Inventory Aging Pro vs Inventory Surplus
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 Inventory Aging Pro, Oct 14, 2026 for Inventory Surplus.
The short answer
- Both list a free plan. Paid plans start at $19/month for Inventory Aging Pro and $15/month for Inventory Surplus.
- Inventory Aging Pro lists 8 features Inventory Surplus’s listing doesn’t mention, including Analytics, Custom reports, Forecasting.
Head to head
Free
- · Inventory aging
- · Inventory dashboard
- · Reorder signals
- · Up to 250 tracked variants
Starter
- · CSV / XLSX export
- · Custom variant tracking
- · Inventory aging
- · Inventory analytics
- · Inventory dashboard
- · Reorder signals
Growth
- · Automatic discount engine
- · CSV / XLSX export
- · Custom variant tracking
- · Inventory aging
- · Inventory analytics
- · Inventory dashboard
Scale
- · Automatic discount engine
- · CSV / XLSX export
- · Custom variant tracking
- · Inventory aging
- · Inventory analytics
- · Inventory dashboard
Free Forever
Pro Plan
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureMerchants often lose valuable capital to products that remain unsold for months without knowing which inventory needs attention. Our app makes aging and slow-moving inventory easy to identify using last sold dates, sales velocity, stock levels, and inventory insights.
Inventory Surplus helps you turn slow-moving inventory into revenue—faster and more efficiently. Instead of relying on spreadsheets or reactive discounting, the app gives you a clear system to identify surplus products, decide what to do with them, and take action in one place. Moving off Stocky? Stocky stops working August 31, 2026.
- Automatically apply discounts to aging products based on your rules.
- Find unsold products that tie up capital and reduce inventory efficiency.
- Track how long products have remained unsold and identify aging stock.
- Measure product sales velocity to spot declining and slow-moving products.
- Identify slow-moving, excess, and returned inventory in seconds.
- Quickly adapt clearance prices for slow-moving inventory.
- Review dashboards on accelerated velocity.
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 |  Inventory Aging Pro |  Inventory Surplus |
|---|---|---|
| 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 | Inventory Aging Pro | Inventory Surplus |
|---|---|---|
| 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 | Inventory Aging Pro | Inventory Surplus |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $19/month | $15/month(ahead) |
| Longest free trial | 7 days | Not listed |
| Plans listed | 4 | 2 |
Listing
| Measure | Inventory Aging Pro | Inventory Surplus |
|---|---|---|
| Shopify category rank | #682 | #662(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Sep 1, 2026 | May 6, 2026 |
| Languages | 2 | 1 |
| Developer | RK The Techist | Inventory Surplus |
FAQ
Inventory Aging Pro and Inventory Surplus: common questions
- Is Inventory Aging Pro or Inventory Surplus cheaper?
- Both list a free plan. Paid plans start at $19/month for Inventory Aging Pro and $15/month for Inventory Surplus. 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?
- Inventory Aging Pro lists 8 the others don’t mention, such as Analytics, Custom reports, Forecasting, Insights. Inventory Surplus lists 8 the others don’t mention, such as AI-powered rules, Analytics, Bulk editing, Custom pricing. 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 Inventory Aging Pro, Oct 14, 2026 for Inventory Surplus; 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 Inventory Aging Pro, Oct 14, 2026 for Inventory Surplus. 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.