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Grammarly: Grammarly is the one writing tool that genuinely everyone should have.
| Tier | Price |
|---|---|
| Free | Basic grammar, spelling checks |
| Starter | $12/mo (Pro, annual) |
| Pro | $30/mo (Pro, monthly) |
| Enterprise | Custom (Enterprise) |
Pricing verified March 2026.
| Grammarly | Grok | Claude | Perplexity | |
|---|---|---|---|---|
| Price | $12/mo (Pro, annual) | $8/mo | $20/mo (Pro) | $20/mo (Pro) |
| Rating | ★ 4.5 | ★ 4.8 | ★ 4.6 | ★ 4.6 |
| Verdict | Recommended | Situational | Recommended | Best AI Research Tool |
Grammarly is the one writing tool that genuinely everyone should have. The free tier catches errors, Premium adds real intelligence, and Business makes it a team standard. GrammarlyGO adds AI generation without replacing what made Grammarly essential in the first place.
See how Grammarly stacks up against the top alternatives.
Grammarly vs Grok→| Free Tier | ✓ | ✕ | ✓ | ✓ |