Instock by Pluglify vs StockSignal Studio
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Jul 6, 2026 for Instock by Pluglify, Oct 22, 2026 for StockSignal Studio.
The short answer
- Instock by Pluglify lists 4 features StockSignal Studio’s listing doesn’t mention, including Alert settings, Auto-alerts, Low stock.
Head to head
Basic
- · Unlimited Email Notifications
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureInstock keeps your storefront clean by automatically managing sold-out products. Hide them from collection pages, fade them while keeping product pages live, move them to the bottom, or show a Sold out badge. Get low-stock email alerts when inventory reaches your threshold. Simple setup, no code edits, and built with a Shopify theme app extension.
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.
- Hide sold-out products from collection pages automatically
- Fade sold-out items, move them down, or show a Sold out badge
- Get low-stock email alerts when inventory hits your threshold
- 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 |  Instock by Pluglify |  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 | Instock by Pluglify | StockSignal Studio |
|---|---|---|
| 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 | Instock by Pluglify | StockSignal Studio |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | $5/month |
| Longest free trial | Not listed | 3 days |
| Plans listed | Not published | 1 |
Listing
| Measure | Instock by Pluglify | StockSignal Studio |
|---|---|---|
| Shopify category rank | #201(ahead) | #233 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jul 6, 2026 | Jul 7, 2025 |
| Languages | 1 | 1 |
| Developer | Pluglify | Tremidap |
FAQ
Instock by Pluglify and StockSignal Studio: common questions
- What features does each app list that the other doesn’t?
- Instock by Pluglify lists 4 the others don’t mention, such as Alert settings, Auto-alerts, Low stock, Out of stock. StockSignal Studio lists 2 the others don’t mention, such as Back in stock, Notification button. 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 Jul 6, 2026 for Instock by Pluglify, 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 Jul 6, 2026 for Instock by Pluglify, 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.