The Best Free and Premium Shopify Back In Stock Apps

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The back in stock feature allows your customers to sign up for an email alert. When products are back in stock, the customers will receiced a email, SMS or message notification of this.

If you’re more technical, you may want to do this manually. If you consider yourself non-technical, there are Shopify apps, that help you set up automatically.

Here is a list of the best Shopify Back In Stock Apps in 2024:

1. Back in Stock Product Alerts


This app will automatically let shoppers know when a product comes back in stock.

The shoppers can subscribe to out of stock products at the variant level (size, color, etc.). They don’t need login to sign up for alerts.

You don’t have to do anything.

2. Back In Stock: Customer Alerts


Back in Stock makes it easy for customers to sign up for a Back in Stock alert (Email or SMS Text Message). When you restock products the waiting customers are alerted instantly to bring them back to your store and complete the purchase.

This app works on the product variant level: customers are notified when the specific size or color they want is restocked. This gives you impressive rates of engagement and conversion.

It is simple to setup and runs automatically.

3. Back In Stock ‑ Restock Alerts


This app inserts a button on your out-of-stock products for customers to sign up to be notified the minute you restock products. It supports the widest range of notification options, including:

  • Email
  • SMS text message
  • Facebook Messenger
  • Web push notifications

It works at the product variant level. It’s hyper-targeted. Your customers will only receive alerts when the specific color, size, or style they wanted is back in stock in your inventory.

4. Back in Stock Alerts


This app will automatically send email notifications to customers whenever the desired product appears in stock again. With this app, you can get analytics on the number of notifications sent and keep track of the best sold / most popular products in your store.

5. Now Back in Stock


This app from Eastside Co is a powerful Shopify app that sends your customer stock alerts when their chosen items are back in stock. Customers can opt in to receive email, SMS alerts or push notifications when items are no longer out of stock, meaning you don’t have to miss out on sales when your inventory temporarily runs out.

This app can be customised to match the look and feel of your store, and doesn’t look like a third-party bolt-on. This reinforces trust with your brand, giving customers the confidence to share their data with you. Not only this, but the content of your restock alerts is also fully customisable to match your store.

6. Stockify


Stockify is an easy to install and easy to configure app which allows your customers get the notification if product out of stock by Facebook message or email.

When a customer is looking at a product, but this product is out of stock, the interest to buy but can not add to cart. This app will show get notification by Facebook and email, so customers need to click on Facebook or enter their email. When this product is available, they will get the announcement direct to Facebook and email.

7. Back in stock ‑ Notify users


This app has manual email feature as of now.


  • The admin can customize the text displayed.
  • Back in stock button’s font colour and background colour can be customized too!

8. Back In Stock Alerts Email+SMS


With this app, you can notify your customers via email and SMS when the product that they just missed out on, is back in stock!

Top Features

  • Unlimited emails/SMS alerts
  • Automated restocked notices
  • Follow-up reminders
  • Split email delivery into groups
  • Capture valuable data via Reports
  • Email platform integration

9. Now in stock @ $3



  • Ability to re-subscribe customers.
  • Manually add emails in the notification list.
  • Low stock Notification to admin.
  • Out of stock notification to admin.
  • Easily noticeable form to show product is out of stock and subscribe.
  • View an approx availability date if admin has added one.
  • Notifications emails send automatically when you add stock/inventory in shopify admin.
  • Show availability date. To let customers know by when the product will be available
  • See a list of products that are currently in demand
  • Customize the Stock notification email template
  • Can see a list of all the subscribers
  • Remove any subscriber if you want
  • Reports to show notifications sent

10. Back In Stock via Messenger


This app enables customers to subscribe to in-stock notifications. Once a product becomes available, the customer is notified, hits the “Buy now” button and checks out right in Messenger.


  • Easy integration: Just connect your Facebook account and select a business page
  • Instant sale: Customers can make purchases in Messenger using Shopify checkout
  • Time-saving: Casual conversations answer questions faster than email
  • All in one place: Notifications for each customer stay in a single chat thread
  • Highly customizable: Modify any messages or buttons
  • Any device is supported: Works on desktop, laptop, tablet and mobile
  • Available everywhere: Customize your chats in a language of your choice

11. Back in Stock Messenger


Back in Stock Messenger notifies customers on Facebook when inventory is back in stock. No email signup needed. Frictionless one-click opt-in, and they get an instant alert on Facebook when your product is ready for sale again!

12. Alert Me! Restock Alerts


This app allows customers to sign up to receive email notifications when you restock a certain product.

Once you’ve got the app installed, you don’t have to worry about anything! When you restock a product, this app will automatically email all customers who have signed up for restock notifications for that product.

Customers can easily sign up for restock notifications from the collections page or product page. When signing up from the collections page, they will be notified for all variants when they are restocked. When signing up from the product page, they are only notified if the variant they have selected is restocked.

13. Stocklert


Stocklert app is useful when your product is out of stock and your customer wants that product when it becomes available. It supports all free theme in shopify.


  • Allow a customer to subscribe out of stock products at the variant level.
  • Send mail to subscribed customers in queue when products come in stock.
  • Admin get notification when product becomes low.
  • Analysis of customer notification and no of customers subscribed.
  • Admin can monitor each notification (Sent, not send).
  • Customize mail template content.

14. Stockbot


By this app, Customers can signup to receive a notification when a product comes back in stock. This app use reliable, external servers designed specifically for sending emails. This means your customers receive the email notifications quickly with less chance of going to spam.

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