Back in Stock Alert & Preorder vs StockSignal Studio
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 28, 2026 for Back in Stock Alert & Preorder, Oct 22, 2026 for StockSignal Studio.
The short answer
- Only Back in Stock Alert & Preorder lists a free plan. Paid plans start at $9.99/month for Back in Stock Alert & Preorder and $5/month for StockSignal Studio.
- Back in Stock Alert & Preorder lists 22 features StockSignal Studio’s listing doesn’t mention, including Alert settings, Auto-alerts, Batch send.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · 100 email restock alerts/month
- · 20 pre-orders/month, 1 offer
- · Low-stock message on products
- · Multi-language & multi-location
- · Notify me button + templates
- · Restock reminder alerts
Starter
- · 50 pre-orders/month, 3 offers
- · 500 emails/month, own domain
- · Deposits & partial payments
- · Everything in Free +
- · Klaviyo integration
- · Low-stock targeting, styling
Standard
- · 200 pre-orders/month
- · Discounts, delay notices, caps
- · Everything in Starter +
- · Import / export subscribers
- · Markets & customer tags
- · Pre-order analytics
Pro
- · Charge balance on fulfillment
- · Custom feature development
- · Everything in Standard +
- · Invite Back In Stock waitlist
- · Unlimited pre-orders
Basic
- · Unlimited Email Notifications
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureRecover lost revenue from out-of-stock products with automated Back in Stock alerts, Low Stock urgency counters & Preorder. Shoppers join a waitlist via a branded Notify Me button and get instant notifications by Email, SMS or WhatsApp the moment items restock. Set min-inventory triggers, restock reminders, customize notification templates in any language across multiple store locations.
Never lose a sale due to out-of-stock products. StockSignal Studio lets customers request restock alerts directly from the product page. When you restock, the app automatically sends emails and/or SMS messages - no manual work required.
- Multi-channel Alerts: Notify via Email, SMS & WhatsApp when items restock
- Send auto Back-in-Stock alerts via Email, SMS & WhatsApp to boost sales.
- Custom “Notify Me” Button: Show on homepage, collection, or product pages
- Add a custom “Notify Me” widget anywhere on your store — no code.
- Email and SMS alerts (SMS requires your own Twilio account & charges apply)
- Shows a ‘Notify Me’ signup button automatically on out-of-stock product pages
- Straightforward setup and features - no bloat, fluff, or unnecessary extras
- Works with all Shopify themes - easy setup with no code or theme edits required
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 Alert & Preorder |  StockSignal Studio |
|---|---|---|
| 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 Alert & Preorder | StockSignal Studio |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 39 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | 0% | Not enough data |
Pricing
| Measure | Back in Stock Alert & Preorder | StockSignal Studio |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $9.99/month | $5/month(ahead) |
| Longest free trial | 5 days | 3 days |
| Plans listed | 4 | 1 |
Listing
| Measure | Back in Stock Alert & Preorder | StockSignal Studio |
|---|---|---|
| Shopify category rank | #15 | #233 |
| Shopify App Charts | #2 on Rookies in Pre-orders | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Jul 16, 2025 | Jul 7, 2025 |
| Languages | 1 | 1 |
| Developer | Crawlapps | Tremidap |
FAQ
Back in Stock Alert & Preorder and StockSignal Studio: common questions
- Is Back in Stock Alert & Preorder or StockSignal Studio cheaper?
- Only Back in Stock Alert & Preorder lists a free plan. Paid plans start at $9.99/month for Back in Stock Alert & Preorder and $5/month for StockSignal Studio. 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 Alert & Preorder lists 22 the others don’t mention, such as Alert settings, Auto-alerts, Batch send, Custom alerts. 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 28, 2026 for Back in Stock Alert & Preorder, Oct 22, 2026 for StockSignal Studio; 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 28, 2026 for Back in Stock Alert & Preorder, Oct 22, 2026 for StockSignal Studio. 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.