Inventory Planner alternatives: pricing, competitors and an honest comparison
Inventory Planner by Sage is a demand forecasting and replenishment layer that sits on top of the system you already run. It is strong at the planning job and it publishes no prices at all. Here is what it really costs, what it does not replace, and the alternatives worth a look, priced from each vendor's own page where they publish one.
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Inventory Planner by Sage is quote-only: Sage publishes no list price, prices on the volume of inventory you manage rather than per seat, and includes unlimited users on every tier. Reviewers consistently call it expensive for a smaller brand. It is also a planning layer, not a system of record, so you still need Shopify, Amazon, NetSuite, Cin7 or similar underneath it. If you want forecasting bundled into the inventory system itself, Katana ($299/mo, forecasting a $249/mo add-on) and Unleashed ($399/mo Core, forecasting a $149/mo add-on) are the usual comparisons, while Cin7 Core ($349/mo) covers broader multichannel ground. If you want the planning brain without the mid-market price tag, that is the gap Storekeeper is being built to fill.
Pricing checked against vendor pages, July 2026. Last updated July 2026.
Inventory Planner and its competitors, on one table
The important column is the last one. These tools are not interchangeable: some replace your inventory system, some only plan on top of it.
| Tool | Entry price | Users | Demand forecasting | Replaces your inventory system? |
|---|---|---|---|---|
| Inventory Planner (Sage) | Quote only; priced on inventory volume | Unlimited on all tiers | Yes, the core of the product | No. Planning layer on top of Shopify, Amazon, NetSuite, Cin7 and similar |
| Katana | $299/mo Core | Unlimited | $249/mo add-on | Yes, for makers and manufacturers |
| Unleashed | $99 Lite / $399 Core / $729 Pro per mo | 3 to 5 included | $149/mo add-on on Core, included on Pro | Yes, for wholesale and light manufacturing |
| Cin7 Core | $349/mo Standard | 5 included | Add-on modules; Standard caps 6,000 orders/year | Yes, broad multichannel coverage |
| Linnworks | Quote only; priced by order volume | Scales with plan | Paid add-on | Yes, order management for high-volume sellers |
| Storekeeper | Early access; planned from $49/mo | Planned team pricing, not per seat | The core of the product: per-SKU forecasts, live reorder points, dead-stock flags | Planning layer, built to read the system you already run |
Why people shop around, and why plenty stay
Inventory Planner is a serious forecasting product with thousands of brands on it. The reasons to look elsewhere are mostly about price and fit, not capability.
Why people look elsewhere
- No published pricing. Sage lists no price. You book a demo to find out, and the third-party estimates floating around the web disagree with each other by more than double, so budgeting before a sales call is guesswork.
- Cost is the most common review complaint. Reviewers repeatedly describe it as pricey, and several note increases after the Sage acquisition, with requests for pricing that scales down to smaller brands.
- It does not stand alone. It reads from your ecommerce platform, ERP or 3PL. If your system of record is a spreadsheet or a basic POS, there is nothing for it to plan on top of.
- Forecast accuracy is a live complaint. Some reviewers say the algorithm still needs work on their catalog, which matters when forecasting is the entire reason you bought it.
Why people stay
- Unlimited users on every tier. Buying, ops and finance can all be in the tool without the seat math that inflates most competitors' bills.
- Purchasing, not just charts. It turns forecasts into replenishment recommendations and draft purchase orders, which is the part that actually saves a buyer time.
- Wide integration list. Shopify, Amazon, WooCommerce, BigCommerce, eBay, NetSuite, Cin7, Brightpearl, QuickBooks, Linnworks, ShipBob, ShipStation and more.
- Built for real complexity. Multi-location planning, supplier management and SKU-level profitability suit a mid-market brand with meaningful capital tied up in stock.
What Inventory Planner actually costs
We will not invent a number. Here is exactly what is knowable in July 2026.
Sage publishes no price for Inventory Planner. Its pricing page states that pricing is based on the volume of inventory you manage, that quotes are given upfront, and that every tier includes unlimited users at no extra cost. Every route on the site leads to a demo booking or a pricing request rather than a checkout.
Third-party sites publish estimates ranging from around $120 a month at the low end to roughly $245 a month as a claimed floor, and one total-cost analysis puts a mid-size brand in the low thousands per year. Those figures come from aggregators rather than Sage, and they contradict each other by more than a factor of two, so treat them as rumor rather than a quote. The only reliable way to know your number is to ask for it and tell them your inventory value and SKU count.
The practical takeaway: Inventory Planner is priced as a mid-market product. If your business is small enough that a few hundred dollars a month for planning alone is hard to justify on top of what you already pay for your inventory system, that is the honest reason to compare alternatives.
Which alternative fits which problem
Start from what you already run. The right option falls out of that.
You need the system, not just the plan
If you are still counting in spreadsheets, a planning layer has nothing to read. Start with a real system: our inventory control software page covers what that looks like, and Cin7 alternatives compares the broad platforms.
You manufacture or assemble
Katana and Unleashed both bundle production with stock, and both sell forecasting as a paid add-on. Compare them on our Katana alternatives and Unleashed alternatives pages.
You want planning without the mid-market bill
The job Inventory Planner does well, deciding what to buy and when, is exactly what Storekeeper is built around: per-SKU demand forecasting, live reorder points and dead-stock flags, priced for smaller teams.
Full disclosure: Storekeeper is in early access. If you need forecasting running this quarter, get a quote from Sage or pick one of the tools in the table above; Inventory Planner is a capable product and unlimited users is a genuinely good deal for a bigger team. Our best inventory management software roundup ranks the options by scenario, and how to forecast inventory demand walks through the method itself. If your buying decisions can wait for a sharper tool, run the free scan at the top of this page and join the list.
Inventory Planner questions, answered
How much does Inventory Planner cost?
What is the best Inventory Planner alternative?
Does Inventory Planner replace my inventory management system?
Is Inventory Planner worth it for a small business?
Does Inventory Planner offer a free trial?
More ways teams use Storekeeper
- Inventory management software for small business Stock tracking, reorder alerts and dead-stock flags for a small team.
- Best inventory management software An honest 2026 comparison: Cin7, Fishbowl, Zoho, Katana, inFlow, Sortly.
- QuickBooks inventory management Where QuickBooks inventory tracking stops, and what to run alongside it.
- Retail inventory software One stock picture across every store, with transfer suggestions.
- Ecommerce inventory management Prevent oversell and sync stock across Shopify, Amazon and marketplaces.
- Warehouse management system Stock intelligence for warehouses and distributors with long lead times.
Forecasting should not need a mid-market budget.
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