RestockGuard ‑ Stock Alerts 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 RestockGuard lists a free plan. Paid plans start at $9/month for RestockGuard and $19/month for Slingshot.
- RestockGuard lists 4 features Slingshot’s listing doesn’t mention, including Inventory tracking, Out of stock, Pre-orders.
Head to head
Free
- · Automated Back-in-Stock Alerts
- · Basic Dashboard & Analytics
- · Up to 100 Subscribers
- · Widget Customisation
Starter
- · CSV Subscriber Export
- · No RestockGuard Branding
- · Product Variant Notifications
- · Standard Support
- · Up to 1,000 Subscribers
Growth
- · CSV Subscriber Export
- · No RestockGuard Branding
- · Priority Support
- · Product Variant Notifications
- · Up to 5,000 Subscribers
Premium
- · CSV Subscriber Export
- · No RestockGuard Branding
- · Priority Support
- · Product Variant Notifications
- · Unlimited Subscribers
Growth
Scale
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureEvery sold-out product is lost revenue unless you capture demand. RestockGuard automatically collects customer emails on out-of-stock products and brings them back the moment stock returns. Notify shoppers only when their exact variant is available, improve conversion rates, and recover missed sales with no manual work.
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.
- Capture demand on sold-out products with a “Notify Me” widget
- Send automatic back-in-stock alerts to bring customers back to buy
- Variant-level notifications for size, colour and product options
- Track recovered revenue and conversions in your dashboard
- 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 |  RestockGuard |  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 | RestockGuard | 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 | RestockGuard | Slingshot |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $9/month(ahead) | $19/month |
| Longest free trial | 14 days | 14 days |
| Plans listed | 4 | 2 |
Listing
| Measure | RestockGuard | Slingshot |
|---|---|---|
| Shopify category rank | #294 | #247(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 7, 2026 | Jul 8, 2026 |
| Languages | 1 | 2 |
| Developer | GuardApps | nerd with attitude |
FAQ
RestockGuard and Slingshot: common questions
- Is RestockGuard or Slingshot cheaper?
- Only RestockGuard lists a free plan. Paid plans start at $9/month for RestockGuard 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?
- RestockGuard lists 4 the others don’t mention, such as Inventory tracking, Out of stock, Pre-orders, Waitlists. Slingshot lists 2 the others don’t mention, such as Customer demand, 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 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.