Walmart-seller comparison
MerchantWords vs ShelfSEO
Amazon search-volume database. $35/mo entry tier. Amazon-only.
The honest summary
MerchantWords sells an Amazon search-volume database. No Walmart search data.
Pick MerchantWords when:
- You're doing Amazon keyword research at scale
Pick ShelfSEO when:
- You need Walmart search volume — we estimate it from SERP scrapes + cross-platform comparisons
Verified: 5/16/2026 · cross-checked against merchantwords.com. Vendor features + pricing change — verify before purchase.
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