ReplenishRadar vs RestockPro: Beyond FBA Only

The short version. RestockPro, from eComEngine, is restocking software for Amazon FBA sellers. It forecasts demand, builds purchase orders and tracks shipments. ReplenishRadar does the same for Amazon and adds Shopify to the same forecast. The choice comes down to one question: does a customer ever buy your products anywhere but FBA, such as on your own Shopify store, where RestockPro cannot see the sale?

What RestockPro does

This section comes from the RestockPro page on eComEngine, read on November 3, 2026 (ecomengine.com/restockpro). It calls itself Amazon FBA inventory software to forecast demand, manage restocking and create purchase orders. It lists:

• Restock tips and forecasts, based on days of supply, priority flags and filters.
• Purchase orders, supplier tools and shipment tracking.
• Custom Amazon item labels, with details such as expiry dates.
• A Kit Optimizer for kits, bundles and multipacks that use parts from one supplier.
• FBA fee and margin views, and alerts on aging stock and at-risk SKUs.
• Live chat, phone and email support.

RestockPro Plus adds SKU Economics, with revenue, cost, fee, profit and ROI views. The page says Plus is available now. It also calls Plus the planned upgrade. Check with eComEngine before you count on it.

It links to Amazon through a Selling Partner Appstore connection, and the page lists no other links, so a sale made on any other site never reaches its forecast. It says: "It does not currently support merchant-fulfilled SKUs."

What it costs

It starts at $49 a month. Tiers follow your monthly FBA order count. The page does not show a price per tier. The trial is 30 days with no credit card.

ReplenishRadar Standard is $99 a month at launch pricing through December 31, 2026. It is $119 after that. It covers 2 stores and 2,000 SKUs. Growth is $199 ($249 after) for 5 stores and 20,000 SKUs. Scale is $499. See the pricing page. RestockPro starts lower, and we will not pretend otherwise, so the question is whether the Shopify half of your sales is worth the extra cost to plan well.

What ReplenishRadar does

• We read sales and stock from Amazon and Shopify for each SKU and plan the total demand.
• We sort each SKU by demand pattern: steady, seasonal, patchy or variable. We pick a method that fits. You can see the model and inputs behind each tip.
• We set reorder dates from supplier lead times and minimums. Draft purchase orders wait for your approval.
• On Growth and up, we create the FBA inbound shipment plan in Amazon through the SP-API. On Standard, we prepare an upload file.

We do not offer custom item labels or a kit optimizer. We also do not document the many-country Amazon coverage that RestockPro lists.

Where RestockPro fits better

• Everything you sell goes through FBA, you have no store of your own, and you never plan to open one.
• You sell in several Amazon marketplaces and want all of them covered by one tool, with no gaps between countries.
• You print Amazon item labels with expiry dates or other details.
• You build kits and multipacks from one supplier's parts.
• You want FBA fee and margin views next to restocking.

Where ReplenishRadar is the better fit

• Shopify and Amazon both sell your products. A product that moves 4 a day on your store and 8 on FBA moves 12 a day. RestockPro only sees the 8.
• You want any tip to open up and show the model and inputs behind it.
• One planning tool should cover both your store and FBA, not just FBA.

Main differences

Decision factor	ReplenishRadar	RestockPro
Channels	Shopify and Amazon	Amazon FBA only
Shopify sales in the forecast	Yes	No, Amazon FBA only
FBA inbound plan	Plan made in Amazon (Growth and up)	Not listed (it lists purchase orders and shipment tracking)
Item labels, kit optimizer	No	Yes
Entry price	$99/mo at launch pricing	From $49/mo, by FBA order count
Free trial	14 days	30 days

Bottom line

FBA only? Pick RestockPro. Amazon plus Shopify? Pick ReplenishRadar. Start a 14-day free trial, link both stores, and see whether the combined forecast changes what you would have ordered from FBA sales alone.

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Related Reading:

• Amazon FBA Restock Strategies
• Best Amazon FBA Inventory Tools
• ReplenishRadar vs SoStocked

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Sources

This data was public on the check date shown. Features and prices may change.

• RestockPro page on eComEngine (features, marketplaces, FBA-only note, start price, trial; restockpro.com redirects here; checked November 3, 2026)
• ReplenishRadar pricing and features pages