Updated March 2026 · Independent Analysis
GrammarlyvsPerplexity AI
Grammarly starts at $12/mo, 40% cheaper than Perplexity AI's $20/mo. Grammarly is rated higher at 4.7/5 vs Perplexity AI's 4.5/5.
Grammarly
AI writing assistant for grammar, clarity, and tone — works across all your apps.
★ 4.7/5Founded 200930M+ users
Try Grammarly Free →
Perplexity AI
AI-powered answer engine that combines real-time web search with LLM reasoning and full source citations.
★ 4.5/5Founded 202210M+ users
Try Perplexity AI Free →⚡ Quick Stats
📊 Ratings Breakdown
Grammarly
4.7/5 avg
G2 Score4.7/5
Capterra Score4.7/5
Overall Avg4.7/5
Perplexity AI
4.5/5 avg
G2 Score4.6/5
Capterra Score4.5/5
Overall Avg4.55/5
⚡ Quick Verdict
Independent analysis based on features, pricing, and user ratings
Choose Grammarly if you need:
- ✓ Grammar checking
- ✓ Plagiarism detection
- ✓ Tone suggestions
- ✓ Style improvements
- ✓ Browser extension
Choose Perplexity AI if you need:
- ✓ Real-time web search
- ✓ Source citations
- ✓ Pro search
- ✓ Image generation
- ✓ File analysis
🔧 Feature Comparison
Grammarly uniquely offers Grammar checking, Plagiarism detection, Tone suggestions. Perplexity AI uniquely offers Real-time web search, Source citations, Pro search. Both share 0 features.
Feature
Grammarly
Perplexity AI
Grammar checking
✓
✗
Plagiarism detection
✓
✗
Tone suggestions
✓
✗
Style improvements
✓
✗
Browser extension
✓
✗
MS Office plugin
✓
✗
Mobile app
✓
✗
Team style guide
✓
✗
Real-time web search
✗
✓
Source citations
✗
✓
Pro search
✗
✓
Image generation
✗
✓
File analysis
✗
✓
API access
✗
✓
Collections
✗
✓
Multiple AI models
✗
✓
Voice search
✗
✓
Chrome extension
✗
✓
Follow-up questions
✗
✓
Academic search
✗
✓
Total Features
8
12
💰 Pricing Comparison
Grammarly starts at $12/mo, 40% cheaper than Perplexity AI's $20/mo.
Grammarly Plans
Free tier available
Free
Free- • Basic grammar
- • Spelling
- • Punctuation
PremiumBest Value
$12/month- • Style suggestions
- • Tone detection
- • Plagiarism checker
- • Full rewrites
Business
$15/month- • Team features
- • Style guide
- • Analytics
- • Priority support
Perplexity AI Plans
Free tier available
Free
Free- • Unlimited quick searches
- • 5 Pro searches/day
- • Basic AI models
ProBest Value
$20/mo- • 300+ Pro searches/day
- • All AI models
- • File analysis
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❓ Frequently Asked Questions
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