Skip to content

Tools · Comparison

Grammarly vs Penelope AI vs Shortwave

All three are writing & content tools. Here is what separates them.

GrammarlyPenelope AIShortwave
What it isGrammarly makes AI writing convenient. Work smarter with personalized AI guidance and text generation on any app or website.Penelope AI simplifies writing: Easily rewrite, summarize, paraphrase and create articles with smart AI tools in a user-friendly editor.Agentic AI that helps you organize, write, search, schedule, and more with just a prompt
CategoryWriting & ContentWriting & ContentWriting & Content
PricingFreemium · $12-$15/moFree · FreeFreemium
How it billsFlat monthlyFreeNot published
Free tierYesYesYes
Rating4.6 from 1 reviewsNot yet ratedNot yet rated
Features
  • Grammar & spelling check
  • Tone detection
  • Clarity suggestions
  • GrammarlyGO AI writing
  • Plagiarism detection
  • Browser extension
  • Desktop app
  • Brand tones
——
What works
  • Works everywhere
  • Excellent accuracy
  • Free tier is useful
  • Non-intrusive
  • Trusted by millions
  • Has a free tier, so it can be tried before paying
  • Free to use
  • Sits in Writing & Content, one of the better-covered categories here — easy to compare
—
What does not
  • Premium required for advanced features
  • Can be over-aggressive
  • Limited creative writing support
  • Privacy concerns
  • 206 other tools in this catalogue claim to do the same job
—
Visit GrammarlyVisit Penelope AIVisit ShortwaveCompare more tools