Inventory Planner Alternative for Shopify

Q: Is Replenish cheaper than Inventory Planner?

Yes, significantly. Replenish starts at $10/mo (with a free alerts tier), while Inventory Planner's Basic plan starts at around $99/mo and their Plus plan runs $245+/mo. For a small-to-mid Shopify store, Replenish delivers the same core toolkit — forecasting, reorder recommendations, purchase orders, ABC/XYZ — at a fraction of the price.

The short version

The 30-second verdict

Choose Replenish if…

You sell on Shopify only, want reorder recommendations you can actually audit — every number comes with the math — and $99+/mo is more than you need to spend. From $10/mo with a 14-day free trial.

Choose Inventory Planner if…

You sell across multiple channels (Shopify + Amazon + wholesale), have a large catalogue, and need enterprise-grade multi-channel demand planning. The higher price ($99–$245+/mo) is justified by the multi-channel depth.

Side by side

Feature comparison

The honest version — including where Inventory Planner leads.

	Replenish	Inventory Planner
Starting price	$10/mo	~$99/mo (Basic)
Free trial	✓ 14 days, all plans	Trial available
Shopify-only focus	✓ purpose-built	Multi-channel (Shopify + Amazon + more)
Demand forecasting	✓	✓
Reorder recommendations	✓	✓
Explains why (shows the math)	✓ core focus	Less emphasis
Purchase orders	✓	✓
ABC/XYZ analysis	✓	✓
Multi-channel (Amazon, wholesale, etc.)	Shopify only	✓ core strength
Enterprise / large catalogue depth	Transparent for SMB	✓ stronger
Maturity & review base	Newer	✓ established, Sage-owned
Best fit	Small–mid, Shopify-only	Multi-channel / enterprise

As of mid-2026. Inventory Planner pricing and plans evolve — verify current details on their App Store listing before deciding. We’ve marked rows conservatively rather than overstate differences.

Honest trade-offs

Where each one genuinely wins

Replenish wins on…

Price. Starts at $10/mo with a free alerts tier — Inventory Planner’s Basic plan alone is roughly 10× more expensive.
Explainability. Every recommendation shows the velocity, lead time, safety buffer, and current stock that produced it. No black box, no magic numbers.
Shopify-first simplicity. Built specifically for Shopify stores. No multi-channel complexity you don’t need; faster setup; easier onboarding.
A complete toolkit at the lower price. Suppliers, purchase orders, ABC/XYZ, bundles, multi-location, stockout alerts, and dead stock detection are all included — no features locked behind premium tiers.
Stocky migration focus. Purpose-built for merchants leaving Stocky, with a migration template and AI-assisted CSV import.

Inventory Planner wins on…

Multi-channel demand planning. If you sell on Shopify, Amazon, and wholesale simultaneously, Inventory Planner is purpose-built for that complexity. Replenish is Shopify-only.
Enterprise catalogue depth. For very large product catalogues with complex replenishment logic across many channels, Inventory Planner’s engine is the stronger choice.
Maturity and backing. Acquired by Sage — a global enterprise software company. Long track record, well-resourced team, established App Store review base.
Integrations. Broader integration set for multi-platform merchants and ERP-connected operations.

FAQ

Common questions

Is Replenish cheaper than Inventory Planner?

Yes, significantly. Replenish starts at $10/mo with a free alerts tier, while Inventory Planner’s Basic plan starts at around $99/mo and their Plus plan runs $245+/mo. For a small-to-mid Shopify-only store, Replenish delivers the same core toolkit — forecasting, reorder recommendations, purchase orders, ABC/XYZ — at a fraction of the cost.

What is the main difference between Replenish and Inventory Planner?

Inventory Planner (now owned by Sage) is a multi-channel enterprise suite designed for large catalogues across Shopify, Amazon, and other platforms. Replenish is Shopify-only, lower-priced, and built around explainability: every reorder recommendation shows the velocity, lead time, and safety buffer that produced it. Choose Inventory Planner for true multi-channel operations; choose Replenish for Shopify-first stores that want transparent, affordable forecasting.

Can I switch from Inventory Planner to Replenish?

Yes. Your products, inventory levels, and full sales history live in Shopify and sync to Replenish automatically — you don’t lose historical data. You’ll need to re-enter or import supplier lead times and min/max settings. Replenish offers AI-assisted CSV import to speed that up. See our migration guide.

Which is better for a small Shopify store?

For a small Shopify-only store, Replenish is the better fit. The price difference alone is substantial ($10–$59/mo vs $99–$245+/mo), and Replenish is purpose-built for Shopify with explainable recommendations designed for small teams. Inventory Planner’s multi-channel depth is genuinely powerful — but it’s overkill if you only sell on Shopify.

Try the affordable, explainable one free

Replenish starts at $10/mo — a fraction of Inventory Planner’s price. Install free, see your first reorder recommendations with the reasoning, within 24 hours.

Install Replenish on Shopify

From $10/mo · 14-day free trial · no credit card required during trial

Disclosure: this comparison is published by the team behind Replenish. We’ve tried to represent Inventory Planner fairly, including where it’s the stronger choice — but you should evaluate both yourself on the Shopify App Store. Pricing and features were accurate as of mid-2026 and may have changed.