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  1. xpay

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  4. Amp Back in Stock | Preorder

Amp Back in Stock | Preorder

by HEL SG PTE LTD

4.9

(821 reviews)

75/100 · SolidBuilt for ShopifyFree plan available. Free trial available.
Best suited for stores running back in stock and preorder campaigns, especially those using Klaviyo or Mailchimp for customer notifications.

Capture Sales with Back in Stock Alerts & Preorders. Trusted by the biggest D2C brands since 2011. Hundreds of millions of back in stock alerts and notifications delivered reliably across 25,000+ brands. Don't let out of stock products drive customers away. Pre-sell and preorder collections before they drop, and auto-notify shoppers the moment items are back in stock via email, SMS, and push. Replace "Out of Stock" with customizable "Notify Me" and preorder buttons that match your brand, device, and language. Built for high SKU volumes and fast-moving catalogs to boost cash flow fast! Hundreds of millions of back in stock alerts and notifications delivered reliably across 25,000+ brands. Don't let out of stock products drive customers away. Pre-sell and preorder collections before they drop, and auto-notify shoppers the moment items are back in stock via email, SMS, and push. Replace "Out of Stock" with customizable "Notify Me" and preorder buttons that match your brand, device, and language. Built for high SKU volumes and fast-moving 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 alerts - 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.
View on ShopifyCompare the plansSee the scorecard
Who it’s for
Pre-orders
What it moves
Top line

conversion rate and average order value

What it costs
From $19/mo

free plan available · 4 tiers

How it’s supported
75/100

Solid · from 820 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 alerts - 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

Plan fit
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
You start with

10 notifications/month

Unlimited registrations

Follow-up notifications

Notify Me button and form

Multi-language support

Activity reports

Starter
$19/month
Adds

500 notifications/month

Unlimited preorders

SMS notifications

Customizable Notify Me button and form

Growth
$49/month
Adds

2000 notifications/month

Klaviyo & Mailchimp integration

Custom domain support

Delivery policy customization

Delivery window customization

Pro
$99/month
Adds

Unlimited notifications

API access & webhoks

Listed as “Free plan available. Free trial available.”. Plan contents change — confirm on the listing before you install.
Pricing
Free plan available. Free trial available.
Free

Free

Free
10 notifications/month
Unlimited registrations
Follow-up notifications
Notify Me button and form
Multi-language support
Activity reports
Starter

$19/month

Lowest paid plan
500 notifications/month
Unlimited preorders
Unlimited registrations
SMS notifications
Customizable Notify Me button and form
Follow-up notifications
Multi-language support
Activity reports
Growth

$49/month

2000 notifications/month
Unlimited preorders
SMS notifications
Klaviyo & Mailchimp integration
Custom domain support
Delivery policy customization
Delivery window customization
Multi-language support
Pro

$99/month

Unlimited notifications
Unlimited preorders
SMS notifications
Klaviyo & Mailchimp integration
Custom domain support
Delivery policy customization
Delivery window customization
API access & webhoks
Plans as listed on the Shopify App Store. Always confirm current pricing before installing.

75

/ 100
Solid
high confidence

Scored on 820 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.





Computed from the 820 reviews we hold, with 12-month windows measured to 2026-08. This scores the public review record — it is not a review of the software itself, and a low score often means we hold little evidence rather than poor evidence.
Review history
2013–2026 · 820 reviews read
Reviews per year
20137 reviews
201412 reviews
201512 reviews
201617 reviews
201712 reviews
20189 reviews
201922 reviews
202080 reviews
2021101 reviews
2022150 reviews
202396 reviews
202494 reviews
202564 reviews
2026144 reviews
What merchants say

4.9

821 reviews
5★93%
4★4%
3★0%
2★1%
1★2%
Developer replies
23%
of reviews get an answer
Reviewed at 12m+
57%
had used it a year when they wrote
From 820 reviews read. Typical reviewer had used the app for 18 months. Most merchants review in their first month, so this reflects when people write — not how long they stay.
Recent merchant reviews

The newest 8 of 821. Open one to read it in full, with the developer's reply where there is one.

The app has been very useful to our business. Some time ago it stopped working as it wasn't sending out the notifications that something was back in stock but I didn't really chase it up too hard. This week I got the team onto it and they were very responsive and found what was a very simple fix that I hadn't noticed. Nirali in particular was very helpful

This app has done wonders in connecting our brand managers to our customer demand. We recently encountered an anomaly and reached out to their live chat assistant for advice and a possible explanation as to why our alerts were appearing more frequently. I was connected to Leslie H and her attentiveness and personable approach gave me all the answers I was looking for - She even explained things a couple of times over just so I made sure I understood! Exceptional customer service and a pleasure chatting to!

I'm happy with the function of the app, and the price is fair for what it does. I needed some support and ask the support team for assistance with activating the app embed in a new theme we used, and bang! After I got back from lunch, it was done. So I'm overall happy with this app and would recommend it. Leslie Hernandez was the support staff that helped.

Back in Stock works great & integrates easily into Shopify. It's a great resource to notify customers when items that our out of stock are restocked & looks clean on the website. The Back in Stock team is quick to respond to customer inquiries and respond quickly to the Chat Feature. Thank you Leslie for helping update our theme to make it look cleaner online.

Amp Back in Stock is an excellent app with truly outstanding customer support. The support team is fantastic—extremely professional and incredibly fast at resolving any issues. They handled my problem efficiently and communicated clearly throughout the process. I highly recommend Amp Back in Stock to anyone looking for a reliable app backed by top‑tier customer service.

The Back in Stock app automatically does what we have been doing manually for years. It has saved us a lot of time and energy notifying customers when an item is back in stock without us having to do a thing.

I have had a few issues with the app, specifically with pre-orders but the support has been quick and willing to fix any issues I have. I really do like the app, but sometimes small issues are annoying but overall decent app

We’ve had a really positive experience with AMP Back in Stock. What stands out most is their support. The team is very responsive, quick to answer questions, and genuinely helpful when issues come up, which to be honest is not often as the app is very robust. We had a situation that required using a custom domain, and they were great in working through that with us and getting it set up properly. The reporting is also excellent and gives us good visibility into product demand.

Amp Back in Stock | Preorder FAQ

Answered from this app's own listing and its full review record.

Best suited for stores running back in stock and preorder campaigns, especially those using Klaviyo or Mailchimp for customer notifications.

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 820 merchant reviews. The developer has published replies to 187 of 820 reviews. The score reflects what the review record shows, nothing more.

821 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.

Quick facts
At a glance
Merchant rating

4.9 / 5 · 821 reviews


Rating, last 12 months

4.90 from 173 reviews


New reviews, last 12 months

173 (was 68)


Developer replies

187 of 820 reviews


Typical reviewer had used it

18 months


Pricing

Free plan available. Free trial available.


On the App Store since

May 18, 2011


Review history held

2013 – 2026

Integrates with
Shopify Flow
Shopify Admin
Flow
Klaviyo
MailChimp
Zapier

Categories
Pre-ordersStock alerts
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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