Preorder, Back in stock Duck vs Restockly
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 9, 2026 for Preorder, Back in stock Duck, Oct 13, 2026 for Restockly.
The short answer
- Only Preorder, Back in stock Duck lists a free plan.
- Preorder, Back in stock Duck lists 11 features Restockly’s listing doesn’t mention, including Customer demand, Email, Inventory reports.
Head to head
- United States
- United Kingdom
- India
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
FREE
- · 24/7 human-only live chat support
- · 50 back in stock emails per month
- · Automatic back in stock alerts
- · Customize buttons, signup forms, emails
- · Preorder confirmation emails
- · UNLIMITED Prerorders. No transaction fee
ESSENTIALS
- · 2026 special: $3/mo for 2 months
- · 24/7 human-only live chat support
- · 500 back in stock emails per month
- · ALL FEATURES included
- · Grow Shopify and Klaviyo mailing lists
- · Inventory locations, Markets, Languages
PRO
- · 2026 special: $11/mo for 2 months
- · 24/7 human-only live chat support
- · 3,000 back in stock emails per month
- · ALL INTEGRATIONS: WhatsApp, API, etc.
- · UNLIMITED Preorders. No transaction fee
- · WhatsApp alerts with logo & brand name
ELITE
- · 2026 special: $35/mo for 2 months
- · 24/7 human-only live chat support
- · All features and integrations included
- · Dedicated CSM (Customer Success Manager)
- · UNLIMITED Prerorders. No transaction fee
- · UNLIMITED back in stock alerts
0.15 usd / sent
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureRecover lost sales from your sold out pages with Pre-orders, and back in stock alerts. We've made our App super easy to get started - setup only takes a few minutes. Our 24/7 human-only live-chat support team helps you right away if you need any assistance.
Restockly sends automatic WhatsApp messages to your customers when out-of-stock products become available again. When a product runs out of stock, a notification form appears on the product page where customers can enter their WhatsApp number. the app tracks monitors your inventory automatically.
- Add a Notify me when available button in minutes. Create out of stock waitlists.
- Instant, automatic Restock alerts on Email and WhatsApp.
- Customize the Notify me button to match your theme and language
- Send back in stock notifications for specific sizes and variants
- Light & Dark mode — Match your store's theme with light, dark, or auto color mod
- Multiple form positions — Replace the Sold Out button, or place the form above o
- Customizable notification form — Choose from 4 templates (Classic, Minimal, Bold
- Bilingual messaging — Automatically sends messages in English or Spanish based o
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 |  Preorder, Back in stock Duck |  Restockly |
|---|---|---|
| Detected stores | 1,198 | Not published |
| Net store change, 28 days | +16 | 0 |
| Stores added, 28 days | 27 | Not enough data |
| Big-brand share | 17% | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Not published |
| Top store countries | United States, United Kingdom, India | Not published |
Reviews
| Measure | Preorder, Back in stock Duck | Restockly |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 544 | Not published |
| New reviews, 28 days | 15 | Not enough data |
| Reviewers a year or more in | 13% | Not enough data |
Pricing
| Measure | Preorder, Back in stock Duck | Restockly |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $9/month | No monthly plan listed |
| Longest free trial | 7 days | Not listed |
| Plans listed | 4 | 1 |
Listing
| Measure | Preorder, Back in stock Duck | Restockly |
|---|---|---|
| Shopify category rank | #7 | #262 |
| Shopify App Charts | #10 in Pre-orders | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Mar 10, 2023 | May 11, 2026 |
| Languages | 1 | 1 |
| Developer | Peppyduck Ventures LLP | REVISA |
FAQ
Preorder, Back in stock Duck and Restockly: common questions
- Is Preorder, Back in stock Duck or Restockly cheaper?
- Only Preorder, Back in stock Duck 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?
- Preorder, Back in stock Duck lists 11 the others don’t mention, such as Customer demand, Email, Inventory reports, Inventory tracking. Restockly lists 1 the others don’t mention, such as Sales forecasting. 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 Nov 9, 2026 for Preorder, Back in stock Duck, Oct 13, 2026 for Restockly; 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 Nov 9, 2026 for Preorder, Back in stock Duck, Oct 13, 2026 for Restockly. 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.