Top 10 best Shopify back-in-stock apps in 2026

Explore the list of the best Shopify apps for back-in-stock notifications. Choose the one you like, customize the message, and start gaining more profits by letting customers know when sold-out products get available again.

Top 10 best Shopify back-in-stock apps in 2026

If you’re showing a “Sold out” badge on your Shopify store for products that you plan to restock, you might want to let visitors know when exactly those products will become available. 

In this list, we’ve collected the best Shopify apps with back-in-stock alerts: they will help you automatically send notifications to customers when products they’re interested in get available again.

It’s a great opportunity to capture more leads and ensure a smooth user experience. Don’t frustrate your potential customers by not letting them know if sold-out products will return to your store :) 

Note that if you’re not going to restock a certain item, it’s best to remove it from your store’s pages. It’s easy to do so with Shopify apps for hiding out-of-stock products

CartBite

CartBite is a Shopify app with back-in-stock & restock alerts created to help you engage your customers and make your sales go up. Besides stock-related notifications, it allows for delivery tracking. The app includes a free plan.

CartBite

Avg. Rating

5.0

FREE Trial

Not available

Price from

Free

CartBite

CartBite

CartBite is a Shopify app with back-in-stock & restock alerts created to help you engage your customers and make your sales go up. Besides stock-related notifications, it allows for delivery tracking. The app includes a free plan.

Avg. Rating

5.0

Trial

Not available

Price from

Free

Pros

Great support

Simple to use

All features are customizable

cons

Some merchants complain about the lack of instructions on how to work with the app

Restockify

Restockify (Back in Stock: Restock Alerts) is a Shopify app that helps recover lost sales and build strong communication with your customers. With it, you can notify about restocked items via SMS, email, and push notifications. A free plan is included.

Restockify

Avg. Rating

4.9

FREE Trial

Not available

Price from

Free

Restockify

Restockify

Restockify (Back in Stock: Restock Alerts) is a Shopify app that helps recover lost sales and build strong communication with your customers. With it, you can notify about restocked items via SMS, email, and push notifications. A free plan is included.

Avg. Rating

4.9

Trial

Not available

Price from

Free

Pros

Alerts via email/SMS/push notifications

24/7 support

GDPR compliance

Simple dashboard with inventory metrics

cons

Some merchants complain that upgrading the pricing plan is troublesome

The app seems to slow down the store’s speed

ReStock

ReStock is a Shopify app for setting back-in-stock alerts to increase your sale rates. It allows you to customize and automate emails, SMS, or push notifications. A free plan is included.

ReStock

Avg. Rating

4.9

FREE Trial

Not available

Price from

Free

ReStock

ReStock

ReStock is a Shopify app for setting back-in-stock alerts to increase your sale rates. It allows you to customize and automate emails, SMS, or push notifications. A free plan is included.

Avg. Rating

4.9

Trial

Not available

Price from

Free

Pros

24/7 support

Multilingual widgets (in the premium plan)

Import and export of data

Fully customizable buttons, request forms, and notifications

cons

Some merchants complain that the app has bugs

Customization of emails requires knowledge of HTML

Back in Stock - Restock Alerts

Back in Stock - Restock Alerts is a Shopify app designed to help you bring back customers thanks to notifications about restocked products. The app supports many integrations and includes a free plan.

Back in Stock - Restock Alerts

Avg. Rating

4.9

FREE Trial

Not available

Price from

Free

Back in Stock - Restock Alerts

Back in Stock - Restock Alerts

Back in Stock - Restock Alerts is a Shopify app designed to help you bring back customers thanks to notifications about restocked products. The app supports many integrations and includes a free plan.

Avg. Rating

4.9

Trial

Not available

Price from

Free

Pros

Quick and easy setup

Integrations with Klaviyo and other popular email marketing tools

Multi-location and multi-language support

cons

Some merchants claim that email domain verification is not working

Some merchants face issues sending notifications to their clients

The app could be more user-friendly

Back in Stock: Customer Alerts

Back in Stock: Customer Alerts is a Shopify app to maximize the exposure of your store and notify the customer when the product is back on sale. It includes customizable emails, SMS, and push notifications, integrates with popular marketing tools, and offers a free plan among others.

Back in Stock: Customer Alerts

Avg. Rating

4.8

FREE Trial

Not available

Price from

Free

Back in Stock: Customer Alerts

Back in Stock: Customer Alerts

Back in Stock: Customer Alerts is a Shopify app to maximize the exposure of your store and notify the customer when the product is back on sale. It includes customizable emails, SMS, and push notifications, integrates with popular marketing tools, and offers a free plan among others.

Avg. Rating

4.8

Trial

Not available

Price from

Free

Pros

Multilingual support

Ability to customize the button and email templates

Integrates with MailChimp, Klaviyo, and other tools

cons

Some merchants complain that notifications were never sent

Sometimes the support is not quick and reliable

When uninstalled, the code remains in the store’s theme

Back in Stock Product Alerts

Back in Stock Product Alerts is a Shopify app to send effective notifications about restocked or pre-order items. It allows for customizations, integrates with marketing tools, and includes a free pricing plan.

Back in Stock Product Alerts

Avg. Rating

4.8

FREE Trial

Not available

Price from

Free

Back in Stock Product Alerts

Back in Stock Product Alerts

Back in Stock Product Alerts is a Shopify app to send effective notifications about restocked or pre-order items. It allows for customizations, integrates with marketing tools, and includes a free pricing plan.

Avg. Rating

4.8

Trial

Not available

Price from

Free

Pros

Easy customization

Allows for restock alerts and pre-order sign-ups

Works with Shopify Locations

Integrates with Mailchimp, Klaviyo, Retention Science, and other tools

cons

Some merchants complain that the app messed up their store’s code

Errors might occur from time to time

The free version offers only manually sent notifications; automated ones are included in paid plans

Ordersify

Ordersify is a Shopify app for sending notifications about back-in-stock products. It also notifies merchants about low-stock or out-of-stock items. The free plan is available.

Ordersify

Avg. Rating

4.9

FREE Trial

Not available

Price from

Free

Ordersify

Ordersify

Ordersify is a Shopify app for sending notifications about back-in-stock products. It also notifies merchants about low-stock or out-of-stock items. The free plan is available.

Avg. Rating

4.9

Trial

Not available

Price from

Free

Pros

Easy to customize

Integrates with popular tools like Mailchimp, Klaviyo, Langify

Supports 10+ languages

Provides reports and analytics

cons

Some merchants claim support to be ineffective

Notifications might end up in the spam

Sometimes, it’s not easy to adjust the layout to particular needs

Zooomy Back in Stock

Zooomy Back in Stock is a Shopify app that lets you notify your customers when certain products get back to your store. It supports both manual and automated emails. The free plan is limited to 10 subscribed items and 10 branded emails.

Zooomy Back in Stock

Avg. Rating

5.0

FREE Trial

Not available

Price from

Free

Zooomy Back in Stock

Zooomy Back in Stock

Zooomy Back in Stock is a Shopify app that lets you notify your customers when certain products get back to your store. It supports both manual and automated emails. The free plan is limited to 10 subscribed items and 10 branded emails.

Avg. Rating

5.0

Trial

Not available

Price from

Free

Pros

Easy to set up

Ability to notify about product variants

Additional newsletter subscription 

cons

The free plan is very limited, and most features are included in more expensive plans

Some merchants complain about the lack of theme compatibility

Back in Stock Notifications

Back in Stock Notifications is a Shopify app that lets you design a pop-up to invite customers to receive emails about an out-of-stock product when it gets available again. The free plan allows for only 10 subscribers.

Back in Stock Notifications

Avg. Rating

4.6

FREE Trial

Not available

Price from

Free

Back in Stock Notifications

Back in Stock Notifications

Back in Stock Notifications is a Shopify app that lets you design a pop-up to invite customers to receive emails about an out-of-stock product when it gets available again. The free plan allows for only 10 subscribers.

Avg. Rating

4.6

Trial

Not available

Price from

Free

Pros

Simple to use

Customizable pop-ups and emails

24/7 support

cons

The app only works with emails—push notifications and SMSs are not included

Analytics don’t give much insight into CTR and conversion rates of your notifications

Now Back in Stock

Now Back In Stock is a Shopify app for notifying customers about restocked products. It allows for customization of emails, SMSs, and push notifications. The free plan includes only up to 50 emails.

Now Back in Stock

Avg. Rating

4.4

FREE Trial

Not available

Price from

Free

Now Back in Stock

Now Back in Stock

Now Back In Stock is a Shopify app for notifying customers about restocked products. It allows for customization of emails, SMSs, and push notifications. The free plan includes only up to 50 emails.

Avg. Rating

4.4

Trial

Not available

Price from

Free

Pros

Easy to set up

Integrations with popular email services

Ability to send notifications about product variant combinations

Analytical dashboard

cons

SMSs are only available in more expensive plans

The limits might not be suitable for large-scale merchants

We hope one of these apps will help you manage effective back-in-stock notifications and, as a result, receive more sales. When choosing the most suitable back-in-stock app for your Shopify store, pay attention to their limits in emails/SMSs/push notifications, customization options, and integrations with popular services like PushOwl or Klaviyo

Tomas Janu

Tom loves writing about upselling, conversion optimization, and e-commerce trends. He is one of our co-founders, and you can sometimes talk to him if you contact our support team. Make sure to follow him on LinkedIn for more Shopify-related tips and news.

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