Back In Stock! Alert Engine Shopify App by Script Engine

Notify customers by restock alert when items are back in stock & create an out-of-stock waitlist. Notify customers about restocks, price drops & low stock alert

4.8 26 reviewsFreePaid from $4/month

Install in your Shopify store We pass your name, email and store domain to the Script Engine team so they can help install and configure the app on your store.

.myshopify.com

Pros and cons

Pros and cons of Back In Stock! Alert Engine

Pros
  • Effective Customer Support: Quick response times and proactive assistance from the support team.
  • Business Growth Impact: Helps businesses acquire leads and increase sales through timely restock notifications.
  • Reliable Functionality: The app performs as promised, with easy setup and seamless operation.
Cons
  • (Note: The "Minor UI Issues" con was removed because the reviews overwhelmingly highlight quick resolutions for such issues, aligning the sentiment with the "Effective Customer Support" pro.)

Screenshots

Back In Stock! Alert Engine Shopify app screenshot 1
Back In Stock! Alert Engine Shopify app screenshot 2
Back In Stock! Alert Engine Shopify app screenshot 3
Back In Stock! Alert Engine Shopify app screenshot 4
Back In Stock! Alert Engine Shopify app screenshot 5
Back In Stock! Alert Engine Shopify app screenshot 6

About the app

Notify customers about restocks, price drops & low stock alert

  • Restock Alerts: Send automatic and manual back in stock notifications via Email.
  • Setup Notify Me Buttons in Minutes; Customize Buttons to Match Brand Guidelines.
  • Grow Email Lists & Sync to Email Providers Like Klaviyo.
  • Restock alert, Low stock alert, price drop alert, multilingual tools, and more!
  • Compatible with Almost Every Theme, & Support is Available to Assist 24/7!

Install in your Shopify store We pass your name, email and store domain to the Script Engine team so they can help install and configure the app on your store.

Keywords

Back in stock alerts Shopify appsRestock notification Shopify appsOut of stock waitlist Shopify appsNotify me buttons Shopify appsEmail list growth Shopify appsKlaviyo sync Shopify appsLow stock alerts Shopify appsPrice drop alerts Shopify appsMultilingual stock alerts Shopify appsCustomizable notify buttons Shopify apps24/7 support Shopify appsShopify theme compatibility apps

Key features

  • Automatically sends restock alerts via email when products become available.
  • Customizable "Notify Me" buttons blend seamlessly with your brand design.
  • Syncs collected emails with popular providers like Klaviyo for marketing.

Pricing

Back In Stock! Alert Engine pricing plans

Free Plan
$0 /month
  • 50 Email Alerts
  • Unlimited Subscribers
  • Restock Alert Only
  • Custom Notify Me Button
  • Custom Alert Templates
Basic Plan
$4 /month
  • Unlimited Email Alerts
  • Unlimited Subscribers
  • Restock Alert Only
  • Custom Notify Me Button
  • Import/Export Subscribers
Advanced Plan
$8 /month
  • Unlimited Email Alerts
  • Unlimited Subscribers
  • Low Stock & Restock alert
  • Custom Notify Me Button
  • Import/Export Subscribers
Premium Plan
$12 /month
  • Everything in Basic plan
  • Unlimited Subscribers & Email Alerts
  • Price drop - Restock - Low stock alerts
  • Custom button Product & Collection page
  • Integrations with Klaviyo, Omnisend

Not sure which plan to pick? Discuss Free Plan or Basic Plan plans with us, learn about custom pricing, or get a demo.

Here’s an overview of Back In Stock! Alert Engine costs for each of the plan(s)

The app has 4 pricing plans: 1 free and 3 paid. The free plan offered by Back In Stock! Alert Engine is Free Plan. The paid plans offered by Back In Stock! Alert Engine are Basic Plan, Advanced Plan, Premium Plan.

The details of the plans are outlined below.

  • Free Plan: this plan is free forever, incurring no subscription costs. It offers a wide range of features like 50 Email Alerts, Unlimited Subscribers, Restock Alert Only, Custom Notify Me Button, Custom Alert Templates, Import/Export Subscribers, Email open, delivery & read logs, Swap/Replace Subscriber Product.
  • Basic Plan: the Basic Plan plan costs $4 and comes with a 7-day free trial period. The plan offers a host of features, including Unlimited Email Alerts, Unlimited Subscribers, Restock Alert Only, Custom Notify Me Button, Import/Export Subscribers, Email open, delivery & read logs, Swap/Replace Subscriber Product, Insights.
  • Advanced Plan: the Advanced Plan plan costs $8 and comes with a 7-day free trial period. The plan offers a host of features, including Unlimited Email Alerts, Unlimited Subscribers, Low Stock & Restock alert, Custom Notify Me Button, Import/Export Subscribers, Email open, delivery & read logs, Swap/Replace Subscriber Product, Insights.
  • Premium Plan: the Premium Plan plan costs $12 and comes with a 7-day free trial period. The plan offers a host of features, including Everything in Basic plan, Unlimited Subscribers & Email Alerts, Price drop - Restock - Low stock alerts, Custom button Product & Collection page, Integrations with Klaviyo, Omnisend, Email from your domain, Multi-language, Multi-locations (inventory).

Back In Stock! Alert Engine price summary

Pricing summaryFree plan available. Free trial available.
Total pricing plan(s)4
Number of free plan(s)1
Number of paid plan(s)3
Cost of paid plan(s)$4, $8, $12
Free trial availableYes, for 7 day(s)

Install in your Shopify store We pass your name, email and store domain to the Script Engine team so they can help install and configure the app on your store.

Comparison

Top Back In Stock! Alert Engine alternatives — detailed comparison

The table below highlights the crucial differences between Back In Stock! Alert Engine and similar other Shopify apps based on parameters like ratings, reviews, features, pricing, etc.

Apps
PW Stock NotifyInstall
Add app
General information
Ratings4.9 ★ (24 reviews)5.0 ★ (2 reviews)4.7 ★ (444 reviews)
Developed byScript EnginePRP WebsSwym Corporation
Launch date23 December 202413 April 202313 October 2016
PricingFree, $4/month, $8/month, $12/monthFree, $5/month, $10/month, $19/month$19.99/month, $59.99/month, $99.99/month
ObjectiveNotify customers about restocks, price drops & low stock alertSend automated emails to customers on back-in-stock productsAlerts for items back in stock, out of stock, ready for pre-order, and restock.
CategoriesStock alerts, Email marketingEmail marketing, Stock alertsStock alerts, Email marketing
Key features & highlights
PurposeNotify customers by restock alert when items are back in stock & create an out-of-stock waitlist.Send automated and manual emails to customers about restocked products to increase leads and sales.Send alerts via Email/SMS when products are back in stock. Make preorder/restock lists to increase sales.
Features list
  • Automatically sends restock alerts via email when products become available.
  • Customizable "Notify Me" buttons blend seamlessly with your brand design.
  • Syncs collected emails with popular providers like Klaviyo for marketing.
  • Automatically notify customers via email when products are back in stock.
  • Customize the design of 'Notify Me' popups to match your store’s branding.
  • Allow unlimited customer sign-ups for back-in-stock alerts.
  • Automatically send email and SMS alerts when products are back in stock.
  • Enable preorder alerts to capture demand before inventory is available.
  • Display AI-powered recommendations for similar in-stock products.
Highlights———
User reviews and ratings
Recommended96.2%100.0%94.9%
Pros
  • Quick response times and proactive assistance from the support team.
  • Helps businesses acquire leads and increase sales through timely restock notifications.
  • The app performs as promised, with easy setup and seamless operation.
—
  • Consistently praised for quick, helpful, and professional responses, often resolving issues within hours.
  • Effortlessly integrates with various website themes and requires minimal setup.
  • Proven to boost revenue by capturing customer interest in out-of-stock items and automating alerts.
  • Offers adaptable features, including button modifications and email template adjustments.
  • Functions as intended with minimal bugs, ensuring smooth operation.
  • Proactively addresses customization requests and theme compatibility issues.
  • Easy installation and configuration, even for non-technical users.
  • Provides valuable basic functionality, making it accessible for small businesses.
  • Users report noticeable sales increases, justifying the cost of premium plans.
  • Regularly improves features based on user feedback, such as threshold settings for alerts.
Cons
  • The "Minor UI Issues" con was removed because the reviews overwhelmingly highlight quick resolutions for such issues, aligning the sentiment with the "Effective Customer Support" pro.)
—
  • Some users find the free version too restrictive, especially with signup caps.
  • A few reviews mention limited customization options for email templates.
  • Basic email templates lack multilingual support, affecting non-English users.
Pricing and plans
Total pricing plans443
Free planAvailableAvailableNot available
Free trialYes, for 7 day(s)Yes, for 7 day(s)Yes, for 30 day(s)
Technical information
Rating4.9 ★5.0 ★4.7 ★
Total reviews262447
Launch date23 December 202413 April 202313 October 2016

More details about Back In Stock! Alert Engine

Product description

Back in Stock! Alert Engine is an all-in-one marketing tool to help you recover lost sales. Don't miss out on lost sales with Back In Stock & Restock Alerts, Abandoned carts, price drop, and low stock notifications through Emails. Shows the Notify Me!! button on out of stock products and automatically sends notifications when they get in stock. Creates the out-of-stock & price drop waitlists to see products in demand. Fully customize all notifications, grow your mailing list, and much more !!

AI summary

The app is a back-in-stock notification tool designed to help Shopify stores manage customer alerts for restocked products, ultimately driving sales and engagement. Its core features include seamless integration, easy setup, and real-time notifications, ensuring customers are promptly informed about product availability. A key strength is the highly responsive and proactive customer support team, which quickly resolves issues and provides personalized assistance. The app’s reliability and effectiveness in boosting sales are consistently highlighted. However, minor technical issues, such as placement errors of notification buttons, occasionally arise but are swiftly addressed by the support team. Overall, the app delivers on its promise of enhancing customer communication and store performance with minimal setup effort.

Support

For any questions, concerns, or assistance with Back In Stock! Alert Engine, the dedicated support team is readily available to help. To reach out to the support team, users can send an email to [email protected].

Language support

Details of the Back In Stock! Alert Engine are available in various languages on the Shopify app store, including English.

Back In Stock! Alert Engine support information in a nutshell
Support emailsupport@scriptengine.net
Contact number(s)Not available
FAQ pageNot available
Privacy policyPrivacy details
Language supportEnglish
Integration

The list of top Shopify apps, features or software tools that Back In Stock! Alert Engine seamlessly integrates with are given below.

CheckoutShopify AdminKlaviyo Email Marketingnotify meNotify meOmnisend Email Marketingout of stockpagefly
Developer
NameScript Engine
ProfileSee all apps by Script Engine
WebsiteView developer profile
Address113 - Emporia Business Hub, Dindoli, Surat, GJ, 395010

Installation

How to install Back In Stock! Alert Engine on your Shopify store

1

Send your details

Your name, email and store domain go straight to the Script Engine team.

2

The developer gets in touch

Script Engine contacts you directly to arrange setup for your store.

3

Install at your own pace

Perfect your store’s functionality without the pressure to move on until you’re ready.

Customer reviews

4.8
★★★★★
26 total reviews
525
40
30
20
11

Back In Stock! Alert Engine has an overall rating of 4.8 stars from a total of 26 reviews on the Shopify app store. Of these, 25 (96.2%) are positive, 0 (0.0%) are neutral, and 1 (3.8%) are negative*.

*Ratings above four stars fall under positive review, three star reviews fall under neutral, and anything less than two stars falls under negative.

★★★★★DECABANAfrom Canada · 15 October 2026

Ran into a small issue, but it was resolved very fast. Great tech support and communication. Keep it up guys.

★★★★★Jon's Supplements Limitedfrom United Kingdom · 24 July 2026

Excellent app and customer support. They even fixed an issue caused by another app dev team. Amazing.

★★★★★Heaven's ELIX Kombuchafrom India · 19 July 2026

Such a great app! Meera was a huge help from start to finish. She responded super quickly and was really friendly throughout the whole conversation, which made the process easy and stress-free. We needed a few adjustments made, and she walked us through everything clearly and got it all sorted without any hassle. The support was genuinely top notch — responsive, patient, and focused on actually solving our problem rather than giving canned answers. It's reassuring to know that help is there and handled so well when you need it. Easy to recommend for anyone who values fast, reliable, and friendly support.

★★★★★ToolMartfrom United Arab Emirates · 15 July 2026

The app is easy to setup and the support team is very responsive and helpful.

★★★★★Loom & Storyfrom India · 5 March 2026

App looks good, has a feature to Remind customer of the restock . Helpful

Install in your Shopify store We pass your name, email and store domain to the Script Engine team so they can help install and configure the app on your store.

Performance on the App Store

Rankings, review momentum and install geography, refreshed weekly. Open the full charts for history, benchmarks and keyword detail.

Category rank
#2
Price drop
Total reviews
26
▲ 3 vs 30 days ago
Average rating
4.8 ★
▲ 0.02 vs 30 days ago
Top market
GB
26.6% of installs · ▲ 1.81%

Category & keyword rankings

Position and market share today

KeywordPrice drop#20.4% ▲0.2
Keywordmailing list#50.1% ▲0.0
KeywordLow stock alerts#50.2% ▲0.2
Keywordoberlo alternative#60.7% ▲0.7

Reviews trend

Cumulative reviews · last 6 months

19 → 26 reviews · rating 4.8★ (+0.02)
Ranks #2 in 1 of 10 App Store groups tracked.Open full charts →

Back In Stock! Alert Engine FAQs

How do I install the Back In Stock! Alert Engine Shopify app?
To install Back In Stock! Alert Engine on your Shopify store, click on the Back In Stock! Alert Engine installation link. Login to the Shopify store on which you want to install the app and follow the onboarding process. If you need our expert guidance to help you install Back In Stock! Alert Engine on your Shopify store, then contact us now.
What are the key features of Back In Stock! Alert Engine?

The key features offered by Back In Stock! Alert Engine to Shopify store owners are:

  • Restock Alerts: Send automatic and manual back in stock notifications via Email.
  • Setup Notify Me Buttons in Minutes; Customize Buttons to Match Brand Guidelines.
  • Grow Email Lists & Sync to Email Providers Like Klaviyo.
  • Restock alert, Low stock alert, price drop alert, multilingual tools, and more!
  • Compatible with Almost Every Theme, & Support is Available to Assist 24/7!
Does Back In Stock! Alert Engine integrate with other Shopify apps or tools?

Back In Stock! Alert Engine has not made any official mention of integrating with other Shopify apps or tools. To obtain further information, kindly reach out to their support team or consult your Shopify developer.

Is there a free trial available for Back In Stock! Alert Engine?

Yes, Back In Stock! Alert Engine offers a 7-day free trial on all its paid plans.

What are the pricing plans for Back In Stock! Alert Engine?

The app has 4 pricing plans: 1 free and 3 paid. The paid plans cost $4/month, $8/month, $12/month, and come with a 7-day free trial period.

How does billing work for Back In Stock! Alert Engine?

Back In Stock! Alert Engine uses USD for billing, with recurring and usage-based charges invoiced usually every 30 days.

Can I cancel or upgrade my subscription plan at any time?

Yes, Back In Stock! Alert Engine allows its subscribers to cancel or upgrade their subscription plan at any time.

Does Back In Stock! Alert Engine offer customer support?

Yes, Back In Stock! Alert Engine offers a dedicated support team for any kind of app-related assistance. To reach out to the support team, users can send an email to [email protected].

Is Back In Stock! Alert Engine compatible with my Shopify theme?

Please reach out to their support team at [email protected] to confirm its compatibility with your specific Shopify theme.

Alternatives

PW Stock Notify
by PRP Webs

Send automated and manual emails to customers about restocked products to increase leads and sales.

Free plan · From $5/mo · 7d trial
★ 5.0 (2)
XFlow Back in Stock AlertBuilt for Shopify
by XFlow

Free plan · From $9/mo · 7d trial
★ 4.9 (68)

Most popular

Most popular Shopify apps on the market

Install in your Shopify store We pass your name, email and store domain to the Script Engine team so they can help install and configure the app on your store.

.myshopify.com
4.8★★★★★26 reviews · 96.2% positive

Writing reviews on ShopDigest is coming soon.

  • DE
    DECABANACanada · 15 Oct 2026
    ★★★★★

    Ran into a small issue, but it was resolved very fast. Great tech support and communication. Keep it up guys.

  • JS
    Jon's Supplements LimitedUnited Kingdom · 24 Jul 2026
    ★★★★★

    Excellent app and customer support. They even fixed an issue caused by another app dev team. Amazing.

  • HE
    Heaven's ELIX KombuchaIndia · 19 Jul 2026
    ★★★★★

    Such a great app! Meera was a huge help from start to finish. She responded super quickly and was really friendly throughout the whole conversation, which made the process easy and stress-free. We needed a few adjustments made, and she walked us through everything clearly and got it all sorted without any hassle. The support was genuinely top notch — responsive, patient, and focused on actually solving our problem rather than giving canned answers. It's reassuring to know that help is there and handled so well when you need it. Easy to recommend for anyone who values fast, reliable, and friendly support.

  • TO
    ToolMartUnited Arab Emirates · 15 Jul 2026
    ★★★★★

    The app is easy to setup and the support team is very responsive and helpful.

  • L&
    Loom & StoryIndia · 5 Mar 2026
    ★★★★★

    App looks good, has a feature to Remind customer of the restock . Helpful

  • SP
    SP-SolarprodukteGermany · 19 Jan 2026
    ★★★★★

    Sehr schneller und kompetenter Service. Sehr gute App leicht zu verstehen.

    SE
    Script EngineDeveloper26 Jan 2026

    Thank you for your kind words. We’re grateful for your amazing feedback. It’s our pleasure to provide the best possible service to our customers. :)Do get in touch with us for any queries through in-app chat or email us at [email protected], we are always happy to help you.

  • RO
    RoyceluxeIndia · 31 Dec 2025
    ★★★★★

    Very straight forward to use, the integration is simple and has what you need.Customer service is fast and responsive. Great app, great customer service.

    SE
    Script EngineDeveloper8 Jan 2026

    Thank you very much for your great & wonderful feedback, It puts a big smile on our face. We are grateful to have a client like you. :) :)For any queries, feel free to contact us at [email protected], we are always happy to help you.

  • WU
    wuwuCanada · 10 Dec 2025
    ★★★★★

    great app! I contacted them to help me out with customizing the app for a specific product and they answered very quickly and fixed it!

    SE
    Script EngineDeveloper8 Jan 2026

    Thank you very much for sharing your great & valuable experience with our service and app!! It means a lot to us!!For any queries, feel free to contact us at [email protected], we are always happy to help you.

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