Grammarly
Surfer SEO
| Feature | ||
|---|---|---|
| Pricing | Free / from $12/mo | From $89/mo |
| Free Plan | ✓ Yes | ✗ No |
| Rating | 4.5 / 5 | 4.4 / 5 |
| Best For | writers, students, professionals, non-native-speakers | content-writers, seo-specialists, agencies, bloggers |
| Founded | 2009 | 2017 |
| Grammar | ✓ | ✗ |
| Spelling | ✓ | ✗ |
| Tone | ✓ | ✗ |
| Clarity | ✓ | ✗ |
| Plagiarism | ✓ | ✗ |
| Browser Extension | ✓ | ✗ |
| Content Editor | ✗ | ✓ |
| Serp Analyzer | ✗ | ✓ |
| Keyword Research | ✗ | ✓ |
| Audit | ✗ | ✓ |
| Ai Writing | ✗ | ✓ |
| Outline Builder | ✗ | ✓ |
| Integrations | ✗ | ✓ |
✓ Grammarly Pros
- Works everywhere
- Clear suggestions
- Tone detection
- Plagiarism checker
✗ Grammarly Cons
- Premium is pricey
- Can over-correct
- Privacy concerns
✓ Surfer SEO Pros
- Real-time content scoring while writing
- NLP-based keyword suggestions
- Integrates with Google Docs and WordPress
- SERP Analyzer for competitive insights
✗ Surfer SEO Cons
- Expensive for occasional use
- Score obsession can lead to unnatural writing
- Limited to on-page SEO only
The Verdict
Grammarly is built for writers and students, with a focus on grammar and spelling. Surfer SEO targets content writers and seo specialists and leads with content-editor and serp-analyzer.
On pricing, Grammarly is the clear winner for budget-conscious users — starting at $12/mo compared to $89/mo for Surfer SEO. That $77/mo difference adds up quickly for growing teams.
Grammarly has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. Surfer SEO requires a paid subscription from day one.
Feature-wise, Surfer SEO offers broader built-in capabilities (7 features vs 6), while Grammarly takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.