Email marketing & Stock alertsBy HEL SG PTE LTD4.8 (1.1K reviews)Built for ShopifyUpdated October 9, 2026
17,658 Shopify stores run Amp Back in Stock & Preorder + today. Shoplist monitors installs, uninstalls, reviews, and listing changes continuously, so you can act on them before your competitors do.
-73% installs vs. the app-store average over the latest 28 days. This can reflect seasonality, category shifts, or competitor movement.
15 of 17,658 detected stores, ranked by traffic. The full list adds filters, contact availability, and CSV export.
17,643 more stores in the full list
A free account unlocks the first 25 with filters and contact availability. Paid plans export all 17,658 to CSV.
430 new detections and 75 re-detections in the last 28 days. Store movement comes from Sonar's storefront scans; listing changes come from the Shopify App Store page.
611 stores stopped showing Amp Back in Stock & Preorder + in the last 28 days.See which, and what replaced them
App Store listing
Detected Oct 5, 2026
SMS priced by destination countryPrice for Shopify Plus Stores: $49 • SMS priced by destination country
SMS priced by destination countryPrice for Shopify Plus Stores: $99 • SMS priced by destination country
SMS priced by destination countryPrice for Shopify Plus Stores: $299 • SMS priced by destination country
Detected Sep 18, 2026
SMS notifications at $0.015 for each sent notificationSMS priced by destination country
SMS notifications at $0.015 for each sent notificationSMS priced by destination country
SMS notifications at $0.015 for each sent notificationSMS priced by destination country
Detected Aug 24, 2026
Amp Back in Stock | PreorderAmp Back in Stock & Preorder +
Capture Sales with Back in Stock Alerts & Preorders. Trusted by the biggest D2C brands since 2011.Capture sales with Back in Stock alerts, Preorders, Wishlists & Low Stocks. Trusted since 2011.
Description rewritten
+6 more changes in this update
Detected Oct 3, 2026
Merchant sentiment summary rewritten
Detected Sep 25, 2026
Merchants say this app reliably recovers lost sales from stockouts with automatic back‑in‑stock emails, SMS, and push alerts that quickly p…
The categories, store sizes, and countries of the stores Sonar detects it on, and the apps most often installed alongside it.
Brands using Amp Back in Stock & Preorder +, grouped by product count
Share of currently detected stores, top five.
Apps merchants weigh against Amp Back in Stock & Preorder +, with their own detected stores and ratings.
Back in stock, out of stock, pre order & restock alerts
Auto-email; popup alerts; restocked notification; SMS; Klaviyo
Preorder, Back in Stock, Low Stock, and Out of Stock Alerts
Send Back In Stock Email and SMS Alerts automatically
Capture sales with Back in Stock alerts, Preorders, Wishlists & Low Stocks. Trusted since 2011.
Hundreds of millions of alerts delivered across 25,000+ brands. Don't let out-of-stock products drive customers away. Auto-notify shoppers the moment items are back in stock via email, SMS, and push. Pre-sell and preorder collections before they drop. Capture demand earlier with Wishlists, and create urgency with Low Stock badges. Replace "Out of Stock" with customizable buttons that match your brand, device, and language. Built for high-SKU catalogs to boost cash flow fast.
Every number on this page comes from public storefront scans and the public Shopify App Store listing. If Shoplist shows Amp Back in Stock & Preorder + on a store, it is there.
Read the data methodologyCompare
Detected stores, ratings, pricing, and momentum side by side.
Developer
Every app HEL SG PTE LTD publishes, with their detected reach.
Rankings
The ten apps gaining the most detected installs in each category.
Directory
Browse every app Shoplist tracks, by category, rating, and reach.
Filter by category, country, and traffic, see contact availability, and get alerted when stores install or leave.
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