Restock Rocket ‑ Back in Stock vs Slingshot
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026.
The short answer
- Only Restock Rocket lists a free plan. Paid plans start at $19/month for Restock Rocket and $19/month for Slingshot.
- Slingshot lists 4 features Restock Rocket’s listing doesn’t mention, including Back in stock, Email, Notification templates.
Head to head
Free
- · 50 alerts per month
- · Notify me widget
- · Recovered sales tracking
Growth
- · 500 alerts per month
- · Custom email branding
- · Demand Report
- · Double opt-in
Pro
- · Demand Report & subscriber CSV export
- · Everything in Growth
- · Unlimited alerts
Growth
Scale
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureOut of stock shouldn't mean out of business. Every sold-out variant is a lost sale — and a shopper who buys elsewhere. Restock Rocket adds a "Notify me when available" button to sold-out products and emails waiting customers in under 60 seconds of restock — latency measured and displayed on your dashboard.
When a product sells out, interested shoppers leave and most never return. Slingshot captures them before they go and brings them back when you restock. Shoppers sign up in one step, no account needed, through an on-site widget you add in the theme editor. The moment you restock, every waiting shopper gets a branded email linking back to the product.
- Notify me widget appears automatically on sold-out variants — no code
- Restock alerts emailed in under 60 seconds — latency measured & displayed
- See recovered sales & revenue: orders within 72 h of an alert click
- Demand Report: your most-wanted out-of-stock products, exportable to CSV
- No-code on-site signup widget for out-of-stock products
- Automatic branded email the moment a product is back in stock
- Revenue attribution that ties each alert to the sale it earned
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 |  Restock Rocket |  Slingshot |
|---|---|---|
| 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 | Restock Rocket | Slingshot |
|---|---|---|
| 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 | Restock Rocket | Slingshot |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $19/month | $19/month |
| Longest free trial | 14 days | 14 days |
| Plans listed | 3 | 2 |
Listing
| Measure | Restock Rocket | Slingshot |
|---|---|---|
| Shopify category rank | #97(ahead) | #247 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Sep 1, 2026 | Jul 8, 2026 |
| Languages | 1 | 2 |
| Developer | A.N. ADVISORY | nerd with attitude |
FAQ
Restock Rocket and Slingshot: common questions
- Is Restock Rocket or Slingshot cheaper?
- Only Restock Rocket lists a free plan. Paid plans start at $19/month for Restock Rocket and $19/month for Slingshot. 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?
- Restock Rocket lists 1 the others don’t mention, such as Waitlists. Slingshot lists 4 the others don’t mention, such as Back in stock, Email, Notification templates, Performance reports. 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 13, 2026; 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 13, 2026. 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.