NL Stock Alert 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 Oct 6, 2026 for NL Stock Alert, Oct 14, 2026 for SlothRocket.
The short answer
- Only SlothRocket lists a free plan.
- NL Stock Alert lists 4 features SlothRocket’s listing doesn’t mention, including Batch send, Email, Notification button.
Head to head
Free
- · 30 restock alert emails per month
- · Live stock re-verification
- · Notify me widget included
Pro
- · 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 counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureWhen a product is sold out, many shoppers just leave. Stock Alert gives them a Notify Me button to leave their email instead. It tracks your inventory in the background, and when the item is back in stock, each customer gets a restock alert by email. That way you recover lost sales from out-of-stock products without emailing anyone by hand.
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.
- Automatic back-in-stock email alerts when inventory levels increase
- Customizable "Notify Me" button and subscription form for product pages
- Branded email templates with your logo, colors, and custom messaging
- Target specific products, collections, or your entire catalog
- 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
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.
Adoption
| Measure |  NL Stock Alert |  SlothRocket |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | NL Stock Alert | SlothRocket |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | NL Stock Alert | SlothRocket |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $19/month |
| Longest free trial | Not listed | Not listed |
| Plans listed | Not published | 2 |
Listing
| Measure | NL Stock Alert | SlothRocket |
|---|---|---|
| Shopify category rank | #128(ahead) | #305 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Mar 4, 2026 | Aug 3, 2026 |
| Languages | 1 | 1 |
| Developer | NeliApps | Sloth Rocket |
FAQ
NL Stock Alert and SlothRocket: common questions
- Is NL Stock Alert 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?
- NL Stock Alert lists 4 the others don’t mention, such as Batch send, Email, Notification button, Notification templates. 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 Oct 6, 2026 for NL Stock Alert, 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 Oct 6, 2026 for NL Stock Alert, 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.