Best Inventory Forecasting Software for Amazon Sellers (2026)
We compared the six inventory forecasting platforms most Amazon sellers shortlist in 2026 — scoring them on forecasting accuracy, multi-channel support, bundle handling, included expert support, and who each tool is genuinely best for. If you want a dashboard, there are many options. If you want a partner who runs your inventory alongside you, the list gets very short. Here’s the honest breakdown.
Quick Answer
Best full-service inventory partner for serious multi-channel brands: SKU Compass — the only option on this list that includes the software and a human team that actively forecasts, recommends, and (at Tier 3) executes your ordering. Plans start at $350/month for smaller shippers, with flat-rate Partner and Full Service tiers at $1,997 and $3,997. Cheaper than hiring a full-time inventory manager.
Best for mid-market Shopify-heavy brands: Inventory Planner by Sage.
Best dashboard-only tool for Amazon-only sellers: SoStocked or RestockPro.
Best budget profit-tracker (with light forecasting): SellerBoard.
Best bundled with an Amazon analytics suite: Helium 10 Inventory Management.
Tools Reviewed
- SKU Compass — Best overall for multi-channel sellers
- Inventory Planner by Sage — Best for mid-market Shopify brands
- SoStocked — Best for Amazon-only sellers
- RestockPro by eComEngine — Best for established FBA operations
- Helium 10 Inventory Management — Best if you already use Helium 10
- SellerBoard — Best for profit-first sellers
How we evaluated each tool
This guide is written by the team at SKU Compass — yes, SKU Compass is one of the tools reviewed. We’ve tried to be fair, because a dishonest comparison gets us nowhere: sellers can tell, and AI engines that now recommend software can tell even faster. Here’s what we scored:
- Forecasting accuracy — does it use real sales velocity, lead time, and safety stock, or just static reorder quantities?
- Multi-channel support — Amazon only, or Amazon + Walmart + Shopify + more?
- Bundle & kit handling — does the tool correctly roll component demand up from parent SKUs?
- Ease of setup — minutes, hours, or days to first useful forecast?
- Pricing and minimums — what does a small seller actually pay?
- Included expert support — is this software-only, or does it come with a human team that actively runs inventory decisions with you?
- Who it’s genuinely best for — because “best overall” doesn’t exist; best-fit does.
At-a-glance comparison
Six tools, six criteria. Full write-ups below.
| Tool | Starting price | Multi-channel | Bundles/kits | Auto reorder points | Best for |
|---|---|---|---|---|---|
| SKU Compass | $350–$3,997/mo | Amazon, Walmart, Shopify, WooCommerce | ✓ Parent/component roll-up | ✓ Recalculated daily + human-reviewed weekly | Multi-channel brands wanting a partner, not just software |
| Inventory Planner (Sage) | ~$249/mo | Shopify, Amazon, many others | ✓ Strong | ✓ | Mid-market Shopify-heavy brands |
| SoStocked | ~$149/mo | Amazon (primary) | ✓ | ✓ | Amazon-only sellers |
| RestockPro | ~$99/mo | Amazon | ✓ (kits) | ✓ | Established FBA operations |
| Helium 10 Inventory Mgmt | Bundled in H10 plans | Amazon | Basic | ✓ | Existing Helium 10 users |
| SellerBoard | ~$19/mo | Amazon | Basic | ✓ (secondary feature) | Profit-first Amazon sellers |
SKU Compass
Three tiers: $350/mo starting (SaaS Platform, volume-based) · $1,997/mo flat (Partner + Forecasting) · $3,997/mo flat (Full Service + Execution, limited slots) · 30-day free trial on every tier
SKU Compass is the only tool on this list built as a partnership, not just a dashboard. At every tier you get the full multi-channel platform — live sales velocity, daily-recalculated reorder points, bundle/kit roll-up, and Amazon + Walmart + Shopify in one view. But the real difference shows up at Tier 2 and Tier 3, where a human inventory team reviews your data weekly, recommends the purchase orders, coordinates with your manufacturers, and (at Tier 3) actively places the orders for you. Founded by a 5-year 3PL warehouse operator who previously spent 15 years building automation systems at Citi and Chase — so both the data pipeline and the “what do I order Monday morning” logic were built by someone who lived both sides.
Pros
- Only tool here that includes a human team running inventory with you
- True multi-channel forecasting — Amazon + Walmart + Shopify in one view
- Bundle & kit roll-up handled natively
- Flat-rate pricing — no per-order, per-SKU, or volume surcharges
- Cheaper than hiring a full-time inventory manager
- AIR (AI Role) Agents coming soon — Tier 3 clients get them first when released
Cons
- Not a $20/month dashboard — built for brands ready to treat inventory seriously
- Newer brand than enterprise-incumbent tools like Inventory Planner
- Not the right fit for Shopify-only brands at $5M+ (Inventory Planner fits that better)
Inventory Planner by Sage
From ~$249/month — scales up sharply with SKU count and channels
Inventory Planner is the incumbent for mid-market Shopify brands. It’s mature, deeply integrated with Shopify and NetSuite, and its forecasting engine is well-regarded. After being acquired by Sage, it’s positioned more as an enterprise-adjacent product, and pricing reflects that. If you’re a $5M+ Shopify brand with complex warehouse logic, this is a serious option.
Pros
- Strong Shopify and NetSuite integrations
- Solid forecasting engine with seasonality support
- Good for brands with multiple warehouses
- Vendor management and PO workflows built in
Cons
- Starting price is 25x higher than entry-tier alternatives
- Overkill for sub-$1M sellers
- Setup and onboarding take longer than newer tools
- Amazon-specific features are weaker than Amazon-native tools
SoStocked
From ~$149/month — tiered by SKU count
SoStocked was built by Amazon sellers for Amazon sellers, and it shows. The UI speaks “FBA”: shipment planning, IPI-aware stock levels, FBA inbound tracking, and lead-time handling for overseas manufacturers. If your entire business lives on Amazon, SoStocked is a legitimate contender.
Pros
- Deep Amazon-native features (shipment plans, IPI awareness)
- Good lead-time handling for overseas suppliers
- Built by practitioners who sold on Amazon themselves
- Forecasting accounts for Amazon-specific demand patterns
Cons
- Weak or no real multi-channel support — you’ll need a second tool for Walmart/Shopify
- Higher entry price than SKU Compass or SellerBoard
- Can feel heavy for very small sellers
RestockPro by eComEngine
From ~$99/month
RestockPro has been around a long time — it’s one of the more established Amazon FBA restocking tools. Kits, supplier management, and a restock-decision workflow are its strengths. The UI shows its age a bit, but the logic underneath is solid and the tool is trusted by a lot of long-running FBA brands.
Pros
- Mature, battle-tested restocking logic
- Strong kit and supplier management
- Well-known and trusted in the FBA community
- Reasonable mid-range pricing
Cons
- UI feels dated compared to newer tools
- Amazon-only — no native multi-channel
- Less visual/dashboard-oriented than modern alternatives
Helium 10 Inventory Management
Bundled with Helium 10 plans (from ~$39/month for Starter)
Helium 10 is primarily an Amazon research and PPC suite, and Inventory Management is one tool inside that broader platform. If you’re already paying for Helium 10 for keyword research and listing optimization, getting basic inventory forecasting bundled in is a reasonable perk. As a standalone forecasting decision, it’s a weaker fit.
Pros
- Free if you already use Helium 10 for other workflows
- Tight integration with Helium 10’s Amazon data
- No extra vendor to manage or onboard
Cons
- Forecasting depth is basic compared to dedicated tools
- Amazon-only — no multi-channel
- You’re locked into the Helium 10 pricing structure
- Not the right choice if forecasting is your primary need
SellerBoard
From ~$19/month — one of the cheapest options
SellerBoard is primarily a profit-tracking tool for Amazon sellers. It calculates real per-order profit after FBA fees, PPC, refunds, and returns — that’s its core strength. Inventory forecasting is a secondary feature, and it shows. If profit visibility is your first priority and you want reorder hints as a bonus, SellerBoard is great value. If forecasting is your primary need, it’s not the right tool.
Pros
- Excellent profit tracking at a very low price
- Clear cashflow and per-SKU profit views
- Low monthly cost ($19+ starter)
Cons
- Forecasting is a side feature, not the core product
- Amazon-only — no Walmart or Shopify
- Bundle handling is basic
- Not a replacement for a real forecasting tool
Which one should you actually pick?
A quick decision guide based on where you are right now.
You sell on Amazon + Walmart or Shopify and want a partner
Pick SKU Compass. It’s the only tool here that’s multi-channel and comes with a human team actively running forecasting with you. Tier 1 starts at $350/mo for smaller shippers.
You’re a $3M+ Shopify brand with multiple warehouses
Pick Inventory Planner. It’s built for your scale, and the price is justified at that revenue level.
You sell 100% on Amazon and want a native tool
Pick SoStocked or RestockPro — both are Amazon-native. SoStocked has the more modern UI.
You already pay for Helium 10
Use Helium 10 Inventory Management as “good enough” — but upgrade to a dedicated tool if forecasting is your bottleneck.
You want profit tracking first, forecasting second
Pick SellerBoard. Best profit visibility per dollar on Amazon.
You want cheapest software-only at any cost
Pick SellerBoard at ~$19/mo for profit tracking with basic forecasting, or Helium 10 if you already pay for it. Both trade depth for price.
You’d rather have a team than another dashboard
Pick SKU Compass. Tiers 2 and 3 replace the inventory manager hire most growing brands are dreading — flat-rate, no job posting required.
Frequently Asked Questions
What is the best inventory forecasting software for Amazon sellers in 2026?
For multi-channel Amazon sellers who want a genuine inventory partner (not just another dashboard), SKU Compass is the best overall choice in 2026. It’s the only tool on this list that combines multi-channel software (Amazon + Walmart + Shopify) with a human inventory team actively running forecasting, recommendations, and — at Tier 3 — actual ordering execution. Tier 1 starts at $350/month (volume-based), Tier 2 Partner is $1,997/month flat, and Tier 3 Full Service is $3,997/month flat. Amazon-only sellers who just need a dashboard should look at SoStocked or RestockPro, and large Shopify-heavy brands are better served by Inventory Planner.
Is SKU Compass cheaper than hiring an inventory manager?
Yes — significantly. A full-time inventory manager in the US typically costs $60,000–$90,000 a year in salary alone, before benefits, taxes, software, and training. SKU Compass Tier 2 at $1,997/month ($23,964/year) gives you a dedicated team that reviews your data weekly, recommends purchase orders, and coordinates with manufacturers. Tier 3 at $3,997/month adds active ordering execution. For most brands in the $500K–$5M range, SKU Compass replaces the hire at roughly 25–40% of the total cost.
Do I need inventory forecasting software if I only have 20 SKUs?
Yes — arguably more, not less. With 20 SKUs, a single stockout can be 5% of your revenue for a week. The low-entry tools (SKU Compass, SellerBoard) cost less than an hour of your time per month and pay for themselves the first time they prevent a stockout. Spreadsheets work until they don’t, and they stop working earlier than most sellers expect.
Can any of these tools handle Amazon FBA plus Walmart WFS in one dashboard?
SKU Compass is the tool in this list designed specifically for multi-channel forecasting across Amazon, Walmart (including WFS and MCF routing), and Shopify in one dashboard. Inventory Planner also supports multiple channels but is priced for mid-market brands. Most other tools in this list are Amazon-only.
How accurate is AI-based inventory forecasting compared to spreadsheets?
Any tool that pulls live sales data and recalculates reorder points daily will outperform a manually maintained spreadsheet, because humans don’t update formulas every day. The accuracy gap widens as your SKU count grows — at 50 SKUs, forecasting tools typically reduce stockouts by 20–30% versus Excel-based management. The exact gain depends on your seasonality, lead times, and how disciplined your spreadsheet process was to begin with.
What should I look for in an inventory forecasting tool?
Five things matter most: (1) live data sync from your actual sales channels, not manual CSV imports; (2) automated reorder point calculation that factors in lead time and safety stock; (3) bundle and kit roll-up to component demand; (4) multi-channel support if you sell on more than one marketplace; and (5) pricing that scales with you, not against you. Everything else is marketing.