Grammarly vs ProWritingAid

Two of the 26 AI writing tools in our ranking, compared fact by fact — every price and feature read from each maker's own pages on Oct 23, 2026.

Writers who want AI editing plus tone and style rules in every app

6.5

#12

Authors and editors who want custom style rules

6.4

#14

The short answer

	Grammarly	ProWritingAid
Score	6.5/10 · #12 of 26	6.4/10 · #14 of 26
Pricing model	Freemium	Freemium
Paid from	$12 (Pro)“Pro $12 USD” — grammarly.com/plans	$10/mo, billed yearly (Premium)“10 00 per month billed yearly 120” — prowritingaid.com/pricing
Free plan	✓ Yes	✓ Yes
Free trial	Not published	Not published
Brand voice	✓ Yes	✓ Yes
Long-form	– Not published	– Not published
SEO features	– Not published	– Not published
Team seats	✓ Yes	– Not published
Browser extension	✓ Yes	✓ Yes
Why it ranks	Has a free plan and Pro includes a style guide and brand tones.	Premium is $10/month billed yearly and includes a custom style guide.
Watch for	Pro price is shown as $12 without a stated billing period on the page.	Page states 'Our licenses are for individual users'.