BackInStock vs Instock by Pluglify
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 BackInStock, Jul 6, 2026 for Instock by Pluglify.
The short answer
- Only BackInStock lists a free plan.
- Instock by Pluglify lists 3 features BackInStock’s listing doesn’t mention, including Auto-alerts, Low stock, Out of stock.
Head to head
Free
Premium
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureTurn every out-of-stock product into a sales opportunity. BackInStock lets customers subscribe to restock alerts in one click and automatically sends personalized emails as soon as products are back in stock. Recover lost sales, re-engage customers, and use demand insights to sell more while managing your inventory smarter.
Instock 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.
- Automatic storefront widget on out-of-stock product pages.
- Send email or SMS alerts with customizable templates/branding.
- Per-product subscriber lists, and delivery logs.
- Custom alert rules: stock threshold, delay, and business hours.
- 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
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 |  BackInStock |  Instock by Pluglify |
|---|---|---|
| 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 | BackInStock | Instock by Pluglify |
|---|---|---|
| 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 | BackInStock | Instock by Pluglify |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $1/month | No monthly plan listed |
| Longest free trial | 7 days | Not listed |
| Plans listed | 2 | Not published |
Listing
| Measure | BackInStock | Instock by Pluglify |
|---|---|---|
| Shopify category rank | #132(ahead) | #201 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jan 7, 2026 | Jul 6, 2026 |
| Languages | 1 | 1 |
| Developer | PapayWidgets | Pluglify |
FAQ
BackInStock and Instock by Pluglify: common questions
- Is BackInStock or Instock by Pluglify cheaper?
- Only BackInStock lists a free plan. 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?
- BackInStock lists 2 the others don’t mention, such as Back in stock, Customer demand. Instock by Pluglify lists 3 the others don’t mention, such as Auto-alerts, Low stock, Out of 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 for BackInStock, Jul 6, 2026 for Instock by Pluglify; 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 BackInStock, Jul 6, 2026 for Instock by Pluglify. 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.