Amp Back in Stock & Preorder +
by HEL SG PTE LTD
4.9
(938 reviews)
Best suited for stores using Flow, Klaviyo and MailChimp, which it integrates with and willing to start free and move to $19/mo.
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. 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. more Instant restock alerts via email, SMS & push - recapture buyers automatically Preorder & pre-sell: collect payment before your inventory even arrives Wishlists & low-stock badges - capture demand at every stage of the journey Fully branded Notify Me & Preorder buttons - set up in minutes, no code needed Demand insights: know exactly what to restock, when, and how much to order
Copy from the Shopify App Store listing, unedited.Pre-orders
Top line
conversion rate and average order value
From $19/mo
free plan available · 4 tiers
75/100
Solid · from 849 reviews
What it does
Instant restock alerts via email, SMS & push - recapture buyers automatically
Preorder & pre-sell: collect payment before your inventory even arrives
Wishlists & low-stock badges - capture demand at every stage of the journey
Fully branded Notify Me & Preorder buttons - set up in minutes, no code needed
Demand insights: know exactly what to restock, when, and how much to order
What each step up actually buys you
This developer's plans are separated by features, not by how big your store is — so there is no volume that picks a tier for you. Here is what each one adds over the one below it.
Free
Free
10 notifications/month
Unlimited registrations
Follow-up notifications
Notify Me button and form
Wishlists
Low Stock badges
Starter
$19/month
500 notifications/month
Unlimited preorders
SMS notifications
Wishlists & Low Stock badges
Customizable Notify Me button and form
Growth
$49/month
2000 notifications/month
Klaviyo & Mailchimp integration
Custom domain support
Delivery window and policy customization
Pro
$99/month
Unlimited notifications
API access & webhoks
Pricing
Free
$19/month
$49/month
$99/month
75
/ 100Solid
Scored on 849 merchant reviews we hold for Amp Back in Stock & Preorder +, across five checks. Every figure is computed from those reviews — expand any row to see the counts behind it.
Review history
2013–2026 · 849 reviews read| 2013 | 7 reviews |
|---|---|
| 2014 | 12 reviews |
| 2015 | 12 reviews |
| 2016 | 17 reviews |
| 2017 | 12 reviews |
| 2018 | 9 reviews |
| 2019 | 22 reviews |
| 2020 | 80 reviews |
| 2021 | 101 reviews |
| 2022 | 150 reviews |
| 2023 | 96 reviews |
| 2024 | 94 reviews |
| 2025 | 64 reviews |
| 2026 | 173 reviews |
What merchants say
4.9
22%
of reviews get an answer58%
had used it a year when they wroteRecent merchant reviews
The newest 8 of 938. Open one to read it in full, with the developer's reply where there is one.
Great customer service! Very helpful and the app is great. I love how you can keep up with customers and refer them to different comparable products if the item they are waiting for isn't coming back. Also love using this app to see where demand is and what we should invest and continue producing.
Great app! We've used them for years.
サイトオープン前の無料プランから問合せにクイックにお応えいただき最適な環境を整えていただけました。ご対応誠にありがとうございます。オープン後プランをアップデートしLINE連携して効果を最大化させる期待を込めて。
Amp Back in Stock is an excellent app and great customer service, they are always available and quick! Thanks to Mauro!
Responsive customer service that provided me with the technical solutions I needed to resolve my issue. Thank you to Mauro for his help.
Quick customer service and reliable apps. Thank you :)
Mauro me ha ayudado mucho y lo he resuelto rápidamente. Gracias
Great app. Great support. Will recommend anytime.
Amp Back in Stock & Preorder + FAQ
Answered from this app's own listing and its full review record.
Best suited for stores using Flow, Klaviyo and MailChimp, which it integrates with and willing to start free and move to $19/mo.
There is a free plan, paid plans start at $19/month, and run to $99/month across 4 published tiers. Prices are as listed on the Shopify App Store and can change — confirm before installing.
Amp Back in Stock & Preorder +'s plans are separated by features rather than by store size — none of the tiers is capped on a volume you could state up front. Compare what each step adds over the one below it rather than trying to size yourself into a tier.
On our scorecard Amp Back in Stock & Preorder + rates 75 out of 100 — solid — read from 849 merchant reviews. The developer has published replies to 190 of 849 reviews. The score reflects what the review record shows, nothing more.
938 merchants have reviewed Amp Back in Stock & Preorder +, averaging 4.9 out of 5. We hold the review history from 2013 to 2026, which is what the year-by-year chart on this page is built from.
At a glance
4.9 / 5 · 938 reviews
4.89 from 200 reviews
200 (was 60)
190 of 849 reviews
18 months
Free plan available. Free trial available.
May 18, 2011
2013 – 2026
Will AI shoppers find this store?
Apps like this one convert the traffic you already have. Getting recommended by ChatGPT and Perplexity is a separate problem.
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