Comparison · 2026

Grammarly vs Surfer SEO

Both are AI writing tools, but they fit different needs. Here's how they stack up side by side.

At a glanceGrammarlySurfer SEO
Price$12/mo$79/mo
Free tierYesNo
Best foreditingseo agencies
Rating★ 4.6★ 4.4
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The verdict

If price is your main concern, Grammarly is the cheaper option at $12/mo. Overall, Grammarly has the higher user rating (4.6/5) and is the safer pick if you care most about quality.

Choose Grammarly if…

  • Best-in-class grammar
  • Works everywhere
  • Strong free tier

Choose Surfer SEO if…

  • Best on-page SEO
  • Content score
  • Agency features