Grammarly vs Semrush
A side-by-side comparison of Grammarly and Semrush to help you decide which tool is the better fit for your needs in 2026.
| Feature | Grammarly | Semrush |
|---|---|---|
| Rating | 4.5/5 | 4.5/5 |
| Pricing | Free / $12/mo Premium | From $130/mo |
| Category | AI Writing | AI Marketing |
| Features | 5 listed | 5 listed |
Grammarly
★★★★½ 4.5/5AI WritingAI writing assistant for grammar, clarity, and tone detection. Works everywhere you write.
Pricing
Free / $12/mo Premium
Key Features
- ✓Real-time grammar and spelling correction across browsers and apps
- ✓Tone detection and adjustment suggestions
- ✓Plagiarism checker with billions of web pages scanned
- ✓Brand style guide enforcement for teams
- ✓AI-powered full sentence rewrites and clarity improvements
Pros
- +Works seamlessly across almost every writing platform
- +Free tier is genuinely useful for basic grammar checks
- +Excellent browser extension and desktop app integration
- +Detailed explanations for every suggestion
Cons
- −Premium pricing adds up for individual users
- −Can be overly aggressive with suggestions on creative writing
- −Plagiarism checker only available on Premium and Business plans
Semrush
★★★★½ 4.5/5AI MarketingAll-in-one SEO, content marketing, and competitor analysis platform with AI writing assistant.
Pricing
From $130/mo
Key Features
- ✓Comprehensive keyword research with search volume and difficulty scores
- ✓Competitor domain and backlink analysis
- ✓AI-powered SEO writing assistant for content optimization
- ✓Site audit tool for technical SEO issues
- ✓Position tracking and SERP feature monitoring
Pros
- +Most comprehensive SEO toolset on the market
- +Excellent competitive intelligence and gap analysis
- +Regularly updated database with billions of keywords
- +Strong content marketing toolkit with topic research
Cons
- −Expensive entry price at $130/mo for Starter plan
- −Steep learning curve for beginners
- −Limited projects and keyword tracking on lower tiers
The Verdict
Both Grammarly and Semrush are rated 4.5/5. Your choice should come down to which features and pricing model align better with your workflow.