Baseline Stock Monitor 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 Oct 13, 2026.
The short answer
- On the Shopify App Store: Baseline Stock Monitor 5.0 from 1 reviews and SDT • Out of Stock Tracker 5.0 from 2 reviews.
- Only Baseline Stock Monitor lists a free plan. Paid plans start at $14.99/month for Baseline Stock Monitor and $9/month for SDT • Out of Stock Tracker.
- Baseline Stock Monitor lists 7 features SDT • Out of Stock Tracker’s listing doesn’t mention, including Analytics, Custom reports, Insights.
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
- · CSV export (active zero-stock items)
- · Duration tracking (“At 0 for”)
- · Manual scans (up to 100 products)
- · Published-only product filter
- · Scan summary cards
- · Search by product, SKU, or vendor
Supporter Plan
- · Everything in Free Plan
- · Scan up to 500 products
- · Vendor exclusion rules
Pro Plan
- · Everything in Supporter Plan
- · Scan 500+ products, for large catalogues
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 featureBaseline Stock Monitor helps merchants prevent lost revenue caused by inventory imbalances. With manual, on-demand scans, you can instantly see which online shop products are at zero stock and exactly how long they’ve been there. If a popular item is out of stock online but still available in another location (like a physical store), you can reallocate inventory before sales are lost.
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.
- Manual inventory scans with per-location zero-stock detection
- Clear event history page for tracking unresolved and resolved items
- Export current zero-stock items with published-only filter via CSV export option
- Option to refine search results with product vendor exclusion list
- 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 |  Baseline Stock Monitor |  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 | Baseline Stock Monitor | SDT • Out of Stock Tracker |
|---|---|---|
| App Store rating | 5.0 ★ | 5.0 ★ |
| App Store reviews | 1 | 2(ahead) |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Baseline Stock Monitor | SDT • Out of Stock Tracker |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $14.99/month | $9/month(ahead) |
| Longest free trial | 7 days | 14 days |
| Plans listed | 3 | 4 |
Listing
| Measure | Baseline Stock Monitor | SDT • Out of Stock Tracker |
|---|---|---|
| Shopify category rank | #354 | #541 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Mar 25, 2026 | Jan 30, 2026 |
| Languages | 1 | 1 |
| Developer | Baseline | BeanieOwl |
FAQ
Baseline Stock Monitor and SDT • Out of Stock Tracker: common questions
- Is Baseline Stock Monitor or SDT • Out of Stock Tracker cheaper?
- Only Baseline Stock Monitor lists a free plan. Paid plans start at $14.99/month for Baseline Stock Monitor and $9/month for SDT • Out of Stock Tracker. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, Baseline Stock Monitor or SDT • Out of Stock Tracker?
- On the Shopify App Store: Baseline Stock Monitor 5.0 from 1 reviews and SDT • Out of Stock Tracker 5.0 from 2 reviews.
- What features does each app list that the other doesn’t?
- Baseline Stock Monitor lists 7 the others don’t mention, such as Analytics, Custom reports, Insights, Inventory tracking. 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 Oct 13, 2026; 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. 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.