EF: Back in Stock Alerts vs RoboBack In Stock
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for EF, Nov 4, 2026 for RoboBack In Stock.
The short answer
- Both list a free plan. Paid plans start at $14.99/month for EF and $3/month for RoboBack In Stock.
- RoboBack In Stock lists 4 features EF’s listing doesn’t mention, including Customer demand, Email, Inventory reports.
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
Free
- · 50 restock alerts per month
- · All features included
- · Unlimited waitlist signups
Pro
- · 1,500 restock alerts per month
- · 14-day free trial
- · All features included
Plus
- · 14-day free trial
- · 5,000 restock alerts per month
- · All features included
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.
Turn sold-out product pages into a waitlist. Add a floating or inline notify-me button with no theme code, or a form block, in your colors. Shoppers confirm their email, so only consenting addresses join. When stock returns, the app rechecks availability and emails each person once, in the storefront's language, with one-click unsubscribe.
- 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
- Floating or inline notify-me button with no theme code, in your colors
- Confirmed opt-in and a single alert per request, with one-click unsubscribe
- Form and emails follow your storefront language, including main EU languages
- Hold alerts until enough units are back, and cap the alerts per restock
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 | |
|---|---|---|
| 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 | |
|---|---|---|
| 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 | |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $14.99/month | $3/month(ahead) |
| Longest free trial | Not listed | 14 days |
| Plans listed | 3 | 3 |
Listing
| Measure | EF | |
|---|---|---|
| Shopify category rank | #98 | Not enough data |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Sep 1, 2026 | Nov 4, 2026 |
| Languages | 1 | 1 |
| Developer | EcomFlow Digital | Invesare |
FAQ
EF and RoboBack In Stock: common questions
- Is EF or RoboBack In Stock cheaper?
- Both list a free plan. Paid plans start at $14.99/month for EF and $3/month for RoboBack In Stock. 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?
- EF lists 2 the others don’t mention, such as Auto-alerts, Inventory tracking. RoboBack In Stock lists 4 the others don’t mention, such as Customer demand, Email, Inventory reports, Waitlists. 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 for EF, Nov 4, 2026 for RoboBack In Stock; 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 for EF, Nov 4, 2026 for RoboBack In Stock. 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.