Top Shopify Back-in-Stock Apps for 2026: Compared
Back-in-stock apps for Shopify help merchants manage product inventory and let customers know when an item they wanted is available again. They keep tabs on stock levels and send notifications on their own whenever a product returns.
Shoppers sign up for alerts and receive messages by email, SMS or other channels once the product is back. Merchants can also see which items attract the most demand and adjust stock accordingly, which reduces the sales lost to sold-out products.
Using these tools, businesses can raise customer satisfaction and loyalty, grow sales, and avoid missing orders because of inventory problems.
16 Best Back-In-Stock Apps for Shopify
Sixteen back-in-stock apps made our 2026 shortlist for Shopify. Open any one to review its rating, pricing and best qualities.
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Appikon is a Shopify app for telling customers when items that were sold out are available again. It automates inventory handling, lifts revenue and improves the customer experience.
Extensive reporting tools give you useful insight into what customers want.
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CartBite is an all-in-one marketing automation tool for back-in-stock, abandoned cart and price drop notifications by email, SMS and push. Features include restock notices, price reduction alerts, cart abandonment alerts and personalized push notifications.
It also supports on-demand campaigns, and its widgets and notifications are fully customizable.
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Ordersify lets you set up pre-order and coming-soon campaigns and send customers back-in-stock reminders. It also saves time with automated alerts and email reports on low-stock and out-of-stock products.
A low-stock bar shows shoppers how many units remain, and product badges tell them an item's status, such as coming soon, pre-order, out of stock or low stock.
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This app builds automatic restock and reorder alerts around your best-selling products, which is a good way to reach shoppers who showed interest but had to wait for a restock.
Follow-up messages go out at increasingly frequent intervals to tell customers their preferred item is available again. The data-driven tool also shows how many customers signed up for refill notices.
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For pre-orders, you can configure them around inventory and start and end dates and times, send the buyer a pre-order email, and automatically tag the order with details like preorder and shipment date.
For back-in-stock, a product returning triggers an automatic email or text to subscribers.
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The admin can edit the displayed text, and the app works with nearly every theme in the Shopify theme store and handles variants well. It sends automatic emails, notifies the admin by email and sends a thank-you email.
Other features include double opt-in, a collection page, hiding the widget on chosen products, location support, exporting the subscriber list, and a newsletter signup option. You can change the font and background colors of the Back in Stock button.
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Install the app, get running within minutes, and start earning from out-of-stock products, as merchants using its AI already do. Place a Notify me widget on product, home and collection pages to build demand.
Notifications go out automatically by email, SMS or push with a no-code setup. You can personalize everything, receive AI recommendations, or get help from a success team available around the clock, along with full reports on lost sales and revenue recovered through conversion reminders.
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Restock Rocket places an Alert me when available button on each out-of-stock item and lets shoppers register. When you restock, they receive an automated back-in-stock email, SMS or push notification. Thousands of businesses use it to win back sales around the clock.
You can design the button and popup, grow your mailing list, add it to collection pages and send reminders. It also suits waitlist and pre-order situations.
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Shoppers who join a restock notice through the Alert Me option mean you no longer lose sales when stock runs out. The button, the notification popup and the body of the email can all carry your branding.
The app produces unlimited leads and shows how much demand your products have, and daily analytical reports keep you posted on customers and products.
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Swym helps you capture demand before stock arrives. Customers sign up for email or SMS alerts when particular sold-out items return, and the app includes advanced inventory controls such as batch alert sending.
It works within five minutes of installation and can be adapted to your site. Send alerts through your own ESP or SMS platform, or let Swym send emails for you. Enable opt-in at alert signup to grow your email list, and use AI-powered suggestions for alternative products.
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OnVoard lets customers sign up for automated notifications when favorite products return. Many competing apps cap the number of back-in-stock emails per month, which the vendor considers unfair given that most restocked items are seasonal.
Instead, OnVoard charges a flat $14.90 per month and only asks for more when you need to send additional emails.
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This app sends real-time, automated restock alerts to customers as soon as preferred products return. Through a simple form on product or collection pages, shoppers can sign up for unlimited notifications on any product.
Because alerts go out once you refill the items, the process is entirely hands-free, and it is one of the simplest ways to boost sales of newly stocked products.
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One-click setup turns on an Email Me button on your product page without any coding, and it supports Online Store 2.0. Customers are alerted when the item is restocked.
You can assemble your email notification template from blocks, a quick way to catch attention and recover lost purchases. Start-ups are welcome, and live chat support is available around the clock.
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Stockie makes it simple for retailers to monitor products that are running low, using automatic, highly configurable low stock notifications. You set a threshold, and it notifies you and your team once a product's inventory drops beneath it.
That way you have plenty of time to replenish stock before it runs out.
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This app helps you sell products that happened to be unavailable at the moment a shopper arrived. Visitors are invited to leave an email address and are told when a specific product or variant becomes available.
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This app helps you hold on to business that might otherwise go to competitors and boosts customer loyalty. Email, SMS and push notifications bring shoppers back when sold-out items return.
Notifications go out automatically so you can focus on other priorities, and SMS alerts can reach customers in over 200 countries. The widget and notifications are easy to restyle to match your store.
