Start with FBAlytic for free calculators and fast validation. Add a paid suite only after margin, fees, and ROI look viable.
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Price: Free | Best for: Profit, fees, ROI, break-even, storage, and PPC math before you pay for research tools
Pros: 2026 Amazon fee rates, No signup for calculators, Built for margin-first sellers
Cons: Not a product database — use after math for keyword depth
Open free tools →Price: Paid plans | Best for: Product research, keywords, listings, and PPC after free validation
Pros: Black Box & Xray, Magnet & Cerebro, Listing and rank workflows
Cons: Learning curve, Paid after trial
Get Helium 10 discount →FBAlytic → validation checklist → Helium 10 for keywords and competitors. See product research hub.