OOSA: Low Stock Alerts vs SDT • Out of Stock Tracker
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Feb 19, 2026 for OOSA, Oct 13, 2026 for SDT • Out of Stock Tracker.
The short answer
- SDT • Out of Stock Tracker lists 5 features OOSA’s listing doesn’t mention, including Analytics dashboard, Custom reports, Data export.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Starter
- · Tracks up to 10 out of stock products
Growth
- · Tracks up to 50 out of stock products
Scale
- · Tracks up to 200 out of stock products
Enterprise
- · Tracks up to 500+ out of stock products
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureWhen you download OOSA, the app seamlessly integrates with your Shopify store, monitoring your inventory in real-time as customers place orders. You have the power to select inventory benchmarks for notifications, tailoring OOSA to suit your store’s individual needs. You are also able to select which additional metrics you would like to track, giving you access to valuable data that can help you grow your business.
OOS Tracker helps merchants understand how long products are unavailable due to zero inventory. It automatically records out-of-stock events when inventory reaches zero and tracks their duration until restocked. The dashboard prioritises the longest stockouts first, making it easy to focus on the most impactful issues. All products are monitored automatically, with clear visibility into ongoing and past stockouts.
- Track average sales and stock
- Monitor inventory in real time
- Get low stock alerts to your email
- Real-time stockout tracking with live duration timers for every SKU
- Auto-draft or archive products that stay out of stock too long
- Unlimited OOS history archive — keeps data beyond Shopify's 180-day limit
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 |  OOSA |  SDT • Out of Stock Tracker |
|---|---|---|
| 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 | OOSA | SDT • Out of Stock Tracker |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 2 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | OOSA | SDT • Out of Stock Tracker |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | $9/month |
| Longest free trial | Not listed | 14 days |
| Plans listed | Not published | 4 |
Listing
| Measure | OOSA | SDT • Out of Stock Tracker |
|---|---|---|
| Shopify category rank | #685 | #541(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jun 3, 2022 | Jan 30, 2026 |
| Languages | 1 | 1 |
| Developer | OOSA | BeanieOwl |
FAQ
OOSA and SDT • Out of Stock Tracker: common questions
- What features does each app list that the other doesn’t?
- SDT • Out of Stock Tracker lists 5 the others don’t mention, such as Analytics dashboard, Custom reports, Data export, Historical analysis. 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 Feb 19, 2026 for OOSA, Oct 13, 2026 for SDT • Out of Stock Tracker; 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 Feb 19, 2026 for OOSA, Oct 13, 2026 for SDT • Out of Stock Tracker. 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.