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Compare: SpyFu vs Yoast SEO
A side-by-side analysis to help you find the right tool.
SpyFu
Paid
(Under $50/mo)
Limited free searches available; 30-day money-back guarantee
View Details
Yoast SEO
Freemium
(Free)
Free version is fully functional for core on-page SEO; premium adds redirects, internal linking suggestions
View Details
Key Differences
Pricing Model
SpyFu
Paid
Yoast SEO
Freemium
Budget Tier
SpyFu
Under $50/mo
Yoast SEO
Free
Free Trial
SpyFu
Limited free searches available; 30-day money-back guarantee
Yoast SEO
Free version is fully functional for core on-page SEO; premium adds redirects, internal linking suggestions
Business Type Fit
SpyFu
B2B, B2C, Agency
Yoast SEO
B2B, B2C, D2C / E-commerce
Best For
SpyFu
Teams wanting competitor PPC + SEO keyword overlap research
Yoast SEO
WordPress site owners needing on-page SEO guidance built into the CMS
Pros
SpyFu
Excellent for seeing a competitor's entire organic AND paid keyword history side by side
affordable
historical ad data goes back years
Yoast SEO
Free version covers most on-page SEO needs
deeply embedded in WordPress ecosystem
beginner-friendly traffic light scoring
Cons
SpyFu
Backlink data is weak compared to Ahrefs/Semrush
site audit is basic
primarily useful for competitor research rather than managing your own SEO
Yoast SEO
WordPress/Shopify only — not usable on other platforms
premium features are incremental
Rank Math has overtaken it in some WordPress segments
What They Share
