Tools · Comparison

Grammarly vs Shortwave vs Skim It

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

	Grammarly	Shortwave	Skim It
What it is	Grammarly makes AI writing convenient. Work smarter with personalized AI guidance and text generation on any app or website.	Agentic AI that helps you organize, write, search, schedule, and more with just a prompt	Email any article link to go@SkimIt.ai and receive an AI-generated summary in your inbox within minutes. No app, no signup — just email.
Category	Writing & Content	Writing & Content	Writing & Content
Pricing	Freemium · $12-$15/mo	Freemium	Paid
How it bills	Flat monthly	Not published	Not published
Free tier	Yes	Yes	No
Rating	4.6 from 15,000 reviews	Not yet rated	Not 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	—	The vendor lists 6 distinct capabilities 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	—	No free tier — it has to be paid for before it can be tried Does not publish a price on its own site, so the cost is only clear after signing up 206 other tools in this catalogue claim to do the same job 80 tools in the same category have a free tier