16 Best Back in stock alert Shopify Apps in 2025

ShopPop: WhatsApp & SMS alerts

Win back customers using timely and relevant notifications on WhatsApp, SMS & Messenger

⭐️ 5.0 (14 reviews) Free plan available. 14-day free trial. Additional charges may apply.

🔍 Overview of features

ShopPop is an app that helps merchants drive more sales by utilizing WhatsApp and SMS marketing automation. With ShopPop, merchants can send timely and relevant notifications to customers on WhatsApp, SMS, and Messenger.

One of the key features of ShopPop is the ability to collect 1st party opt-ins throughout the customer journey using custom widgets. This allows merchants to build a list of interested customers and send automated product notifications such as back-in-stock alerts or new collection drops. Additionally, merchants can send promotional notifications for sales and exclusive alerts to further drive sales.

By using ShopPop, merchants can watch their revenue grow automatically through the ShopPop dashboard. The app also provides the ability to track revenue growth and leverage the data collected for future marketing campaigns.

Overall, ShopPop is a powerful tool for merchants looking to increase sales by engaging customers through WhatsApp and SMS marketing automation.

💬 What merchants say

Merchants who have used ShopPop highlight its various features and the positive results they have seen. They mention using the back in stock and button to drawer functionalities, as well as the pop-up and back in stock alerts. These features have helped them achieve great results in terms of conversions and they express their satisfaction with the app. Overall, merchants are pleased with ShopPop and the impact it has had on their business.
Notify Me! Restock & PreOrder

Create pre-order and presale waiting list campaigns and send automatic back in stock notifications

⭐️ 4.9 (718 reviews) Free plan available. 7-day free trial. Additional charges may apply.

🔍 Overview of features

This app allows merchants to create waiting lists and recover lost sales by sending automatic back-in-stock notifications. It offers a quick and easy installation process, allowing merchants to get started in minutes. By adding the "Notify me" widget on product, home, and collection pages, merchants can create demand for their out-of-stock products.

The app provides out-of-the-box setup with a user-friendly, no-code interface, making it easy to send automatic notifications via email, SMS, and push notifications. Merchants have the ability to customize everything and receive AI suggestions to optimize their notifications. The app also offers a 24/7 success team that provides support and reports on lost sales and revenue recovered with reminders to convert.

Additional features of the app include automatic restock notifications and reminders, the ability to match with any theme based on AI, integration with other marketing tools to create workflows, and support for multi-location inventory, multilingual settings, email domain setup, resending notifications, and more.

Overall, this app helps merchants increase revenue by capitalizing on out-of-stock products and engaging customers through personalized notifications.

💬 What merchants say

The majority of merchants have positive feedback about the Notify Back in Stock app. They highlight the excellent customer service, quick response times, and helpful support provided by the team. Merchants appreciate that the app allows customization to match the look and feel of their website. The ease of use and navigation of the app's back end is also praised. Users like the option to make customer subscriptions via SMS instead of it being mandatory. Overall, merchants are pleased with the app and highly recommend it.

However, one merchant cautions others and advises exercising caution when choosing this app. They mention that the app has altered included features without notification. Specifically, with the free plan, the merchant mentions that they cannot see who has requested a 'back in stock' alert as the email details are blurred. They consider this to be an extreme measure of concealing information collected from their website. Despite these concerns, the merchant still rates the app 3 stars due to its chat support and user-friendly interface.

In summary, the Notify Back in Stock app is highly regarded by merchants for its excellent customer service, customization options, ease of use, and the ability to make customer subscriptions via SMS. However, one merchant advises caution due to concerns about altered features and concealing collected information. Overall, the app is seen as a reliable and affordable solution for managing and tracking customer demand for out-of-stock products.
ZeroOut

Drive sales by focusing your customer's attention on products that convert.

⭐️ 4.8 (61 reviews) From $9/month. 3-day free trial.

🔍 Overview of features

ZeroOut is an app that can help merchants drive sales by focusing their customer's attention on products that are available for purchase. The app allows merchants to hide out-of-stock products from their storefront, ensuring that customers only see products that they can actually buy. This helps to prevent customer frustration and wasted attention on products that are not available.

Additionally, ZeroOut provides a feature to collect back-in-stock emails on items that are temporarily out of stock. This allows merchants to notify interested customers when the product is back in stock, increasing the chances of a sale and reducing the need for customers to constantly check for product availability.

Furthermore, ZeroOut offers low-stock alerts, which notify merchants when their inventory is running low. This enables merchants to replenish their inventory in a timely manner without interrupting sales.

By using ZeroOut, merchants can build a concise and focused product catalog that maximizes customer attention and increases the likelihood of sales.

💬 What merchants say

Based on the provided user reviews, individual users highlight the app's ability to automate the management of out-of-stock products, which saves them time and effort. One user specifically mentioned that the app helped improve the usability of their business by solving the problem of managing inventory for unique items that sell in large quantities daily. However, one user expressed dissatisfaction with their experience, stating that there was no free trial, they were charged immediately, and the app did not meet their expectations. They also mentioned that their support tickets were not addressed.

In summary, the app is generally recommended by merchants for its effectiveness in automating the management of out-of-stock products. It is praised for its ability to solve the challenge of managing inventory for businesses that sell unique items in large quantities. However, there is one negative review mentioning a lack of a free trial, unsatisfactory performance, and unaddressed support tickets.
POWR | Appointment Booking App

Schedule appointments, bookings, events, service calls, and more with the POWR Calendar Booking App.

⭐️ 4.6 (3 reviews) Free plan available

🔍 Overview of features

The POWR Appointment Booking app offers automated scheduling seamlessly integrated with any Shopify store. It is a user-friendly app that does not require technical knowledge to use. It is similar to Calendly but is fully integrated with Shopify and can be automatically added to your Google or Outlook calendar.

One of the key features of the app is the ability to add multiple questions to the booking form, allowing merchants to gather all the necessary information before the appointment. This helps streamline the booking process and ensures that merchants have all the information they need to provide a personalized experience for their customers.

The app also offers other useful features such as sending automated email alerts when a new meeting is booked and using an autoresponder to let the customer know the booking was successful. Merchants can also custom design all calendar elements to match their brand, giving a professional and cohesive look to their booking process.

Overall, the POWR Appointment Booking app is ideal for businesses that need to schedule appointments, call bookings, events, service calls, and more. Its seamless integration with Shopify and customizable features make it a valuable tool for merchants looking to grow their business by providing a smooth and efficient booking experience for their customers.

💬 What merchants say

Based on the provided user reviews, individual merchants highlight different aspects of the app. One merchant appreciates the intuitive user interface and the responsive customer support that resolved their issue quickly. They are happy with the app's features and plan to use POWR products in the future, recommending it to others. On the other hand, another merchant has a negative experience with the app. They criticize how it forces users to create an account on the POWR website without confirmation or notice and express concerns about data privacy and collection practices. They also mention that the app does not work with Shopify's built-in email list. Overall, merchants highlight the user-friendly interface, responsive customer support, and the app's ability to encourage customers to visit their site. However, there are concerns about the app's data collection practices and the requirement to create an account on the POWR website.
WAITLISTED Sold Out & Preorder

Notify customers when inventory changes effortlessly. Free up time to focus on other tasks.

⭐️ 4.5 (2 reviews) Price: Free
Quick Stock Notifier ‑ Instock

Customer can easily be notified when the product back in stock.

⭐️ 4.0 (4 reviews) From $8/month. 3-day free trial.

🔍 Overview of features

The Back in Stock Notifications app is a valuable tool for merchants looking to grow their business by keeping their customers informed and engaged. With this app, customers can easily sign up to be notified when a product is back in stock, ensuring that they don't miss out on their desired items.

Merchants can take advantage of this app by sending notifications to customers when a product is back in stock. This not only helps to improve customer satisfaction and loyalty, but also increases the likelihood of making a sale. By keeping customers informed and engaged, merchants can boost their sales and revenue.

The app offers various notification types, including email and SMS notifications, giving merchants the flexibility to choose the most effective communication channel for their customers. This personalized approach helps to enhance the customer experience, increasing the chances of repeat purchases and word-of-mouth recommendations.

Overall, the Back in Stock Notifications app provides an easy and effective way for merchants to notify customers when products are back in stock, leading to improved customer satisfaction, increased sales, and ultimately, business growth.

💬 What merchants say

Individual users highlight that the app had some initial glitches, but the developers were quick to resolve them. They appreciate the ease of installation and the ability to customize the stock notification dialog to match their website theme. Users also like that there is no limit on the number of messages they can send. However, one user mentions that they experienced a problem where potential customers disappeared from their database and the customer service was unresponsive and slow to address the issue. Despite this, another user highly recommends the app, stating that they have tried other similar apps but none of them offered the same level of functionality and support. They appreciate the quick notification delivery and the helpfulness of the app's team.

Overall, the app seems to have some initial glitches but the developers are responsive and quick to resolve issues. Users appreciate the customization options and the lack of message limits. However, there are some concerns about potential data loss and unresponsive customer service. Despite this, many users have had positive experiences with the app and recommend it for its functionality and support.
Back In Stock via Messenger

⭐️ 1.6 (6 reviews) Free plan available

🔍 Overview of features

The most important features of this app are:

1. Sales recovery tracking: The app allows merchants to know the amount of sales they have recovered through its features. This helps them understand the effectiveness of the app in recovering lost sales and maximizing revenue.

2. Customer funnel analysis: Merchants can gain insights into the entire customer journey and understand the actions customers take at each stage. This helps them identify any bottlenecks or areas for improvement in their sales process.

3. Comprehensive activity details: The app provides a detailed view of recent customer activity, allowing merchants to see specific actions taken by customers. This information can be used to personalize marketing campaigns and improve customer engagement.

4. Customizable "Send to Messenger" button: Merchants can customize the size of the "Send to Messenger" button, providing a seamless and attractive user experience for customers.

Overall, this app helps merchants grow their business by recovering lost sales, optimizing their sales process, and improving customer engagement through personalized marketing campaigns.

💬 What merchants say

Based on the user reviews, individual merchants highlight several issues with this app. One merchant mentioned that the app stopped working and the support team was unhelpful in providing a fix. Another merchant mentioned that the app caused a redirect loop and displayed errors on their website, leading them to disable it. A different merchant reported that the app only works for products where all variants are sold out and does not work for out-of-stock variants. Additionally, there were complaints about the lack of support from the developers, with one merchant stating that they had not received a reply to their message.

Overall, the app seems to have several technical issues and lacks reliable support. Merchants express frustration with the app not functioning correctly and the unresponsiveness of the support team. These issues have led some merchants to disable the app or consider alternative options.
Restock Notifior

Stay on Top of Product Availability with Real-Time Push Notifications for Web and Mobile

⭐️ 0.0 (0 reviews) Free plan available

🔍 Overview of features

Back In Stock Restock Notifior is a powerful Shopify app that helps merchants engage customers and drive sales through real-time push notifications. The app seamlessly delivers notifications to both web browsers and mobile devices, ensuring that merchants can stay connected with their customers no matter how they are browsing.

The most important features of Back In Stock Restock Notifior include:

1. Automated push notifications: The app sends push notifications to customers when a product they were interested in is back in stock. This helps to increase conversions and customer satisfaction.

2. Seamless Mobile and web integration: The app works on both web browsers and mobile devices, allowing merchants to reach customers on any platform.

3. Customizable notification preferences: Merchants can customize the content and timing of the push notifications to suit their branding and customer preferences.

4. Simple setup and user-friendly interface: The app is easy to set up and use, making it accessible to merchants of all technical skill levels.

5. Monitor conversions and recent notifications: Merchants can track the effectiveness of the push notifications by monitoring conversions and reviewing recent notifications.

By utilizing Back In Stock Restock Notifior, merchants can improve customer engagement, drive sales, and stay on top of product availability.
ReserveMe ‑ Preorder Manager

PreOrder product & notify customers when product get in stock

⭐️ 0.0 (0 reviews) $5/month. 7-day free trial.

🔍 Overview of features

The PreOrder app is a valuable tool for merchants who want to increase sales and prevent losing customers due to out-of-stock products. The app allows merchants to convert the cart button into a preorder button when a product is out of stock, enabling customers to still place an order for the item. This feature helps to capture potential sales that would have otherwise been lost.

The app also provides a user-friendly interface for both the admin and customers, making it easy to manage and place preorders. Admins have the ability to enable or disable the preorder option for each product, as well as set preorder button and notify me settings. They can also limit the number of preorders customers can place.

Additionally, the app includes a NotifyMe feature that allows customers to sign up for email notifications when a product is back in stock. This helps to keep customers engaged and informed, increasing the likelihood of a purchase once the item is available again.

Overall, the PreOrder app is a valuable tool for any merchant looking to optimize their sales and customer experience by offering preorders and notifying customers when products are back in stock.
WhatsApp Back in Stock & More

We notify potential customers when a subscribed product is back in stock after it was sold out.

⭐️ 0.0 (0 reviews) Free plan available. 14-day free trial. Additional charges may apply.

🔍 Overview of features

The WhatsApp Back in Stock & More app is a powerful tool that can help merchants grow their business by notifying potential customers when a previously sold out product is back in stock. By adding a "Notify me" button on the product page, customers can easily subscribe to receive notifications when the product becomes available again.

One of the key features of this app is the ability to subscribe to products via various channels such as WhatsApp, Email, Telegram, and SMS. This allows merchants to reach customers through their preferred communication method and ensures that they don't miss out on an opportunity to make a purchase.

Additionally, the app offers a double-opt-in feature to ensure GDPR compliance and data safety. This provides peace of mind for both merchants and customers, knowing that their personal information is protected.

Overall, the WhatsApp Back in Stock & More app provides a seamless and efficient way for merchants to keep customers informed about product availability, which can lead to increased sales and customer satisfaction.
Notify Me! Restocked Inventory

Create waiting lists and recover lost sales via automatic back in stock notifications.

⭐️ 0.0 (0 reviews) Free plan available

🔍 Overview of features

This app allows merchants to create waiting lists and recover lost sales by sending automatic back-in-stock notifications to customers. Merchants can install the app and set it up in minutes, joining other merchants who are already making revenue from out-of-stock products.

The app provides a "Notify me" widget that can be added to the product page, creating demand and allowing customers to sign up for automatic notifications. The notifications are sent via email and can be customized in terms of message, design, and frequency.

In addition to back-in-stock notifications, the app also allows customers to pre-order products that are currently out of stock. Merchants can access reports on performance and product impressions, providing valuable insights into customer behavior and demand.

The app features a simple and intuitive interface for customers to sign up for alerts, making it easy for them to stay informed about product availability. Overall, this app can help merchants grow their business by ensuring that they don't miss out on potential sales due to out-of-stock products, and by providing valuable data and insights to optimize their inventory management and marketing strategies.
Mint Restock Alerts

Don't lose potential sales. Have Notify Me button shown on out of stock product pages.

⭐️ 0.0 (0 reviews)

🔍 Overview of features

The Notify Me app is crucial for preventing potential sales loss by automatically displaying a Notify Me button on out-of-stock product pages. This feature captures the email addresses of interested customers, allowing the merchant to alert them via email once the product is restocked. The app offers extensive customization options, including the appearance of the button and the content of alert emails, ensuring a seamless integration with the store's branding. With the ability to manage requests and emails through the app dashboard and the convenience of not needing to set up or maintain an email server, the Notify Me app streamlines the process of restocking products and keeping customers engaged. By promptly notifying customers when products are available again, merchants can increase customer satisfaction, retain potential sales, and ultimately grow their business.
BISHQ: Back in Stock | Restock

Stop losing revenue due to out-of-stock items. Recover lost sales with Back in Stock notifications.

⭐️ 0.0 (0 reviews)

🔍 Overview of features

The most important features of the BISHQ app are its ability to allow customers to sign up for restock alerts, send automatic back-in-stock notifications, and provide analytics and reporting on product demand and sales.

By implementing the BISHQ app, merchants can improve customer experience by allowing customers to receive notifications when a product they are interested in is available again. This not only helps to increase customer satisfaction but also increases the chances of converting those customers into sales. The app's reminders feature ensures that customers receive multiple reminders until they make a purchase, increasing the likelihood of making a sale.

The app's analytics and reporting capabilities provide valuable insights into product demand and which products are bringing in the most sales. This information allows merchants to make informed decisions about restocking inventory and focusing on the most popular products.

Overall, the BISHQ app helps merchants recover lost sales due to out-of-stock items, improve customer experience, increase conversion rates, and boost sales. It also provides valuable data and insights to help merchants grow their business effectively.
Gerda restock

⭐️ 0.0 (0 reviews) Free plan available. 7-day free trial.

🔍 Overview of features

The most important features of the app are:

1. Automated back in stock alerts: The app allows shoppers to subscribe to upcoming and out of stock products via email. This feature helps merchants bring back customers to their store by notifying them when the desired products are available again.

2. Smart automation: The app sends automated restock alerts to subscribed customers, eliminating the need for manual notifications. This saves time for the merchant and ensures timely communication with customers.

3. Works with every theme: The app is compatible with all Shopify themes, making it easy to integrate into any online store without the need for coding or customization.

4. Supports multiple languages: The app supports multiple languages, enabling merchants to reach a wider audience and cater to international customers.

By using this app, merchants can effectively engage with customers who are interested in out of stock products. By notifying them when the products are available again, the app helps increase customer satisfaction and drive repeat purchases. Additionally, the automated nature of the app saves time and effort for the merchant, allowing them to focus on other aspects of their business.
Folio: Notify Me

Unlock Demand, Delight Customers: Your Ultimate Back-in-Stock Solution!

⭐️ 0.0 (0 reviews) Free plan available. Additional charges may apply.

🔍 Overview of features

The most important features of this app are the back-in-stock subscription form, the dashboard analytics, customization options, and the settings page.

The back-in-stock subscription form allows customers to easily subscribe to notifications for out-of-stock products, ensuring they are the first to know when items become available again. This helps merchants unlock demand by capturing potential sales that would have otherwise been lost due to product unavailability.

The dashboard analytics provide valuable insights into subscription trends, allowing merchants to identify which products are in high demand and adjust their inventory accordingly. This helps merchants stay ahead of demand and optimize their stocking strategies.

The customization options allow merchants to tailor the customer experience by customizing button layouts, subscription forms, and email templates. This ensures a seamless and on-brand experience for customers, increasing customer satisfaction and loyalty.

The settings page provides a centralized location for merchants to set their preferences, making it easy to manage and customize the app to their specific needs.

Overall, this app helps merchants grow their business by enabling them to unlock demand, delight customers with a personalized experience, and make data-driven decisions to optimize their inventory management.
In Stock Alerter by Lykdat

Looking for ways to make more sales out of every product restock? Try out In-Stock Alerter!

⭐️ 0.0 (0 reviews) Free plan available. Additional charges may apply.

🔍 Overview of features

The In-Stock Alerter app by Lykdat offers several important features to help merchants increase sales and customer engagement.

Firstly, the app automatically identifies out-of-stock items and adds a "Get Notified" button, allowing customers to sign up for personalized and automated email notifications when their favorite items are back in stock. This helps to keep customers engaged with the products they are interested in, increasing the likelihood of making a sale when the items become available again.

Secondly, the app detects when the items are back in stock and sends notifications to the interested shoppers. This ensures that customers are promptly informed when the items they want are available, reducing the risk of losing potential sales due to lack of awareness.

Additionally, merchants can customize the look of the emails that interested shoppers receive, allowing for a personalized and branded customer experience.

The app also provides valuable insights into customer interests, helping merchants understand what products are in high demand and enabling them to make informed decisions about inventory management and restocking.

Finally, the app offers easy installation, allowing merchants to set it up and start using it within minutes.

Overall, In-Stock Alerter helps merchants keep customers engaged, increase sales, and gain valuable insights into customer preferences, making it a valuable tool for growing their business.

Best Back in stock alert Shopify Apps in 2025

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