GrammarlyvsProWritingAid

Saas62

Saas

Score Comparison

Overall

Pricing

Usability

Performance

Support

Reliability

Onboarding

Mobile

Security

Integrations

GrammarlyProWritingAid

Signals Comparison

Pricing

Grammarly

Grammarly refund denied - refunds only where required by law(8/10)
Automatic renewal charges without clear notice(8/10)

ProWritingAid

Free version limited to 500 words(6/10)
Premium $30/month feels expensive(6/10)
Refunds only within 3 days of purchase(6/10)

Usability

Grammarly

AI update backlash - users hate forced generative features(8/10)
Constant upgrade prompts disrupt writing flow(6/10)
Grammarly icon replaced by Superhuman logo after Superhuman Go activation(5/10)
Icon obstruction blocks important buttons(5/10)

ProWritingAid

Inconsistent detection and false positives(7/10)
Steep learning curve with overwhelming reports(5/10)
Cannot save grammar preferences(6/10)
Mishandles dialogue tags and creative writing(6/10)

Performance

Grammarly

Suggestions often incorrect or change intended meaning(8/10)
Overly rigid suggestions harm creative writing(7/10)
Plagiarism checker accuracy is poor(7/10)
AI detector falsely flags non-AI content(7/10)
GrammarlyGO content sounds bland and generic(6/10)
Weak spell-check doesn't recognize common misspellings(5/10)

ProWritingAid

Word add-in crashes and freezes Word(9/10)
Struggles with large documents over 800 words(8/10)
Plagiarism checker extremely slow(6/10)

Reliability

Grammarly

Grammarly desktop app crashes, disappears or won't stay logged in(8/10)
Requires internet - useless with slow connection(6/10)

ProWritingAid

No signals

Integrations

Grammarly

Grammarly for Microsoft Office add-in retired - Word users forced to desktop app(7/10)

ProWritingAid

Chrome extension doesn't work on many websites(7/10)
Scrivener integration loses changes(8/10)
Gmail and email integration unreliable(5/10)

Support

Grammarly

Slow customer support and refund denial(6/10)

ProWritingAid

No live chat or phone support(5/10)

Security

Grammarly

Privacy concerns with text sent to AI providers(6/10)

ProWritingAid

AI rephrasing triggers plagiarism detection(9/10)

Pricing Comparison

Grammarly

Free

Users: 1 user

Limits: No plagiarism checker or AI detector, no full-sentence rewrites

Frequent upgrade prompts; tone adjustment and full-sentence rewrites locked

Pro (Monthly)

$30/mo

Users: Up to 149 seats

Limits: Per-member pricing; prompts capped at 2,000/month

$30/member/month - 2.5x the annual rate; auto-renews; refunds only if required by law

Pro (Quarterly)

$20/mo

Users: Up to 149 seats

Limits: Not shown on the main plans page - listed in the help center

Billed $60/member every three months; auto-renews quarterly

Pro (Annual)

Popular

$12/yr

Users: Up to 149 seats

Limits: 12-month commitment

$144/member charged upfront; renews automatically; no refund for unused months unless required by law

Superhuman Pro (suite)

$15/mo

Limits: Cannot be merged with an existing Grammarly subscription

On monthly billing Grammarly Pro is a separate $15/month add-on, so the suite + Grammarly Pro costs the same $30/month as standalone

Superhuman Business

$40/mo

Limits: Mostly worth it only if you also want Superhuman Mail

$40/member/month on monthly billing

Enterprise

Free

Users: Unlimited

Limits: Sales process required

Custom pricing via sales only

ProWritingAid

Free

Users: 1 user

Limits: 500 word limit per check, Web editor only, Very limited daily usage

No integrations (Word, Chrome, Scrivener), No plagiarism checks, No desktop app

Premium

$30/mo

Users: 1 user

Limits: No plagiarism checker included, Standard support only

Plagiarism checks cost extra (need Premium Pro), No priority support

Premium (Annual)

Popular

$120/yr

Users: 1 user

Limits: No plagiarism checker, No priority support

Plagiarism checks still cost extra, Only 3-day refund window

Premium (Lifetime)

$399/mo

Users: 1 user

Limits: No plagiarism checker, Standard support only

Plagiarism checks still require upgrade to Premium Pro or separate purchase

Premium Pro

$36/mo

Users: 1 user

Limits: Plagiarism checks limited to 60/year

Only 60 plagiarism checks per year may not be enough for heavy users

Premium Pro (Annual)

$144/yr

Users: 1 user

Limits: 60 plagiarism checks/year limit

60 plagiarism checks may run out, Non-refundable after 3 days

Premium Pro (Lifetime)

$699/mo

Users: 1 user

Limits: 60 plagiarism checks/year (renews annually)

Large upfront cost, Plagiarism check limits still apply annually

Feature Comparison

Feature	Grammarly	ProWritingAid
Core Features
Grammar & spelling check Free tier includes
Grammar checking 91% accuracy in testing
Punctuation check Free tier includes
Style suggestions 25+ writing reports
Tone detection Basic free, full Pro
Multiple languages Writing checks in 6 languages per Superhuman plans page; deepest support is English
Pro Features
Full-sentence rewrites Pro only
Plagiarism checker Pro only, low accuracy
AI Features
AI rephrasing May trigger AI detection
Generative AI prompts 100 Free, 2,000 Pro, unlimited Enterprise per month
Integrations
Browser extensions Chrome, Firefox, Edge, Safari
Scrivener integration Loses changes, requires app closed
Desktop apps Windows, Mac - unstable
Chrome extension Doesn't work on all sites
Mobile keyboards iOS, Android
Desktop app Windows and Mac
Google Docs integration Browser extension; known issues with footnotes, tables and 30+ page docs
Mobile app No native mobile app
Microsoft Word integration Via Grammarly for Windows/Mac desktop app; Office add-in being retired, Word-on-Mac add-in discontinued
Usability
Offline mode Requires internet
Team Features
Team collaboration Basic team plans available
Pricing
Lifetime plan $399 Premium, $699 Premium Pro
Free tier 500 words only, very limited

Signals Comparison

Pricing

Grammarly

Grammarly refund denied - refunds only where required by law(8/10)
Automatic renewal charges without clear notice(8/10)

ProWritingAid

Free version limited to 500 words(6/10)
Premium $30/month feels expensive(6/10)
Refunds only within 3 days of purchase(6/10)

Usability

Grammarly

AI update backlash - users hate forced generative features(8/10)
Constant upgrade prompts disrupt writing flow(6/10)
Grammarly icon replaced by Superhuman logo after Superhuman Go activation(5/10)
Icon obstruction blocks important buttons(5/10)

ProWritingAid

Inconsistent detection and false positives(7/10)
Steep learning curve with overwhelming reports(5/10)
Cannot save grammar preferences(6/10)
Mishandles dialogue tags and creative writing(6/10)

Performance

Grammarly

Suggestions often incorrect or change intended meaning(8/10)
Overly rigid suggestions harm creative writing(7/10)
Plagiarism checker accuracy is poor(7/10)
AI detector falsely flags non-AI content(7/10)
GrammarlyGO content sounds bland and generic(6/10)
Weak spell-check doesn't recognize common misspellings(5/10)

ProWritingAid

Word add-in crashes and freezes Word(9/10)
Struggles with large documents over 800 words(8/10)
Plagiarism checker extremely slow(6/10)

Reliability

Grammarly

Grammarly desktop app crashes, disappears or won't stay logged in(8/10)
Requires internet - useless with slow connection(6/10)

ProWritingAid

No signals

Integrations

Grammarly

Grammarly for Microsoft Office add-in retired - Word users forced to desktop app(7/10)

ProWritingAid

Chrome extension doesn't work on many websites(7/10)
Scrivener integration loses changes(8/10)
Gmail and email integration unreliable(5/10)

Support

Grammarly

Slow customer support and refund denial(6/10)

ProWritingAid

No live chat or phone support(5/10)

Security

Grammarly

Privacy concerns with text sent to AI providers(6/10)

ProWritingAid

AI rephrasing triggers plagiarism detection(9/10)

Pricing Comparison

Grammarly

Free

Users: 1 user

Limits: No plagiarism checker or AI detector, no full-sentence rewrites

Frequent upgrade prompts; tone adjustment and full-sentence rewrites locked

Pro (Monthly)

$30/mo

Users: Up to 149 seats

Limits: Per-member pricing; prompts capped at 2,000/month

$30/member/month - 2.5x the annual rate; auto-renews; refunds only if required by law

Pro (Quarterly)

$20/mo

Users: Up to 149 seats

Limits: Not shown on the main plans page - listed in the help center

Billed $60/member every three months; auto-renews quarterly

Pro (Annual)

Popular

$12/yr

Users: Up to 149 seats

Limits: 12-month commitment

$144/member charged upfront; renews automatically; no refund for unused months unless required by law

Superhuman Pro (suite)

$15/mo

Limits: Cannot be merged with an existing Grammarly subscription

On monthly billing Grammarly Pro is a separate $15/month add-on, so the suite + Grammarly Pro costs the same $30/month as standalone

Superhuman Business

$40/mo

Limits: Mostly worth it only if you also want Superhuman Mail

$40/member/month on monthly billing

Enterprise

Free

Users: Unlimited

Limits: Sales process required

Custom pricing via sales only

ProWritingAid

Free

Users: 1 user

Limits: 500 word limit per check, Web editor only, Very limited daily usage

No integrations (Word, Chrome, Scrivener), No plagiarism checks, No desktop app

Premium

$30/mo

Users: 1 user

Limits: No plagiarism checker included, Standard support only

Plagiarism checks cost extra (need Premium Pro), No priority support

Premium (Annual)

Popular

$120/yr

Users: 1 user

Limits: No plagiarism checker, No priority support

Plagiarism checks still cost extra, Only 3-day refund window

Premium (Lifetime)

$399/mo

Users: 1 user

Limits: No plagiarism checker, Standard support only

Plagiarism checks still require upgrade to Premium Pro or separate purchase

Premium Pro

$36/mo

Users: 1 user

Limits: Plagiarism checks limited to 60/year

Only 60 plagiarism checks per year may not be enough for heavy users

Premium Pro (Annual)

$144/yr

Users: 1 user

Limits: 60 plagiarism checks/year limit

60 plagiarism checks may run out, Non-refundable after 3 days

Premium Pro (Lifetime)

$699/mo

Users: 1 user

Limits: 60 plagiarism checks/year (renews annually)

Large upfront cost, Plagiarism check limits still apply annually

Feature Comparison

Feature	Grammarly	ProWritingAid
Core Features
Grammar & spelling check Free tier includes
Grammar checking 91% accuracy in testing
Punctuation check Free tier includes
Style suggestions 25+ writing reports
Tone detection Basic free, full Pro
Multiple languages Writing checks in 6 languages per Superhuman plans page; deepest support is English
Pro Features
Full-sentence rewrites Pro only
Plagiarism checker Pro only, low accuracy
AI Features
AI rephrasing May trigger AI detection
Generative AI prompts 100 Free, 2,000 Pro, unlimited Enterprise per month
Integrations
Browser extensions Chrome, Firefox, Edge, Safari
Scrivener integration Loses changes, requires app closed
Desktop apps Windows, Mac - unstable
Chrome extension Doesn't work on all sites
Mobile keyboards iOS, Android
Desktop app Windows and Mac
Google Docs integration Browser extension; known issues with footnotes, tables and 30+ page docs
Mobile app No native mobile app
Microsoft Word integration Via Grammarly for Windows/Mac desktop app; Office add-in being retired, Word-on-Mac add-in discontinued
Usability
Offline mode Requires internet
Team Features
Team collaboration Basic team plans available
Pricing
Lifetime plan $399 Premium, $699 Premium Pro
Free tier 500 words only, very limited