Grammarly
MarketMuse
| Feature | Grammarly | MarketMuse |
|---|---|---|
| Pricing | Free / from $12/mo | Free / from $149/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.5 / 5 | 4.3 / 5 |
| Best For | writers, students, professionals, non-native-speakers | content-strategists, seo-teams, agencies, publishers |
| Founded | 2009 | 2013 |
| Grammar | ✓ | ✗ |
| Spelling | ✓ | ✗ |
| Tone | ✓ | ✗ |
| Clarity | ✓ | ✗ |
| Plagiarism | ✓ | ✗ |
| Browser Extension | ✓ | ✗ |
| Content Planning | ✗ | ✓ |
| Topic Modeling | ✗ | ✓ |
| Content Briefs | ✗ | ✓ |
| Competitive Analysis | ✗ | ✓ |
| Content Scoring | ✗ | ✓ |
| Keyword Clustering | ✗ | ✓ |
✓ Grammarly Pros
- Works everywhere
- Clear suggestions
- Tone detection
- Plagiarism checker
✗ Grammarly Cons
- Premium is pricey
- Can over-correct
- Privacy concerns
✓ MarketMuse Pros
- Excellent content gap analysis
- AI-generated content briefs
- Competitive content analysis
- Topic authority scoring
✗ MarketMuse Cons
- Expensive for individuals
- Steep learning curve
- Credits system limits usage
The Verdict
Grammarly is built for writers and students, with a focus on grammar and spelling. MarketMuse targets content strategists and seo teams and leads with content-planning and topic-modeling.
On pricing, Grammarly is the clear winner for budget-conscious users — starting at $12/mo compared to $149/mo for MarketMuse. That $137/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
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.
