SK Back In Stock vs StockSignal Studio

Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Sep 10, 2026 for SK Back In Stock, Oct 22, 2026 for StockSignal Studio.

The short answer

  • SK Back In Stock lists 5 features StockSignal Studio’s listing doesn’t mention, including Alert settings, Auto-alerts, Email.

Head to head

Open this comparison in ShoplistFree account. Every feature, store and change, side by side.
Pitch
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Categories
  • Stock alerts
  • Stock alerts
Languages
  • English
  • English
Launched
Sep 9, 2026
Jul 7, 2025
Built for Shopify
Not badged
Not badged
Reviews per month
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—
Detected stores
0active installs
0active installs
Most common store size
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—
Top countries
—
—
Free options
Free planFree trial
Free planFree trial
Monthly range
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$5/month
Plans
Free
Basic$5/month
3-day free trial
  • · Unlimited Email Notifications
Coverage
6 of 7 features86%
2 of 7 features29%
Unique strengths
  • Alert settings
  • Auto-alerts
  • Email
  • Multi-language
  • +1 more
  • Notification button
Stock alerts
86%6/7
29%2/7
Customization
67%2/3
33%1/3
Notifications
100%4/4
25%1/4
511onlybothonly
SK Back In StockStockSignal Studio7 features listed across both App Store listings

Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.

See every feature
Works with also listed by another
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How it sells itself

Turn sold-out pages into restock signups. SK Back in Stock swaps the Add to Cart button for a "Notify Me" button when a product or variant sells out no code needed. Shoppers join the waitlist in one click and receive an automatic email when stock returns. Customize the button, popup, and email templates to match your brand.

Never lose a sale due to out-of-stock products. StockSignal Studio lets customers request restock alerts directly from the product page. When you restock, the app automatically sends emails and/or SMS messages - no manual work required.

Key points
  • Notify shoppers by email the instant a sold-out product is back
  • Match your brand's colors, fonts and email templates instantly
  • Add the Notify Me button in minutes with theme app blocks
  • See which sold-out products to restock next, and sales recovered
  • Email and SMS alerts (SMS requires your own Twilio account & charges apply)
  • Shows a ‘Notify Me’ signup button automatically on out-of-stock product pages
  • Straightforward setup and features - no bloat, fluff, or unnecessary extras
  • Works with all Shopify themes - easy setup with no code or theme edits required
Screenshots
Manage multiple back in stock waitlists per product
Back in stock dashboard with signups and revenueNotify me button and back in stock email alertCustomize the back in stock notify me button
instock-notify-screnshot-1
instock-notify-screenshot-3instock-notify-1instock-notify-screenshot-2

All the numbers

Every figure, side by side

A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.

Showing only the rows where the apps differ.

Adoption

MeasureSK Back In StockStockSignal Studio
Detected storesNot publishedNot published
Net store change, 28 days0estimated0estimated
Stores added, 28 daysNot enough dataNot enough data
Big-brand shareNot enough dataNot enough data
Top store categoriesNot publishedNot published
Top store countriesNot publishedNot published

Reviews

MeasureSK Back In StockStockSignal Studio
App Store ratingNot publishedNot published
App Store reviewsNot publishedNot published
New reviews, 28 daysNot enough dataNot enough data
Reviewers a year or more inNot enough dataNot enough data

Pricing

MeasureSK Back In StockStockSignal Studio
Free planNot listedNot listed
Lowest paid monthly planNo monthly plan listed$5/month
Longest free trialNot listed3 days
Plans listedNot published1

Listing

MeasureSK Back In StockStockSignal Studio
Shopify category rank#248in Stock alerts#233(ahead)in Stock alerts
Shopify App ChartsNot on this week’s chartsNot on this week’s charts
Built for ShopifyNoNo
LaunchedSep 9, 2026Jul 7, 2025
Languages1English1English
DeveloperSquadkin Technologies Pvt LtdTremidap

FAQ

SK Back In Stock and StockSignal Studio: common questions

What features does each app list that the other doesn’t?
SK Back In Stock lists 5 the others don’t mention, such as Alert settings, Auto-alerts, Email, Multi-language. StockSignal Studio lists 1 the others don’t mention, such as Notification button. A feature missing from a listing may still be supported; this compares what each App Store listing says.
Where does this comparison’s data come from?
Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Sep 10, 2026 for SK Back In Stock, Oct 22, 2026 for StockSignal Studio; estimated figures are labeled.

How Shoplist compares apps

Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Sep 10, 2026 for SK Back In Stock, Oct 22, 2026 for StockSignal Studio. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.