert apps come in. These solutions help merchants recapture sales by automatically notifying shoppers when products are back in stock, and often add robust features like preorders, wishlists, price drop alerts, and multi-channel notifications. But with so many options in the Shopify App Store, how do you pick the best Shopify stock alert app for your store?

When evaluating a stock alert app, it’s crucial to look beyond basic back in stock emails. Compare the range of notification channels offered (email, SMS, push, WhatsApp), how well the app integrates with your existing marketing stack, language support for your customer base, and the flexibility of its pricing plans. Consider whether you need advanced features like wishlists, low stock notifications, or preorders, and weigh how each solution fits your workflow as your store grows. You’ll also want to factor in trust signals like years on the market, review volume, and Built for Shopify status to ensure reliability and scalability.

Our verdict: SC Back in Stock Notify Me is our top pick for 2026. With comprehensive alert options, powerful integrations, support for 30 languages, and flexible pricing from free to advanced tiers, it’s an ideal solution for scaling Shopify stores seeking to maximize recaptured sales and customer satisfaction.

SC Back in Stock Notify Me

SC Back in Stock Notify Me by Shop Circle is a feature-rich app designed to help Shopify merchants recover missed sales opportunities by notifying customers when out-of-stock items are available again. The app streamlines the process of alerting shoppers through automated email and SMS notifications and supports a wide variety of use cases including price drop notifications, low stock warnings, and advanced inventory controls. With strong integration options, extensive language support, and a scalable pricing structure, SC Back in Stock Notify Me is built to serve both small shops and established brands aiming to optimize inventory-driven revenue.

Key Capabilities

• Comprehensive Alerts: Merchants can set up Back in Stock Alerts, Restock Alerts, Out of Stock Alerts, and Price Drop Notifications to keep customers engaged throughout the buying journey.
• Multi-Channel Notifications: The app supports Email and SMS notifications, allowing merchants to reach customers through their preferred channel. Batch notifications and manual alerts add flexibility for handling special cases or large waitlists.
• Customization: Alert templates can be fully customized to match your brand’s tone and design, ensuring consistent messaging across communications.
• Waitlists and Inventory Tools: Merchants can create waitlists for out-of-stock products, manage inventory across multiple locations, and set low stock warnings to prompt proactive reordering or customer notifications.
• Analytics & Reports: Detailed reporting helps merchants track notification performance and optimize their stock alert strategies for maximum conversion.
• Integrations: Direct connections with Shopify Admin, Klaviyo, Mailchimp, Dotmailer, and Transcy streamline marketing list growth and enable advanced segmentation for follow-up campaigns.
• Bulk Management Features: Bulk export tools make it easy to handle large product catalogs or export notification data for further analysis.
• Real-Time Alerts: Immediate notifications are triggered as soon as products are restocked, minimizing the window of lost sales.

Pricing Breakdown

• Free to install: Includes 50 email alerts per month, unlimited back in stock requests, automatic notifications, bulk export, and integrations—ideal for small or new stores just starting with stock alerts.
• Email Only ($10/month): Enables unlimited email alerts, batch notifications, multi-location support, inventory controls, and syncing with Klaviyo and Mailchimp—perfect for merchants prioritizing email-based campaigns.
• Starter ($20/month): Adds up to 200 SMS notifications and analytics, with automatic refill options for SMS tokens and detailed reporting. Merchants focused on SMS engagement or needing more robust analytics will find value here.
• Pro ($45/month): Offers unlimited email alerts, 500 SMS notifications, custom email address sending, and advanced SMS features. This tier is designed for larger stores or brands that need scalable, multi-channel communication at higher volumes.

Pros & Cons

• Pros: Wide notification channel support (email and SMS), robust integration options, 30 supported languages, flexible pricing including a generous free plan, advanced inventory and analytics features, and full customization capabilities.
• Cons: Although the review volume is solid (157 reviews), some competitors have higher review counts or more recent launch dates, which may be relevant for those seeking the very latest interface or feature approaches.

Verdict: SC Back in Stock Notify Me is an all-in-one stock alert solution ideal for merchants of any size who require advanced notification options, deep integrations, broad language support, and the flexibility to scale as their store grows.

Preorder, Back in stock Duck

Preorder, Back in stock Duck by Peppyduck Ventures LLP supports presales, backorders, and notify-me restock waitlists, combining essential stock alert functionality with strong preorder management. The app caters to merchants who want to capture sales even before products are physically available and provides a robust suite of notifications to keep customers engaged throughout the product lifecycle.

Key Capabilities

• Preorder & Backorder Management: Merchants can accept unlimited preorders and backorders with zero transaction fees at all paid tiers, helping drive sales even when inventory is low or unavailable.
• Comprehensive Notification Suite: Offers back in stock alerts, customizable “notify me” buttons and signup forms, automatic alerts, and variant-specific notifications to reach customers with targeted updates.
• Integrations: The app connects with Checkout, Shopify Admin, Automated email alerts, Cart/Checkout integrated, Email from your domain, Klaviyo integrated, and WhatsApp business integration, providing flexibility for omnichannel marketing and communication.
• Support: 24/7 live human chat support is available across all plans, offering immediate help to merchants at any time.

Pricing Breakdown

• FREE: Unlimited preorders, 50 back in stock emails per month, customizable buttons and forms, and unlimited notify-me signups. Designed for merchants starting out or running smaller catalogs.
• ESSENTIALS ($9/month): 500 back in stock emails per month, all features included, and support for growing Shopify and Klaviyo mailing lists. Includes inventory locations, markets, and language support for more complex setups.
• PRO ($29/month): 3,000 back in stock emails per month, all integrations (including WhatsApp and API), and advanced WhatsApp alerts with branding.
• ELITE ($89/month): Unlimited preorders and back in stock alerts, a dedicated Customer Success Manager, and all features/integrations for larger or high-growth brands.

Pros & Cons

• Pros: Unlimited preorders and notify-me signups at every tier, robust integration set (including WhatsApp), and always-on live chat support. The highest app rating (5.0) and strong review volume (480) for a recently launched app demonstrate rapid market adoption.
• Cons: Only supports English, which may limit usability for international merchants. Merchants requiring multi-language support will need to look elsewhere.

Verdict: Preorder, Back in stock Duck is well suited for merchants focused on presales and early access sales, especially those looking for WhatsApp integration or live support, but may not fit stores serving a global, multi-language audience.

Notify Me! Back in Stock Alert

Notify Me! Back in Stock Alert by Notify Me! is an “all-in-one” solution that combines waitlists, preorders, wishlists, and low stock alerts in a single app. Its flexible approach enables merchants to manage inventory-driven sales, promote out-of-stock items, and keep customers engaged even when products are temporarily unavailable. Boasting the highest review count among stock alert apps, Notify Me! demonstrates broad merchant adoption.

Key Capabilities

• Multi-Functionality: The app supports waitlists, preorders, wishlists, and low stock alerts, simplifying the tech stack for merchants who need a comprehensive approach to inventory-driven engagement.
• Automated Alerts on Multiple Channels: Merchants can set up email, push, and SMS alerts, ensuring customers stay informed through their preferred method of contact.
• Customization: Widgets and emails can be fully customized to match store branding, and the app automatically matches widgets to your theme for a seamless look and feel.
• Integration Suite: Integrates with Checkout, Customer accounts, Shopify POS, Klaviyo, Mailchimp, Omnisend, PageFly, PushOwl, and Sidekick, covering a wide range of marketing and sales tools.
• Wishlist & Preorder Actions: Powerful wishlist and preorder features help merchants capture demand and fulfill orders as soon as stock arrives.

Pricing Breakdown

• Lite: Free tier with 10 restock notifications, 5 preorders, 50 wishlist actions, and access to email, push, and SMS alerts.
• Kickstart ($9.90/month): 500 preorders (no transaction fee), 500 alerts, 2,000 wishlist actions, and advanced customization options.
• Starter ($19.90/month): Adds fundamental reports, more customization, and notifications for low stock. Includes advanced integration with page builders.
• Standard ($39.90/month): 1,500 alerts, 10,000 wishlist actions, 1,500 preorders, and priority support. Unlimited plans are also available within the app.

Pros & Cons

• Pros: Broadest set of customer engagement features (waitlists, wishlists, preorders, low stock), support for 13 languages, and the highest review volume (3,585) among its peers. Deep integration options support complex marketing needs.
• Cons: The free plan is limited to 10 restock notifications and 5 preorders, which may not be sufficient for stores with higher demand.

Verdict: Notify Me! Back in Stock Alert is ideal for established merchants seeking a single solution for multiple inventory engagement needs, particularly if they require deep integration with marketing and POS tools.

Amp Back in Stock & Preorder +

Amp Back in Stock & Preorder + by HEL SG PTE LTD provides a robust set of features for managing back-in-stock alerts, preorders, wishlists, and low stock badges. With over a decade on the Shopify App Store, it is a mature option trusted by many merchants for its reliable delivery of notifications and rich support for preorders and wishlists.

Key Capabilities

• Comprehensive Alerts: Offers instant restock alerts via email, SMS, and push notifications, helping merchants recapture buyers as soon as inventory is replenished.
• Preorders & Wishlists: Unlimited preorders and wishlists at higher tiers enable merchants to generate demand and fulfill orders efficiently.
• Customizable Widgets: Notify Me buttons, forms, and low stock badges can be tailored to fit the brand, and support multi-language use.
• Integrations: Connects with Shopify Flow, Shopify Admin, Flow, Klaviyo, MailChimp, and Zapier, supporting automation and advanced marketing workflows.
• Reporting & Analytics: Activity reports and multi-language support provide insights into customer engagement and help merchants optimize their strategies.

Pricing Breakdown

• Free: 10 notifications/month, unlimited registrations, wishlists, and low stock badges. Designed for stores with minimal notification needs.
• Starter ($19/month): 500 notifications/month, unlimited preorders, SMS notifications, and advanced customization.
• Growth ($49/month): 2,000 notifications, unlimited preorders, Klaviyo & Mailchimp integration, and delivery window customization.
• Pro ($99/month): Unlimited notifications, API/webhooks, and all features/integrations for high-volume merchants.

Pros & Cons

• Pros: Long track record (since 2011), reliable support for preorders and wishlists, and advanced integration capabilities. Activity reports and customizable widgets add value for merchants who need granular control.
• Cons: Only supports English, which may limit its appeal for non-English-speaking customers or global brands.

Verdict: Amp Back in Stock & Preorder + is a strong choice for established merchants who need a proven, flexible app to manage back in stock, preorders, and wishlists, especially if their operations are primarily English-speaking.

Notify Me, Back in Stock: CW

Notify Me, Back in Stock: CW by CWILL emphasizes customizable back in stock alerts, supporting both email and SMS notifications to help merchants capture lost sales. It’s a solid option for those needing basic to intermediate notification handling with some advanced features at higher tiers.

Key Capabilities

• Customizable Alerts: Merchants can create inline and floating buttons for back in stock signups, and use product-specific button displays to target customer intent.
• Multi-Channel Notifications: Supports both email and SMS, with auto multi-language translation at higher tiers for broader global reach.
• Integration Support: Connects with Shopify Admin, Ecomposer, gempage, Klaviyo, and MailChimp to facilitate marketing and communication workflows.
• Automation Tools: Custom notification rules and automatic translation features help merchants tailor the alert experience to different audiences and product types.

Pricing Breakdown

• Free: 10 notifications per month, unlimited subscriber sign-ups, and 24/7 live chat support.
• Starter ($9.90/month): 50 notifications per month, all integrations supported, product-specific button display, and lower introductory pricing.
• Growth ($29/month): 3,000 notifications per month, custom notification rules, SMS notifications, floating pop-up widgets, and auto multi-language translation.

Pros & Cons

• Pros: Good integration support, customizable sign-up options, and multi-language capabilities at higher tiers. Reasonable review count (588) and strong support channels.
• Cons: Free plan is quite limited and only supports a small volume of notifications; multi-language support is not available on the lower tier.

Verdict: Notify Me, Back in Stock: CW is best for merchants with moderate notification needs who want customization and integration flexibility, especially those looking to support multiple languages at higher usage levels.

PreOrder Now Back in Stock WOD

PreOrder Now Back in Stock WOD by Website on Demand Studio, LLC provides a focused solution for capturing sales through preorders and back in stock alerts. The app is tailored to help merchants convert interest into revenue even when inventory is not immediately available and offers features to manage preorder products across various Shopify plan levels.

Key Capabilities

• Preorder Management: Merchants can publish and manage unlimited preorder products at paid tiers, including support for flexible partial payments and preorder discounts to drive early sales.
• Automatic Notifications: Shipping update emails are automatically sent when preorder status changes, keeping customers informed and reducing support needs.
• Integration Suite: Connects with Shopify Admin, Google Analytics, In Cart Upsell, Pagefly, Product Customizer, and Trackify X for enhanced marketing and analytics.
• Flexible Support: Dedicated success manager and live support (chat & email) are available on higher Shopify plans, ensuring merchants get the help they need as they grow.

Pricing Breakdown

• Free Plan: 1 free preorder product, dynamic mixed cart alerts, and fast email support for stores testing out preorder strategies.
• Shopify Basic ($19.95/month): Unlimited preorder products, preorder discounts, partial payments, and live support for Shopify Basic stores.
• Shopify Grow ($39.95/month): Unlimited preorder products and all features for Shopify Grow/Standard stores.
• Shopify Advanced ($59.95/month): Unlimited preorder products, all features, and dedicated success manager support for Shopify Advanced stores.

Pros & Cons

• Pros: Strong preorder management features, automatic shipping updates, and advanced integration options. A substantial review count (981) and years of service (since 2017) reinforce its reliability.
• Cons: Only supports English, and the free plan is very limited in scope, allowing just one preorder product.

Verdict: PreOrder Now Back in Stock WOD is best suited for merchants focused primarily on preorders and requiring advanced Shopify plan support, especially those who want built-in analytics and flexible payment options.

Buyer's Guide: How to Choose the Best Shopify Stock Alert App

1. Notification Channel Coverage

Choose an app that supports the notification channels your customers prefer. While all leading apps offer email alerts, SMS and push notifications are essential for stores with mobile-first shoppers or international clients. If you require WhatsApp or other specific channels, be sure your shortlisted app offers direct integration.

2. Language and Localization Support

For merchants selling internationally, language support is crucial. SC Back in Stock Notify Me stands out with support for 30 languages, making it highly accessible for global brands. Many alternatives only support English or a handful of languages, which can limit engagement with non-English-speaking customers.

3. Integration with Marketing and Workflow Tools

Look for apps that integrate seamlessly with your existing marketing stack, such as Klaviyo, Mailchimp, Shopify Admin, and page builders. These integrations enable automated list building, targeted follow-ups, and improved workflow efficiency. Apps with broader integration options allow you to centralize customer data and drive repeat sales more effectively.

4. Pricing, Scalability, and Feature Flexibility

Evaluate how each app’s pricing aligns with your expected usage and growth plans. Some apps offer generous free tiers for small stores, but may become costly as you scale. Consider whether paid plans unlock valuable features such as SMS alerts, analytics, custom branding, advanced integrations, or dedicated support. The ideal app offers a scalable pricing ladder, with transparent inclusions at each level to prevent surprises as your store grows.

Final Recommendation

Choosing the right stock alert app depends on your store’s unique needs, customer base, and growth ambitions. If you operate a global store with multilingual requirements, advanced notification channels (including SMS), and deep marketing integrations, SC Back in Stock Notify Me is the clear choice thanks to its unmatched language support, flexible pricing, and comprehensive feature set. For stores focused on presales and WhatsApp engagement, Preorder, Back in stock Duck is a compelling option, while Notify Me! Back in Stock Alert is best for those seeking an all-in-one engagement platform with waitlists, wishlists, and preorders.

Ultimately, merchants who want a reliable, flexible, and highly customizable stock alert system that can scale with their business will find the best fit with SC Back in Stock Notify Me. Its blend of notification capabilities, integration depth, and global reach make it the top recommendation for most Shopify stores in 2026.

Install SC Back in Stock Notify Me from the Shopify App Store