Previously, we discussed the importance of back-in-stock alerts for Shopify stores and how they help you recover lost sales, keep customers engaged, and maximise revenue. But here’s the thing, alerts are only effective when sent on time. If customers don’t hear from you the moment a product is restocked, they might not return.
That’s why choosing the right back-in-stock app for Shopify is essential.
In this post, we’ve handpicked the 11 best Shopify stock alert apps to ensure your notifications reach customers at the right time.
Here are some of the best Shopify back in stock apps that we are seeing stores use:
STOQ is the best back-in-stock and preorder app for Shopify in this list, helping merchants maximise sales by selling preorders before restocks and sending automatic stock alerts. It allows customers to join a waitlist for out-of-stock items and receive instant notifications when products are available again. With multi-language support, customisation, and 24/7 assistance, Stoq ensures a smooth experience for store owners and shoppers.
Key Features:
Stoq offers a free plan, with paid options starting at $10/month.
Notify Me is a shopify app that helps Shopify merchants to reconnect with customers when products are restocked. The app allows store owners to add a “Notify Me” or “PreOrder” button, along with low-stock FOMO widgets, to out-of-stock product, home, and collection pages to create urgency and drive conversions. It supports B2B and B2C orders, helping merchants to offer discounts, notes, and partial preorder payments.
Key Features:
Notify Me offers a free plan, with paid options starting at $19.90/month.
Timesact is a renowned back-in-stock Shopify app designed to re-engage customers with timely restock notifications. It stands out for its guided onboarding, making setup seamless for merchants. The app also offers complete inventory control, allowing store owners to turn preorders and restocks on or off based on stock levels. With automated alerts and preorder features, Timesact helps businesses maximise sales before replenishing inventory.
Key Features:
Timesact offers a free plan, with paid options starting at $6.65/month.
PreOrder Globo is a back-in-stock app that informs customers when sold-out products are restocked. Beyond just offering a “Notify Me” button, it enables preorders, presales, and backorders, allowing Shopify store owners to collect partial payments in advance. Merchants can also add custom delivery notes like “Delivery in 21-30 days” below the preorder button, helping manage customer expectations while securing sales before restocking.
Key Features:
PreOrder Globo offers a free plan, with paid options starting at $9.90/month.
Appikon is a well-known back-in-stock app that helps Shopify store owners turn sold-out products into future sales. Its waitlist functionality allows shoppers to subscribe for alerts, and once stock is replenished, instant notifications are sent via email, SMS, or push. The app also provides detailed reporting tools, offering insights into customer demand for both new and existing products, helping merchants optimize inventory and increase sales.
Key Features:
Appikon offers a free plan, with paid options starting at $19.99/month.
AMP is a powerful back-in-stock solution for Shopify merchants looking to capture lost sales and re-engage customers. Unlike other apps, it replaces frustrating “out of stock” messages with customisable restock notification buttons, ensuring shoppers can easily subscribe for alerts. Designed to handle high SKU volumes, AMP offers detailed analytics, helping merchants track demand and optimise inventory planning.
Key Features:
AMP is free to install, with paid plans starting at $19/month.
PushOwl, powered by Brevo, is a multi-channel marketing suite that includes back-in-stock notifications alongside email, SMS, and web push alerts. The app allows customers to subscribe for restock notifications through push notifications, ensuring they receive instant updates without relying solely on email. With automation tools, segmentation, and smart pop-ups, it helps merchants recover lost sales and drive customer retention.
Key Features:
PushOwl offers a free plan, with paid options starting at $19/month.
Alert Me is a straightforward and efficient back-in-stock app that helps Shopify merchants automate restock notifications without manual effort. Customers can subscribe to unlimited alerts using simple sign-up forms on product and collection pages. When an item is restocked, the app instantly triggers email and SMS notifications, bringing shoppers back effortlessly. Its Customisable themes and built-in analytics help stores track demand and maximise sales.
Key Features:
Alert Me offers a free plan, with paid options starting at $4.99/month.
Swym is the perfect back-in-stock app for D2C brands willing to invest in advanced features and integrations. It not only notifies customers when products are restocked via email and SMS but also re-engages them through social media. With its AI-powered recommendations, Swym helps drive customer interest even before items are available again.
Key Features:
Swym offers a free plan, with paid options starting at $19.99/month.
ES Back in Stock Notify Me helps Shopify merchants win back lost sales with automated restock alerts via email and SMS. With a one-click setup, it automatically enables an “Email Me” button on product pages, allowing customers to subscribe for notifications when an item is available again. The app also offers customisable email templates to match your store’s branding and multi-language support to engage a global audience.
Key Features:
ES Back in Stock offers a free plan, with paid options starting at $5.99/month.
SC is an effective back-in-stock Shopify app that helps Shopify merchants convert stockouts into sales opportunities. It offers batch notifications, allowing merchants to control how many customers are notified immediately, preventing inventory from selling out too quickly. Its multi-language support and deep integrations provide an improved experience for store owners and shoppers.
Key Features:
SC Back in Stock offers a free plan, with paid options starting at $10/month.
Not all back-in-stock apps in this list are created equal. While many offer basic restock alerts, only a few truly help merchants maximise sales. Some lack customisation, others fall short on automation, and many fail to integrate seamlessly with Shopify’s essential tools. That’s where STOQ stands out. As a top-rated solution, it goes beyond simple notifications, allowing you to easily capture preorders, collect partial payments, and efficiently manage restocks.