Updated April 2026 · Independent Analysis
Surfer SEOvsGrammarly
Grammarly starts at $12/mo, 88% cheaper than Surfer SEO's $99/mo. Both rated 4.8/5 by users.
Surfer SEOvs Grammarly
★ 4.8/5+0.1 vs Grammarly
Only in Surfer SEO
- ✦ Content score optimization
- ✦ SERP analyzer
- ✦ AI-powered writing
From $99/mo(pricier)150K+ users · est. 2017
Try Surfer SEO Free →
Grammarlyvs Surfer SEO
★ 4.7/5-0.1 vs Surfer SEO
Only in Grammarly
- ✦ Grammar checking
- ✦ Plagiarism detection
- ✦ Tone suggestions
✓ Free planFrom $12/mo(cheaper)30M+ users · est. 2009
Try Grammarly Free →Ratings Breakdown
Surfer SEO
4.8/5 avg
G2 Score4.8/5
Capterra Score4.9/5
G2 Rating4.8/5
Grammarly
4.7/5 avg
G2 Score4.7/5
Capterra Score4.7/5
G2 Rating4.7/5
Quick Stats
Feature Comparison
Surfer SEO uniquely offers Content score optimization, SERP analyzer, AI-powered writing. Grammarly uniquely offers Grammar checking, Plagiarism detection, Tone suggestions. Both share 0 features.
Feature
Surfer SEO
Grammarly
Content score optimization
✓
✗
SERP analyzer
✓
✗
AI-powered writing
✓
✗
Keyword research
✓
✗
NLP analysis
✓
✗
Competitor analysis
✓
✗
Content planner
✓
✗
Topical authority maps
✓
✗
Internal linking
✓
✗
Audit tool
✓
✗
Google Docs integration
✓
✗
WordPress plugin
✓
✗
Content calendar
✓
✗
Multi-language
✓
✗
API access
✓
✗
Domain Planner
✓
✗
Grow Flow (AI tasks)
✓
✗
Outline builder
✓
✗
Image audit
✓
✗
Team collaboration
✓
✗
Grammar checking
✗
✓
Plagiarism detection
✗
✓
Tone suggestions
✗
✓
Style improvements
✗
✓
Browser extension
✗
✓
MS Office plugin
✗
✓
Mobile app
✗
✓
Team style guide
✗
✓
Total Features
20
8
Quick Verdict
Independent analysis based on features, pricing, and user ratings
Choose Surfer SEO if you need:
- ✓ Content score optimization
- ✓ SERP analyzer
- ✓ AI-powered writing
- ✓ Keyword research
- ✓ NLP analysis
Choose Grammarly if you need:
- ✓ Grammar checking
- ✓ Plagiarism detection
- ✓ Tone suggestions
- ✓ Style improvements
- ✓ Browser extension
Pricing Comparison
Grammarly starts at $12/mo, 88% cheaper than Surfer SEO's $99/mo.
Surfer SEO Plans
Paid plans only
StandardBest Value
$99/mo- • 360 docs/mo
- • AI Visibility tracking
- • Track 25 AI Prompts
- • Team collaboration
- • Plagiarism checker
Pro
$182/mo- • Everything in Standard
- • Advanced AI tracking
- • White-label reports
- • Priority support
Enterprise
Custom- • Custom volume
- • Dedicated CSM
- • Custom integrations
Grammarly Plans
Free tier available
Free
Free- • Basic spelling & grammar
- • Tone detection
- • Limited suggestions
ProBest Value
$12/user/mo- • Advanced suggestions
- • Full-sentence rewrites
- • Plagiarism detection
Enterprise
Custom- • Team admin
- • SSO
- • Analytics
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