Inventory Planner vs Slimstock (2026): which should you pick?
As of Nov 13, 2026, Inventory Planner and Slimstock share a 1.8 GPA, neither has a free plan and their prices can't be set side by side, so the choice depends on whether you care more about platforms, where Inventory Planner grades higher, or features, where Slimstock does.
Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 12, 2026 and Nov 13, 2026 by ToolGPA
They get the same grade on value for money, the free plan and ease of use.
Price, platforms and features side by side. The table says where each price was read and when.
Inventory Planner
SKU-level demand forecasting and replenishment planning
Paid
Which one is for you
Pick Inventory Planner if
- Fits if you already run Shopify, Brightpearl or similar and need better reorder planning
- Works for teams with many SKUs to forecast
Look elsewhere if
- Not for you if you want to start this week, as go-live takes 5 to 6 weeks
- Skip it if you want a price, as it asks for a request
- Too light for an inventory system, since stock and orders live in another platform
- Skip it if you want to try free, as no trial is listed
Pick Slimstock if
- Fits if you run a mid-sized or large distributor or retailer with a planning team
- Makes sense if you want one vendor for forecasting, replenishment and S&OP
Look elsewhere if
- Skip it if you want a price on the page, as none is published
- Skip it if you are a small shop that only counts stock
- Watch out: no free plan or trial is shown, only demos
- Not for you if you want self-serve sign-up
How we grade them
| 1.8GPAInventory PlannerWeak | 1.8GPASlimstockWeak | |
|---|---|---|
| Value for money | CNo price is published; cost is based on the volume of inventory managed and requested through a form. Unlimited users are included. | CNo price is published; buyers book a demo or call a local office, so there is no figure to set against this category's $91 middle price. |
| Free plan and trial | FNo free plan and no trial on record in the listing, and a money-back guarantee would not count as one. | FNo free plan or trial; it is sold by demo only. |
| Features | CForecasting, replenishment and purchase orders, multi-location planning and reporting. It plans and buys, but stock and orders stay in the connected platform. | BInventory optimisation, demand management, supply chain planning, commerce management and data management. The listing shows no gap in the core work. |
| Ease of use | CNo store rating on record. The vendor quotes 5 to 6 weeks to go live. | CA planning platform sold through offices takes a rollout, and no store rating is on record. |
| Platforms and integrations | BWeb only, with Shopify, Amazon, WooCommerce, eBay, BigCommerce, Brightpearl, Cin7 and QuickBooks listed. | CWeb only, and the pages we read name no integrations. |
| Best for | SKU-level forecasts and purchase orders | supply chain planning for larger companies |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Inventory Planner and Slimstock. How we grade
Where they differ
- Inventory Planner also covers amazon selling.
In commonWebAI featuresReportsInventory
At a glance
| Inventory Planner | Slimstock | |
|---|---|---|
| Pricing | Paid | Paid |
| Starts at | Not published | Not published |
| Free plan | None | None |
| Free trial | None listed | None listed |
| Web | ||
| Made by | Inventory Planner | Slimstock |
| Price read from | Not confirmed | Not confirmed |
| Checked | Nov 12, 2026 | Nov 13, 2026 |
Worth knowing
Inventory Planner
- No prices are published; the pricing page says cost is based on the volume of inventory managed and asks for a request.
- Unlimited users are included at no extra cost, per the pricing page.
- The vendor quotes 5 to 6 weeks to go live, so onboarding is not instant.
- It plans and generates purchasing; stock and orders are held in the connected platform.
Slimstock
- No pricing is published; the site directs buyers to book a demo or contact a local office.
- The platform covers far more than stock control, so it suits larger planning teams more than small shops.
- The vendor's pages are available in 11 languages and it lists offices in 28 countries.
Key features
Inventory Planner
- Demand forecasting
- Predicts what customers will buy, SKU by SKU, as the basis for purchasing decisions.
- Replenishment and purchase orders
- Suggests what to order, when and where, and builds purchase orders from the recommendations.
- Multi-location planning
- Tracks stock across all warehouses and stores to avoid over-ordering.
- Inventory reporting and analytics
- Planning metrics from top level down to SKU, with retail analytics that match marketing spend to what is in stock.
- Sage Copilot and Sage AI
- An AI assistant for retail insights and the AI behind the recommendations, per the site's feature menu.
Slimstock
- Inventory optimisation
- Inventory pages cover optimisation, auto replenishment, multi-echelon optimisation, allocation, network balancing and open-to-buy.
- Demand management
- Demand forecasting, demand planning, demand sensing and forecasting by customer or channel.
- Supply chain planning
- Supply planning, production planning and scheduling, S&OP, integrated business planning and scenario planning.
- Commerce management
- Price management, promotion planning, assortment and range management and merchandise planning sit in the same platform.
- Data management
- A data framework, agentic data cleaning and process orchestration are listed for preparing the data the planning runs on.
Plans
Inventory Planner
Pricing could not be confirmed. See inventory-planner.com.
Slimstock
Pricing could not be confirmed. See slimstock.com.
Common questions
Which is cheaper, Inventory Planner or Slimstock?
As of Nov 13, 2026, Inventory Planner has no price we could confirm, and Slimstock has no price we could confirm.
Which has a free plan, Inventory Planner or Slimstock?
As of Nov 13, 2026, neither Inventory Planner nor Slimstock has a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.