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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.

Grammarly logo
Grammarly
✓ verifiedFreemium

Widely used AI writing assistant offering grammar, tone and rewrite suggestions plus generative AI across apps; free tier available.

54M visits/mo
GPTZero logo
GPTZero
✓ verifiedFreemium

AI-content detector aimed at educators, adding plagiarism, grammar and citation checks with claimed high accuracy.

17M visits/mo7.3K saves
Pricing
One-time purchase: $9.99
Free: $0
Pro: $12/member/mo billed annually (or $30/mo)

No public pricing

Core features
  • On-device transcription using CoreML
  • Push-to-Talk (Hold key to record, release to transcribe)
  • Instant text insertion into any active app
  • AI Skills for translation, grammar fixing, and custom prompts
  • Support for 25 European languages with auto-detection
  • Local history and search for all transcriptions
  • Works completely offline without accounts or tracking
  • Real-time grammar, spelling and clarity checks
  • Full-sentence and paragraph rewrites
  • Tone and brand-style suggestions
  • Generative AI text with prompts
  • AI detector and humanizer agents
  • Works across apps, browsers and documents
  • Detects AI text from major LLMs (ChatGPT, Claude, Gemini, Llama)
  • Sentence-level highlighting with explanations
  • Plagiarism and grammar checking
  • Hallucination and citation verification
  • Authorship/writing-process verification
  • Integrations for Chrome, Google Docs, Canvas and API
Use cases
  • Dictating coding instructions directly into IDEs
  • Real-time translation of spoken words into other languages
  • Hands-free writing and emailing with automated grammar correction
  • Quickly searching through a history of past voice-to-text entries
  • Writing clear, error-free documents and emails
  • Adjusting tone for different audiences
  • Generating and rewriting text with AI
  • Maintaining brand voice across a team
  • Checking student work for AI-generated content
  • Verifying authentic authorship in classrooms
  • Screening submissions for publishers and recruiters
  • Detecting AI text through the API in other apps
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