SK Back In Stock vs SlothRocket: Back in Stock

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 14, 2026 for SlothRocket.

The short answer

  • Only SlothRocket lists a free plan.
  • SK Back In Stock lists 3 features SlothRocket’s listing doesn’t mention, including Email, Multi-language, Waitlists.

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
Aug 3, 2026
Built for Shopify
Not badged
Not badged
Reviews per month
—
—
Detected stores
0active installs
0active installs
Most common store size
—
—
Top countries
—
—
Free options
Free planFree trial
Free planFree trial
Monthly range
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From $0 to $19/month
Plans
Free
FreeFree
  • · 30 restock alert emails per month
  • · Live stock re-verification
  • · Notify me widget included
Pro$19/month
  • · Easy discount code - Shopify integrated
  • · On-brand emails (logo, colour and more)
  • · Quiet hours setting
  • · Reminders for non-buyers
  • · Rich demand insights
  • · Unlimited alerts
Coverage
6 of 6 features100%
3 of 6 features50%
Unique strengths
  • Email
  • Multi-language
  • Waitlists
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Stock alerts
100%6/6
50%3/6
Customization
100%2/2
50%1/2
Notifications
100%4/4
50%2/4
330onlybothonly
SK Back In StockSlothRocket6 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.

Back in Stock lets shoppers sign up to be notified when a sold-out product returns, and emails them the moment it does. Before every send, it re-checks live Shopify inventory, so shoppers are only emailed when the item is truly available again. Merchants see which products and variants are most in demand, so they know what to restock. Emails carry the store's name, logo, colour, and an optional discount code.

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
  • Re-checks live stock before every send, so shoppers don’t get a false alert
  • Send unlimited restock alerts, with automatic reminders to recover more sales
  • Shows demand by product and variant, so you know exactly what to restock
  • On-brand emails with your store's logo, colour, and an optional discount
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
Waitlist demand by product with a recent signups feed
Dashboard: shoppers waiting, alerts sent, recovered salesEmail settings with a live on-brand restock email previewBack in Stock dashboard — restock alerts re-verified live

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 StockSlothRocket
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 StockSlothRocket
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 StockSlothRocket
Free planNot listedYes
Lowest paid monthly planNo monthly plan listed$19/month
Longest free trialNot listedNot listed
Plans listedNot published2

Listing

MeasureSK Back In StockSlothRocket
Shopify category rank#248(ahead)in Stock alerts#305in Stock alerts
Shopify App ChartsNot on this week’s chartsNot on this week’s charts
Built for ShopifyNoNo
LaunchedSep 9, 2026Aug 3, 2026
Languages1English1English
DeveloperSquadkin Technologies Pvt LtdSloth Rocket

FAQ

SK Back In Stock and SlothRocket: common questions

Is SK Back In Stock or SlothRocket cheaper?
Only SlothRocket lists a free plan. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
What features does each app list that the other doesn’t?
SK Back In Stock lists 3 the others don’t mention, such as Email, Multi-language, Waitlists. 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 14, 2026 for SlothRocket; 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 14, 2026 for SlothRocket. 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.