EF: Back in Stock Alerts vs Notify Back in Stock Alert
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 EF lists a free plan. Paid plans start at $14.99/month for EF and $3.99/month for Notify Back in Stock Alert.
- Notify Back in Stock Alert lists 11 features EF’s listing doesn’t mention, including Batch send, Custom alerts, Email.
Head to head
Install only
- · Install without a Shopify charge
- · No alerts or design tools included
- · Review plans before starting
Growth
- · 25,000 pending requests
- · 3 storefront starting styles
- · 5,000 emails / month
- · 6 email content blocks
- · Easy color and text controls
Unlimited
- · All storefront starting styles
- · Every design control unlocked
- · Unlimited emails
- · Unlimited pending requests
- · Up to 10 email content blocks
Basic
- · Customizable widget & templates
- · Email + SMS via your own provider
- · Price-drop notifications
- · Unlimited back-in-stock alerts
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureEF: Back in Stock Alerts helps merchants collect customer emails on sold-out product variants and send automatic restock notifications when inventory returns. The app matches each alert to the exact product and variant a shopper requested, so customers receive relevant emails only.
Helps merchants collect customer requests for sold-out products and price-drop alerts. Customers can join a waitlist from the storefront, and the app sends email or SMS notifications when inventory returns or prices change. Merchants can customize the widget, manage templates, review waitlist demand, track sent notifications, and see which products have the most customer interest.
- Collect waitlist emails on sold-out product variants
- Send automatic back-in-stock emails when inventory returns
- Match alerts to the exact product and variant shoppers requested
- Customize storefront alert block designs from the app
- Add a customizable Notify Me widget to sold-out product pages.
- Collect waitlist subscribers for products and product variants.
- Send back-in-stock alerts by email and SMS.
- Send discount alerts to interested shoppers.
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 |  EF |  Notify Back in Stock Alert |
|---|---|---|
| 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 | EF | Notify Back in Stock Alert |
|---|---|---|
| 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 | EF | Notify Back in Stock Alert |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $14.99/month | $3.99/month(ahead) |
| Longest free trial | Not listed | 3 days |
| Plans listed | 3 | 1 |
Listing
| Measure | EF | Notify Back in Stock Alert |
|---|---|---|
| Shopify category rank | #98(ahead) | #310 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Sep 1, 2026 | May 7, 2026 |
| Languages | 1 | 1 |
| Developer | EcomFlow Digital | NovaCore Ventures |
FAQ
EF and Notify Back in Stock Alert: common questions
- Is EF or Notify Back in Stock Alert cheaper?
- Only EF lists a free plan. Paid plans start at $14.99/month for EF and $3.99/month for Notify Back in Stock Alert. 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?
- Notify Back in Stock Alert lists 11 the others don’t mention, such as Batch send, Custom alerts, Email, Low stock. 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.