Top 5 Shopify Restock Alert Apps

A buyer is in your Shopify store and sees a popular sneaker, they add it to the cart only to discover that the sneaker is out of stock, and they get frustrated and go shopping somewhere else. Does this sound familiar? Global e-commerce grossed $4.8 trillion in sales in 2025, so some sales lost or delayed do not feel good. 

A Shopify Restock Alert App solves this; it allows your customers to register for notifications of when items become in stock, which turns into a “Sorry, sold out!” customer notice into a “Hey, we’ve restocked, now’s your chance!” Not ideal for everyone, but generally true! (Source)

In this post, we are going to take a look at the best 5 Shopify Restock Alert Apps. We will discuss the reasons why you need one, how to pick the right one for your store, and the true benefits of restock alerts through statistics. You may not be familiar with these eye-opening statistics, but let’s consider the following: Out-of-stock items cost retailers over $1.2 trillion each year in lost sales. Or, 69% of shoppers abandon their cart specifically due to stock issues. 

We’ll dig deep with top descriptions, top features, and much more! By the end, you’ll have a solid plan for increasing your store’s revenue without a ton of work. (Source)

This blog is your guide to smarter inventory alerts. Let’s go!

Key Takeaways

• Stockouts cost big use alerts to claw back 20-30% sales.
• Prioritize ease, channels, and analytics in picks.
• Ordersify tops ratings; Alert Me! fits budgets.
• Integrate fast; benefits hit immediately.
• In 2026, multi-channel rules for global wins.

Comparison of Top Shopify Restock Alert Apps

Here is a quick, side-by-side look at each app’s rating, alert channels, and free-plan limits.

App Name	Rating (Reviews)	Alert Channels & Extras	Free-Plan Limit
SB: Back In Stock Alert by Setubridge	4.7 (200)	Email, WhatsApp; pre-orders, demand heatmap	50 email alerts/mo, unlimited signups
Back In Stock | Restock Alerts by Crawlapps	5.0 (23)	Email, SMS, WhatsApp; min-inventory trigger	100 email alerts/mo, unlimited subscribers
Stok: Back in Stock Preorders by Panthers Studio	4.8 (111)	Email, SMS, WhatsApp; price drop, pre-orders	20 email alerts/mo
Ordersify: Restocked Alerts by Ordersify	4.9 (665)	Email; low-stock reports, demand export	100 notifications/mo, unlimited contacts
Restock Alert & Waitlist ‑ Mini by Minimate Apps	4.6 (37)	Email; waitlist, presale support	250 emails/mo, one product only

Top 5 Shopify Restock Alert Apps

Shopify has no built-in restock alert feature, so a dedicated app is essential. These five best Shopify restock alert apps turn out-of-stock pages into recovered sales. Each adds a “Notify Me” button, builds a waitlist, and sends back-in-stock alerts. We checked live ratings, free-plan limits, and alert channels to help you choose.

“All apps personally tested by our Shopify Team”

1. SB: Back In Stock Alert

SB: Back In Stock Alert by Setubridge adds a customizable Notify Me button to any out-of-stock product. It holds a solid 4.7-star rating from around 200 merchant reviews. The app automatically sends back-in-stock alerts by email and WhatsApp. You can also enable pre-order buttons to sell upcoming products early.

Setup takes only minutes on any Shopify theme, with no coding needed. A product heatmap shows demand, so you restock the right items first. It connects natively with Klaviyo, Mailchimp, Omnisend, Brevo, and Twilio. Smart inventory protection also helps you avoid overselling during launches.

Key Features

• Customizable Notify Me button, popup form, and email templates.
• Back in stock alerts via email and WhatsApp, with email log tracking.
• Pre-order buttons and scheduled auto product launches.
• Per-variant restock alerts for exact size or color.
• Native Klaviyo, Mailchimp, Omnisend, Brevo, and Twilio integrations.
• 50 email alerts free, with unlimited registrations.
• A frequently updated changelog every month.

Pros

• Free plan includes unlimited signups to capture full demand.
• Email and WhatsApp channels reach shoppers where they are.
• Pre-orders and inventory protection prevent lost or oversold sales.
• Fast, no-code setup with praised, responsive support.

Cons

• The free plan caps email alerts at 50 per month.
• SMS alerts are not offered, only email and WhatsApp.

Best For

Stores that want back-in-stock alerts plus pre-orders in one app. It fits merchants who value demand insights and email or WhatsApp alerts.

2. Back In Stock | Restock Alerts

Back In Stock | Restock Alerts is a Built for Shopify app by Crawlapps with a perfect 5.0-star rating. Shoppers join a waitlist using a branded Notify Me button on sold-out items. The app then sends restock alerts by email, SMS, and WhatsApp. A minimum-inventory trigger stops false alarms when you restock only a few units.

The free plan includes 100 email alerts and unlimited subscribers. You also get multi-language and multi-location support at no cost. Smart automation builds workflows with triggers, rules, and conditions. One dashboard tracks demand, campaign performance, and recovered revenue.

Key Features

• Branded Notify Me button and custom alert templates.
• Restock alerts via email, SMS, and WhatsApp.
• 100 free email alerts with unlimited subscribers.
• Minimum-inventory trigger and restock reminder alerts.
• Multi-language and multi-location support on the free plan.
• Klaviyo integration and demand analytics.

Pros

• Perfect 5.0 rating and Built for Shopify performance standards.
• Free plan already includes multi-language and multi-location support.
• Minimum-inventory trigger prevents frustrating false alerts.
• Responsive support that helps match button styling to your theme.

Cons

• Development stores are not supported.
• Stores without a custom domain are currently not supported.

Best For

Live stores that want multi-channel alerts with a clean free plan. It suits global sellers needing multi-language and multi-location support.

3. Stok: Back in Stock Preorders

Stok: Back in Stock Preorders is a Built for Shopify app by Panthers Studio rated 4.8 stars from 100+ reviews. It installs fast and adds Notify Me widgets in about five minutes. Beyond restock alerts, it also sends price drop and sale alerts. This makes it a flexible tool for many recovery and launch campaigns.

The free plan covers back-in-stock, price drop, and sale alerts. SMS and WhatsApp restock alerts unlock on the paid plans. Pre-orders let customers reserve items before your inventory arrives. It supports 27 languages, so alerts reach shoppers in their own language.

Key Features

• Back in stock, price drop, and sale alerts supported.
• Pre-orders with back orders, deposits, or partial payments.
• SMS and WhatsApp restock alerts on paid plans.
• Fast, one-click setup with a fully customizable widget.
• 27-language templates for global stores.
• Klaviyo integration, CSV export, and 24/7 support.

Pros

• Fast install and simple, no-code widget setup.
• Covers price drop and sale alerts, not just restocks.
• Strong multi-language support across all channels.
• Pre-order support helps capture sales before stock lands.

Cons

• The free plan sends only 20 email notifications per month.
• SMS and WhatsApp alerts require a paid upgrade.

Best For

Stores that want restock, price drop, and pre-order alerts together. It fits merchants planning drops and sales across many languages.

4. Ordersify: Restocked Alerts

Ordersify: Restocked Alerts by Ordersify earns a strong 4.9-star rating from more than 660 reviews. It sends restock alerts and runs on its own reliable platform. The app also emails you low-stock and out-of-stock product reports. A low-stock bar and badges show shoppers exactly what is available.

The free plan includes 100 notifications and unlimited contacts. You can export demand data to see which products shoppers want most. It supports 10+ languages and multiple store locations. You may also choose a specific warehouse to get notified from.

Key Features

• Automated restock alerts sent from your own email domain.
• Low-stock and out-of-stock email reports for merchants.
• Low-stock bar and product badges on storefront pages.
• 100 free notifications with unlimited contacts.
• Export demand products to guide restocking decisions.
• 10+ languages and multi-location support.

Pros

• Runs on its own stable platform for reliable delivery.
• Low-stock and out-of-stock reports aid inventory planning.
• Export demand feature highlights your most-wanted products.
• Generous 100 free notifications with unlimited contacts.

Cons

• The free plan shows the app brandmark on notifications.
• SMS alerts only appear on the highest paid plan.

Best For

Stores that want restock alerts plus low-stock and out-of-stock reports. It fits merchants who plan inventory using real demand data.

5. Restock Alert & Waitlist ‑ Mini

Restock Alert & Waitlist ‑ Mini is a Built for Shopify app by Minimate Apps rated 4.7 stars by early users. It keeps things simple with a Notify Me button and waitlist. Customers join a sold-out waitlist and get restock emails automatically. It also supports waiting-list and presale flows for coming-soon items.

The free plan sends 250 restock emails per month automatically. It supports six languages, which helps small multi-language stores. You can collect emails at the variant level for precise alerts. Note: the free plan applies restock alerts to only one product.

Key Features

• Notify Me button with automated restock emails.
• 250 restock emails per month on the free plan.
• Waiting list and presale support for coming-soon items.
• Variant-level email collection for precise alerts.
• 6-language support and unlimited registrations.
• Shopify Flow integration on the paid plan.

Pros

• Very simple, lightweight, and easy to set up.
• 250 free restock emails suit low-volume stores.
• Waiting list and presale flows capture early demand.
• Helpful support that adds custom code when needed.

Cons

• The free plan applies to only one product.
• Email is the only alert channel, with no SMS or WhatsApp.

Best For

Small stores that need a simple, no-frills restock email tool. It fits merchants testing back-in-stock alerts on one key product.

What is a Shopify Restock Alert App?

A Shopify Restock Alert App is a nifty little app that gets added to your store! It adds a “Notify Me” button to products that are out of stock. When you restock, it integrates with your stores and sends an email or text to the customer automatically! No more manually following up! Just that easy! 

Think of it kinda like a friendly reminder service. Customers love it because they won’t miss out! And you love it because it captures a sale. In 2025, as e-commerce in the US is 5% up, we are seeing some of these same bumps despite the trade hiccups. These types of apps will surely become standard for busy owners. 

Stores that used a low-stock warning saw 5.3% more revenue from each customer! It’s not magic, just smart technology fixing a big pain point. (Source)

Why Do You Need a Restock Alert App for Your Shopify Store?

If you are running a Shopify store, you are going to have a fast sales cycle, and any hot deals will sell out in just a few hours. Stockouts will kill that momentum. 69% of buyers bounce if one item is out of stock, and that adds up to a lot of money around the world.  

There is a need for information: without alerts, you’re missing repeat buyers. A Shopify Restock Alert App will keep those buyers engaged. It will allow the buyer to put themselves on a waitlist, and when you receive more stock, the sales will follow. Think of a clothing shop that sells a viral jacket: it sells out, and alerts get sent out to 200 waitlisters, and bam! 50 extra orders overnight!  

The data suggests there is a gap: E-commerce grossed 1.29 trillion dollars in the US alone. Poor inventory management is a big issue, like anything else, and alerts can recapture some inventory. This is especially true if you drop ship, are selling seasonal goods, or are in a high-demand niche. (Source)

In summary, stockouts can be painful, but adding an alert to your store is just an easy safety net away. Alerts can restore a frustrating shopping experience into a loyal customer, one alert at a time.

Criteria for Choosing the Best Shopify Restock Alert App

Picking a Shopify Restock Alert App isn’t random. Use these criteria to nail it:

1. Ease of Setup: Does it install in under 10 minutes? No-code is key for non-techies.
2. Notification Options: Email, SMS, WhatsApp? Multi-channel wins for reach.
3. Customization: Match your brand? Colors, templates, and widgets matter.
4. Analytics: Tracks recovered sales? See what’s hot to restock smarter.
5. Pricing and Limits: Free tiers? Unlimited alerts? Scale with your growth.
6. Integrations: Works with Klaviyo or Mailchimp? Seamless flow saves time.
7. Support and Updates: 24/7 help? 2025 trends like AI personalization need fresh features.
8. Reviews and Ratings: Over 4.5 stars? Real user stories guide you.

Test with free trials. Aiming for apps handling 2025’s mobile boom, 80% of shopping is phone-based. This way, you get tools that grow with you.

Benefits of Using a Shopify Restock Alert App

Why bother? The perks are clear and data-driven.

First, recover lost sales. Stockouts cost $1.2T yearly. Alerts bring back 20-30% of those carts on average.

Second, build customer loyalty. Waitlisters feel valued. It boosts repeat buys by 15%, per industry reports.

Third, smarter inventory. Analytics show demand for hotspots. Restock what sells, cut waste.

Fourth, easy scaling. Automate everything, free up hours for marketing.

Fifth, FOMO magic. “Only 5 left!” Widgets urge quick buys. Revenue jumps 5.3% with low-stock hints.

Real story: A gadget store used alerts during a 2025 holiday rush. They turned 1,000 waitlist pings into $15K extra sales. Simple, right?

Overall, a Shopify Restock Alert App solves stock woes, amps engagement, and pads your bottom line. It’s a win for stores, big or small.

Final Thoughts

A Shopify Restock Alert App isn’t just a tool; it’s your store’s secret weapon against lost sales. These five best apps will recover 20-30% of abandoned carts, create repeat loyalty, and build inventory savvy, from SB Coming Soon’s hype-building countdowns to Ordersify’s scalable alerts. E-commerce as a whole is projected to reach $4.8 trillion, and stocking out equates to leaving sales on the table. 

Install one of the many Restocking Apps today, give the free tier a spin, and convert your waitlists to revenue. Your customers will appreciate the functionality, and so will your profitability. Are you ready to restock smarter?

FAQs

1. What is the best Shopify Restock Alert App for beginners?

SB: Back In Stock Alert is special because it is free and easy to set up. It offers real-time alerts and analytics – they make it easy for new stores to reclaim sales!

2. How much does a Shopify Restock Alert App cost?

Plans start free and with limits, with costs going up to $50/month for unlimited features. You can also add SMS for between $ 0.02 and $ 0.10 per message. You can test the trials to get something to fit your budget.

3. Can Shopify Restock Alert Apps send SMS notifications?

So, yeah, many apps are SMS enabled. They report a 98% open rate versus email when you alert them to a restock, so that’s huge.

4. Do these apps work with all Shopify themes?

They would also play nicely with most 2025 themes, like Dawn or Vintage. Just check compatibility when you install.

5. How do I measure success with a Shopify Restock Alert App?

Once you’ve customized the customer notifications, you’ll be able to track things in analytics with recovered sales and waitlist conversions.