7 Best Shopify Back in Stock Apps - 2026
Last modified: October 20, 2026
| # | Image | Name | Price / month | Rating | Adoption |
|---|---|---|---|---|---|
| 1 |
|
Back In Stock ‑ Restock Alerts
|
Free to install + from $19.99/mo | (1,457) | <0.1% |
| 2 |
|
Back in Stock Product Alerts
|
From $19.99/mo | (445) | <0.1% |
| 3 |
|
Back In Stock: Customer Alerts
|
Free + from $19/mo | (1,003) | <0.1% |
| 4 |
|
Back in Stock Alerts
|
Free + from $9/mo | (62) | - |
| 5 |
|
Back in stock ‑ Notify users
|
Free + from $5.99/mo | (150) | - |
| 6 |
|
Now Back in Stock
|
Free + from $10/mo | (174) | <0.1% |
| 7 |
|
Alert Me! Restock Alerts
|
Free + from $4.99/mo | (255) | - |
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Data first, opinion second: we track usage across 3.5+ million Shopify stores daily, and have since 2017. The stats tell us what merchants actually use; our editors rank the final picks by quality, pricing, and fit.
Back In Stock ‑ Restock Alerts
When you have a popular product, it’s very likely that it will go out of stock quickly. This is a problem because a product that is out of stock means you’ve lost sales and potential revenues. Therefore, you need a way to tell customers when your stock will be back up again for certain products. This app helps you do that by inserting a button to your products page that allows the customer to be notified as soon a product is back in stock.
The customer can choose between several different methods of notification with email, SMS, Facebook Messenger and push notifications all available to website owners. And if you have products that have variants and a variant is out of stock, but others aren’t, then the app can work around that and only offer notifications for that variant. And if several variants are out of stock and only one comes back into stock, then the notifications will only be sent to those that showed an interest in that variant.
The app is easy to install, it takes just one click, no coding and no developer is needed. Customization of the notifications is easy and you can customize other aspects such as the button, sign-up form and more to make them match your current branding. Plus you can integrate this app with several other third-party services like MailChimp and others to maximize marketing potential.
Back In Stock ‑ Restock Alerts Highlights:
- Send messages about stock being available again through different communication channels.
- Integrate with third-party services like MailChimp.
- Easy to customize to match your branding.
- One-click installation.
Back in Stock Product Alerts
This app is used by over 4,500 Shopify store owners and results in 30-35% click through rate and 20% conversion rates on alerts. Therefore, it can be very effective and offers a great reward for those who use this app. The app is rather simple to use, the visitor signs up to out of stock notifications, that can be down to the variant level, and then the app will automatically let the shopper know when products are back in stock.
If there’s a large list of people wanting to know about one item, then the list of emails sent out can be split into smaller batches. This prevents your server from being marked as being spam. And there’s no manual work for you to do.
Plus this app can work for different locations through integrations with Shopify Locations. Therefore, if you run several stores as well, customers can sign up to notifications when stocks are back in their local stores. You can also specify that notifications are sent out only when stock levels are above a certain amount of stock.
Back in Stock Product Alerts Highlights:
- Works straight away on your store. All you have to do is install it and configure the app.
- Personalize emails for those who have subscribed to your alerts.
- Use your own email service provider to send alerts.
- Can integrate with social media sites like Facebook, Instagram and more.
Back In Stock: Customer Alerts
This app allows you to notify customers through email and SMS when a product is back in stock. Therefore, customers can come back and make a purchase as soon as you’re ready to sell to them. With a simple installation and setup process, you can get going with this app within minutes and start bringing back customers who would otherwise be lost.
The app works with both single style products and those with numerous variants. And the app has been used on numerous websites with great success. Engagement rates (click throughs, conversions, etc.) have been high and therefore, the monthly subscription fee is worth the investment.
Customization is easy with the app. You can get the ‘email me when available’ button immediately placed on out of stock product pages. This app will collect the email address for notifications. However, you can add SMS text message capability if you would prefer. The button is customizable, so it can match your current branding.
When a customer clicks on the button, they are presented with a popup that can collect all the relevant data. You can then edit the email template with ease using the Liquid file, just like you would with any Shopify file.
Back In Stock: Customer Alerts Highlights:
- Can customize many elements of the app to make it more functional for you.
- Send alerts via email or SMS.
- Adds a button automatically to out-of-stock products.
- Collects emails which can be used for other campaigns too.
Back in Stock Alerts
This app’s developers have looked into the statistics and found that you can loose 70% of your customers when you run out of stock. This can equate to $1.75 trillion worth of orders across the US every year. You can reclaim some of those with this app, and be on the way to improve the valuation of your business as well as the revenues.
This app works very easily. Customers complete a form that includes their contact details in a popup when they request to be notified of a restock. When the item is restocked, an email is automatically sent to them. This will include a link back to your store, and even the product in question.
To setup the notification, you only need 30 seconds. It works great straight out of installation and will help improve revenues as soon as you get your first restock.
This app is not based on a monthly fee. Instead, it works out the cost on the number of notifications sent. Therefore, it is free when there are no notifications going out. As soon as the number of notifications increase, the price of the app increases. It’s a little more complicated than a fixed price, but it does mean that when you’re starting out or have low months, costs aren’t too high.
The app also comes with reporting. You can see which products are most popular. This helps you forecast your need for products. For instance, if you know that there are 100 people waiting for a product, then you know you need to order at least that amount next time, if not more.
Back in Stock Alerts Highlights:
- Emails subscribers as soon as products come back in stock.
- Comes with reporting, so you can see what is popular.
- Pay for only what you use.
- Easy to install and configure.
Back in stock ‑ Notify users
This simple to use app will allow you to send customers an email alert when products are back in stock. This is more of a simple option. There isn’t an automatic solution, you have to send customers the email one-by-one and this has to be done from the backend of the app.
To subscribe, there is a notification widget presented to a customer when the product is out of stock. This will add them to the list that is in the backend of the app for you to manually send the notification.
Back in stock ‑ Notify users Highlights:
- A simple to use app, that allows you to manually notify customers about back in stock items.
- Send emails through the backend of the app.
- Adds a notification widget to out of stock product pages.
- There is a free version of the app.
Now Back in Stock
This app allows you to send notifications to customers via email SMS or push notifications when items are back in stock. This app is very easy to use and it lets customers choose their preferred method of communication when stock is available again.
The app works with tokens, you get a set amount of monthly SMS alert tokens. You can see how many tokens you have left in your plan and upgrade at any time when you have run out. However, you get unlimited email alerts. Which can be really useful and the majority of people will often choose email because it is nonintrusive.
The app works with variants as well. Meaning that when a variant is restocked but others aren’t, only those that wanted that variant will be informed of the restock. Setting up the app is really simple. You can do it within minutes and there are simple, clear instructions to help and if you’re stuck, there’s friendly support available. If you’re really struggling, the app development team offer a free installation for you.
Now Back in Stock Highlights:
- Free, installation for those who aren’t technically minded.
- Sends SMS, push notifications and email alerts, based on the customer’s choice.
- Get a set amount of SMS tokens, but unlimited email alerts.
- Easy to use.
Alert Me! Restock Alerts
This app allows you to sign customers up to email notifications so they can know immediately when products they want are back in stock. The app is fully automated, when it is installed on your website, you don’t need to do a thing. The app can handle variants and other complications with ease, allowing you to focus on other business critical activities, like marketing and fulfilling orders.
Customers can sign up for notifications on product pages or collection pages. This is a great option, because it offers lots of opportunities for your customers to subscribe to your brand and get the notifications. Therefore, you can grow the number of customers coming back to your store.
The app connects directly to your store. It uses no popups and the branding matches your store.
The app can also help with restocking decisions. You can see what products customers have signed up for. Therefore, you can see what products need to be purchased now and in what quantities.
Alert Me! Restock Alerts Highlights:
- Doesn’t use popups to signup customers.
- Easy to install and automatically works. No manual operation.
- Send emails immediately to audiences who have signed up for notification.
- Can handle variants.
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Can customers prioritize which products they want to be notified about first?
Certain back in stock apps may offer prioritization features, enabling customers to indicate which products they wish to receive restock alerts for first.
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How do back in stock apps handle variant-specific restocks?
Back in stock apps typically allow customers to sign up for restock alerts on specific product variants. When a variant is restocked, only the customers interested in that variant receive a notification.
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How do back in stock apps impact site performance and load times?
Well-designed back in stock apps should have minimal impact on site performance, but it’s important to choose apps that are optimized for speed to avoid any potential slowdowns.
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What is the best back in stock app for Shopify?
There is no single winner, because the right app depends on the channels you need and your budget. In our store scans Amp and Appikon are the two we detect most, and both hold strong App Store ratings (4.9/5 for Amp, 4.8/5 for Appikon). If you only need email alerts, a lighter app such as Zooomy or Dibble can be cheaper. Match the app to how you want to reach customers.
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Is there a free Shopify back in stock app?
Yes. Most apps in this list include a free plan, usually capped at a set number of alerts a month, which suits a small store or a trial. Amp, Appikon, Shop Circle, Zooomy and Dibble all offer a free tier, while Swym runs on a paid plan with a free trial. The free caps are low, so a busy catalog will usually move to a paid plan.
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Do Shopify back in stock apps send SMS as well as email?
Email is offered by every app here and is the most used channel because it is free to send and easy for shoppers. Several apps add SMS, including Amp, Appikon, Swym, Shop Circle and SpurIT, and Amp also offers web push. SMS almost always costs extra per message on top of the plan price, so check the per-message rate before you turn it on.
Key Features of Shopify Back in Stock Apps
Real-Time Inventory Tracking
Real-time inventory tracking is a cornerstone feature, enabling immediate updates to customers when items are restocked.
This feature ensures that the inventory data presented to customers is always accurate, preventing any disappointment from outdated information.
Customizable Alert Systems
Customizable alert systems allow merchants to tailor the communication to fit the brand’s voice and aesthetic, providing a smooth experience for the customer.
Flexibility in design and messaging ensures that alerts feel like a natural extension of the store. This personal touch can enhance the effectiveness of the alerts and improve customer satisfaction.
Analytics and Reporting Tools
Analytics and reporting tools embedded within back in stock apps offer valuable insights into customer behavior and product demand.
These tools help merchants identify trends, such as which products are most sought after, enabling them to make data-informed decisions.
Understanding these patterns helps you optimize stock levels and plan future inventory purchases.
Maximizing Sales with Shopify Back in Stock Apps
Streamlined Notification Processes
Streamlined notification processes ensure that customers are promptly informed about product restocks, which can significantly reduce the time between customer interest and purchase.
By automating this communication, stores can maintain customer engagement and minimize the risk of losing sales to competitors.
Efficient notifications serve as a gentle reminder, bringing customers back to complete their purchase.
Enhanced Customer Retention Strategies
Back in stock apps serve as a strategic tool for enhancing customer retention by keeping shoppers connected to the brand even when items are unavailable.
This consistent engagement builds a relationship of trust and reliability, positioning the store as attentive to customer needs.
Over time, this strategy can lead to increased customer loyalty and a higher lifetime value per customer.
Data-Driven Restocking Decisions
Utilizing the data from back in stock apps allows for more informed restocking decisions, aligning inventory with actual customer demand.
By analyzing which items customers are waiting for, stores can prioritize their supply chain processes accordingly.
This data-driven approach helps in maintaining optimal stock levels, ensuring popular items are readily available to meet customer expectations.
Conclusion: 7 Best Shopify Back in Stock Apps
Shopify back in stock apps are an essential part of your inventory management apps if you want customers to return to your store. Customers can get disappointed when an item is out of stock, but if you have this feature, and they’re loyal, you can grow your business. Want to hide sold out products? Try an app to hide sold out products.
After all, it is easier to convert an existing customer or one that has been to your store many times than one that is new to your store. So, which Shopify back in stock app will you choose? Select the best you choose and then log into your store and install it.
