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SPECIFICTION
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MerchantWords vs ZonGuru

MerchantWords

merchantwords.com

ZonGuru

zonguru.com

Side by side

FigureMerchantWordsZonGuru
Price from$35/mo$29/mo
Free planYes—
Free trial——
Open source——
WebYesYes
APIYes—
Plans published818
Spec score · Amazon Seller Tools8.1 (#4)7.1 (#11)
Spec score · Keyword Research Tools7.9 (#22)7.1 (#34)
Founded20122016
SecurityMerchantWords says it uses encryption in transit (TLS) and at rest to help protect personal information.ZonGuru says it uses firewalls, data encryption, physical data-center access controls, and information-access authorization controls to safeguard information.
SupportThe product pages advertise 24/7 customer support, while the API Starter plan includes email support and the Pro API plan includes priority support.ZonGuru lists [email protected] and offers a chat contact option; the Helix Enterprise plan includes priority support.

Plans

MerchantWords

  • Demo (API)Free
  • Silver$35 a month
  • Gold$79 a month
  • Starter (API)$79 a month
  • Platinum$149 a month
  • Pro (API)$499 a month
  • Enterprise$749 a month
  • Enterprise (API)$1,499 a month

MerchantWords pricing →

ZonGuru

  • Researcher$49 a month
  • Researcher$348 a year
  • Seller 1-20 SKUs$79 a month
  • Seller 1-20 SKUs$588 a year
  • Seller 21-100 SKUs$159 a month
  • Seller 21-100 SKUs$1,188 a year
  • Seller 101-1000 SKUs$249 a month
  • Seller 101-1000 SKUs$1,908 a year
  • Helix 1 credit$49, paid once
  • Researcher (monthly)$49 a month

ZonGuru pricing →

In their own words

MerchantWords

MerchantWords provides Amazon keyword research, search-volume estimates, competitive analysis, and related e-commerce optimization tools. Classic Search shows estimated monthly volume, 12-month seasonality, related terms, and keyword depth and strength across Amazon marketplaces. ASIN Plus finds keywords a product ranks for when given its ASIN, while Product Tracker follows Amazon keyword rankings daily. Other tools include Collections, Emerging Trends, Keyword Explorer, Keyword Multiplier, Page 1 Products, and Bulk Search. MerchantWords says its keyword data comes from Amazon’s autocomplete search bar, and describes its volume and keyword figures as estimates without guaranteeing absolute accuracy. Collections can be exported as CSV files for listings and ad campaigns. Data is available through REST and MCP; the MCP page lists Claude Desktop, Claude Code, Cursor, VS Code Copilot, and compatible agent frameworks. A free API demo provides real data for a fixed set of terms without an account. Paid plans start at $35/mo. The Silver plan includes 500 searches, while Gold includes 1,000; Platinum and Enterprise list unlimited searches.

Visit merchantwords.com

ZonGuru

ZonGuru has no write-up on Specifiction yet; its figures are above.

Visit zonguru.com