At a glance
A demand forecasting, replenishment, and PO management platform for ecommerce, with SKU-level forecasts, multi-location planning, and 200+ inventory metrics. Integrates with Shopify, Amazon, BigCommerce, and Sage accounting; an Essentials tier targets small Shopify merchants.
Who it fits
Best forMid-market to enterprise ecommerce brands with multi-warehouse, multi-channel complexity and hundreds-to-thousands of SKUs.
Skip ifVery small merchants with simple inventory needs; dropshippers and pure print-on-demand brands; teams wanting a modern, lightweight UI — reviews flag a clunky/complex interface.
Pros & cons
- Accurate demand forecasting with dynamic models
- Automated POs & scheduled reports
- Named support reps (Karen, Lavender, Chan)
- Steep price increases since Sage acquisition
- Shopify API sync issues reported in late 2025
- Seasonal forecasting inconsistent for some merchants
Pricing
Starting price
—
- up to
- —
- Model
- custom
Pricing source: www.inventory-planner.com/pricing
Features
Demand Forecasting (seasonality-aware)
AIForecasts using historical sales / seasonality / marketing activity / spike-dip detection
- AI kind
- statistical/ML forecasting
- plan
- All plans
Open-to-Buy (OTB) Reports
Monthly/weekly buying budget planning
- plan
- All plans
200+ Metrics / SKU-Level Reports
Reports across SKUs, categories, bundles, assemblies, warehouses, suppliers
- plan
- All plans
Container-Aware PO Optimization
Scales POs to container capacity to optimize shipping cost
- plan
- All plans
Multi-Warehouse / Multi-Channel Forecasting
Forecasts and recommends per warehouse and channel
- plan
- All plans
Google Analytics Integration
Combines GA traffic data with sales data to detect pricing/imagery issues
- plan
- All plans
Overstock + Forecasted Lost Revenue Reports
Highlights cash-draining overstock and prioritizes POs by lost-revenue risk
- plan
- All plans
Bundles and Assemblies Forecasting
Forecasts and stocks for bundled and assembled products
- plan
- All plans
Per-Product Custom Forecasting Logic
Per-product control over forecasting algorithms / lead times / stockout corrections
- plan
- All plans
Automated Email/Slack Reports
Scheduled key-report distribution
- plan
- All plans
Revenue-Based Custom Pricing
Quote-based pricing scaled to revenue (entry ~$244/mo per third-party)
- plan
- NOT FOUND (custom)
Shopify integration
Yes — deep native Shopify integration; Shopify App Store; Inventory Planner Essentials launched July 5, 2024 exclusively on the Shopify App Store (per Sage press release dated July 10, 2024); supports Shopify and Shopify Plus
Integrations
External platforms
- Shopify
- Shopify Plus
- Amazon
- Brightpearl
- Cin7
- eBay
- Linnworks
- Microsoft Dynamics 365
- NetSuite
- QuickBooks (Online + Desktop)
- Sage Supply Chain Intelligence
- ShipHero
- WooCommerce
Rating breakdown
Ease of use
8.7/10
[I] inferred
Features
9.0/10
[I] inferred
Value
7.0/10
[I] inferred
Support
8.8/10
[I] inferred
External ratings
G2
4.6/5
Shopify App Store
4.4/5
145 reviews
Trustpilot
4.0/5
151 reviews
What operators say
“Inventory Planner has been an absolute game-changer for us at Campmor; forecasting is incredibly accurate.”
Shopify App Store · 2025
“After the acquisition, our subscription cost was increased threefold.”
Shopify App Store / Trustpilot · 2025
“Something broke with the connection at the end of September 2025 and it has basically rendered IP useless to us.”
Shopify App Store · 2025
Our verdict
The data points to a forked profile. On capability, Inventory Planner is genuinely deep — SKU-level demand forecasting, multi-warehouse / multi-channel planning, container-aware PO optimisation, 200+ metrics, and a first-party integration set covering Shopify, Amazon, NetSuite, QuickBooks, and Sage. For mid-market to enterprise brands managing hundreds-to-thousands of SKUs across locations, the feature set is hard to beat. Two operational caveats sit on top of that capability and matter more than the feature-list praise. First, the 2024 Sage acquisition has produced verified threefold subscription-cost increases for existing customers — Trustpilot and Shopify App Store reviews from 2025 cite the hike with specific numbers, including one Shopify customer paying $4K annually. Second, the late-September-2025 Shopify sync outage rendered the platform "useless" for at least one paying customer — integration health is now a thing to verify in trial, not assumed from the feature page. Pricing is quote-only with no public floor; third-party benchmarks cite ~$245/mo entry, but operator-reported totals land closer to $10K+ annually once add-ons stack (per-warehouse fees, per-1,000-SKU upcharges, third-party onboarding). For very small Shopify merchants, dropshippers, or any team that wants a modern lightweight UI, the cost and the legacy interface make the math hard. G2 (4.6) and Shopify App Store (4.4 / 145) suggest the underlying forecasting still works for customers it works for — but verify the Shopify connection is healthy and read the renewal-pricing clause before signing an annual contract.