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MerchantWords alternatives · Keyword Research

Alternatives to MerchantWords with a one-time purchase

The MerchantWords listing shows no one-time purchase. 4 of the 51 other keyword research tools in this directory can be bought with a one-time purchase.

MerchantWords is a paid product, starting at $35 per month for 500 searches, billed monthly. 1 of them is free or has a free plan.

4 tools · Listings checked up to Oct 23, 2026 · Where the facts come from

How each one differs from MerchantWords

  1. KDSPY

    Browser extension for Amazon book category and keyword research

    • KDSPY starts at $79 one-time, plus tax where it applies. MerchantWords starts at $35 per month for 500 searches, billed monthly.
    • Only KDSPY lists a browser extension.
    • Only MerchantWords lists a web app.
    • KDSPY can be bought with a one-time purchase.
    KDSPY vs MerchantWordsKDSPY pricing and details

  2. Keyword Tool Dominator

    Live autocomplete keywords from Amazon, Google, YouTube and five more

    • Keyword Tool Dominator starts at $9 for 30 days, paid once. MerchantWords starts at $35 per month for 500 searches, billed monthly.
    • Keyword Tool Dominator has a free plan. MerchantWords does not.
    • Only Keyword Tool Dominator lists a browser extension.
    • Keyword Tool Dominator can be bought with a one-time purchase.
    Keyword Tool Dominator vs MerchantWordsKeyword Tool Dominator pricing and details

  3. Publisher Rocket

    Amazon keyword, category and ad research for book authors

    • Publisher Rocket starts at $199 one-time, for lifetime access. MerchantWords starts at $35 per month for 500 searches, billed monthly.
    • Only Publisher Rocket lists macOS and Windows apps.
    • Only MerchantWords lists a web app.
    • Publisher Rocket can be bought with a one-time purchase.
    Publisher Rocket vs MerchantWordsPublisher Rocket pricing and details

  4. Keyword Chef

    Credit-based long-tail keyword finder for bloggers and niche sites

    • Keyword Chef starts at $29 per month for 5,000 credits, or $20 once for 1,200 credits. MerchantWords starts at $35 per month for 500 searches, billed monthly.
    • Keyword Chef can be bought with a one-time purchase.
    • MerchantWords also covers amazon selling.
    Keyword Chef pricing and details

Common questions

Is there an alternative to MerchantWords that you buy once?

Yes. KDSPY, Keyword Tool Dominator, Publisher Rocket and Keyword Chef can be bought with a one-time purchase.

Can you buy MerchantWords once instead of subscribing?

The MerchantWords listing shows no one-time purchase. The listing was checked on Oct 23, 2026 against the pages it cites.

Which of these keyword research tools are free?

Keyword Tool Dominator is free or has a free plan.

When was this checked?

Every listing on this page was checked on Oct 23, 2026, against the pages it cites. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to MerchantWords: the alternatives its listing names first, then the tools that share the most features with it.