aiagentrank.io

Grammarly

Real-time writing assistant — grammar, tone, brand voice, available in every app.

✍️Writing & chatFreemium · from $12

Capabilities

  • grammar
  • tone-detection
  • rewriting
  • brand-voice

Pricing tiers

Free
Free
Casual writers
  • +Grammar + clarity checks
  • +Browser extension
  • +Generative AI prompts
Recommended
Pro
$12/mo
Daily users
  • +Tone detection
  • +Rewrites
  • +Brand voice
  • +Plagiarism check
Enterprise
$15/seat/mo
Companies
  • +Style guide enforcement
  • +Admin + SSO
  • +Custom dictionaries

Pros & cons

Pros
  • +Lives inside every text field in every app — friction-free
  • +Brand voice + style-guide features are best-in-class for marketing teams
  • +Tone detection is genuinely useful, not gimmicky
Cons
  • Generative features feel bolted-on vs a real LLM
  • Suggests changes too aggressively for some writing styles
  • Per-seat pricing on Enterprise adds up fast

Alternatives in Writing & chat