Back in Stock Mailer 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 20, 2026 for Back in Stock Mailer, Nov 4, 2026 for RoboBack In Stock.
The short answer
- Both list a free plan. Paid plans start at $15/month for Back in Stock Mailer and $3/month for RoboBack In Stock.
- Back in Stock Mailer lists 10 features RoboBack In Stock’s listing doesn’t mention, including Auto-alerts, Batch send, Custom alerts.
Head to head
Free
- · 25 restock emails per month
- · CSV waitlist export
- · Customizable email template
- · Optional double opt-in
Basic
- · 1,000 restock emails per month
- · All Free features
- · Email delivery statistics
- · Pause and send per variant
- · Your own sending domain
Pro
- · 5,000 restock emails per month
- · All Basic features
- · Email open and click statistics
- · Stock thresholds and sending waves
- · Templates in multiple languages
- · Variant and collection exclusions
Enterprise
- · 50,000 restock emails per month
- · All Pro features
- · Priority support
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 featureBack in Stock Mailer adds a sign-up block to your product page. When a variant is restocked, everyone waiting gets one email in your design, from your own domain, checked against live stock first. You decide the pace: send in waves, wait for a minimum stock level, or pause a variant and send by hand. Templates per language, Flow triggers and delivery, open and click reports are there when you grow.
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.
- Send restock emails from your own verified domain.
- Let customers confirm their email with optional double opt-in.
- Set stock thresholds and send in waves to match available inventory.
- Customize email templates for each customer language.
- 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 |  Back in Stock Mailer | |
|---|---|---|
| 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 | Back in Stock Mailer | |
|---|---|---|
| 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 | Back in Stock Mailer | |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $15/month | $3/month(ahead) |
| Longest free trial | 14 days | 14 days |
| Plans listed | 4 | 3 |
Listing
| Measure | Back in Stock Mailer | |
|---|---|---|
| Shopify category rank | #276 | Not enough data |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Oct 16, 2026 | Nov 4, 2026 |
| Languages | 2 | 1 |
| Developer | Fliksemblits | Invesare |
FAQ
Back in Stock Mailer and RoboBack In Stock: common questions
- Is Back in Stock Mailer or RoboBack In Stock cheaper?
- Both list a free plan. Paid plans start at $15/month for Back in Stock Mailer 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?
- Back in Stock Mailer lists 10 the others don’t mention, such as Auto-alerts, Batch send, Custom alerts, Manual alerts. RoboBack In Stock lists 1 the others don’t mention, such as Inventory reports. 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 20, 2026 for Back in Stock Mailer, 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 20, 2026 for Back in Stock Mailer, 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.