Proton Pass vs Grammarly

Proton Pass7.1Visit Grammarly6.3Visit

Higher score Proton Pass #5 in Extensions 7.1/10 Free plan · 14-day trial Free plan✓ 0 of 1 features Visit Proton Pass

vs

Grammarly #10 in Extensions 6.3/10 Free plan · paid from $12/user/mo Free plan✓ 0 of 1 features Visit Grammarly

• Proton Pass fits best

  Open-source encrypted password and passkey storage

• Grammarly fits best

  Writing assistance across browser, desktop and mobile

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Side by side

Feature	Proton Pass 7.1/10 Visit ↗	Grammarly 6.3/10 Visit ↗
At a glance
Editor score	7.1	6.3
Ranking	#5 in Extensions	#10 in Extensions
Best for	Open-source encrypted password and passkey storage	Writing assistance across browser, desktop and mobile
Pricing model	Free plan + paid	Free plan + paid
Starting price	Not published	$12/user/mo
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud, Desktop, Mobile, Browser extension	Cloud, Desktop, Mobile, Browser extension
Platforms	Web, Windows, macOS, Linux, iOS, Android, Chrome extension	Web, Windows, macOS, iOS, Android, Chrome extension
Support	Email, Phone, Docs	Docs
Compliance	GDPR, HIPAA, ISO 27001, SSO/SAML, 2FA	SOC 2, ISO 27001, HIPAA, PCI DSS, SSO/SAML, 2FA
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features Proton Pass 0/1 · Grammarly 0/1
Team sharing	Not published	Not published
Specs
Supported browsers	Not published	Not published
Primary function	Not published	Not published
Supported devices	Not published	Not published
Free plan limit	Not published	Not published
Our review
Pros	Free plan includes unlimited logins, notes, cards, and devices Open-source apps span web, desktop, mobile, and browser extension Secure sharing, aliases, authenticator, monitoring, and passkeys included	Checks grammar, spelling, punctuation, clarity, fluency, style, and tone Works across web, desktop, mobile, and apps such as Word and Google Docs Pro adds full-sentence rewrites, detection tools, and more AI prompts
Cons	Paid plan prices are not shown here Passkeys cannot currently log into Proton Pass apps Advanced business controls target organizational rather than basic needs	Free includes 100 AI prompts per month Pro costs $12 per user per month Enterprise features such as custom roles and data loss prevention require that plan
Our verdict	Proton Pass is an end-to-end encrypted password manager for storing, autofilling, and sharing logins, notes, credit cards, and passkeys. It suits individuals, families, small teams, mid-market organizations, and enterprises that want… Read the review →	Grammarly helps individuals, professionals, teams, and educational users improve writing across browsers, desktop applications, mobile apps, and Grammarly Docs. It checks grammar, spelling, punctuation, clarity, fluency, and tone, and can… Read the review →

Strengths and trade-offs

• Proton Pass — where it wins

  • Free plan includes unlimited logins, notes, cards, and devices
  • Open-source apps span web, desktop, mobile, and browser extension
  • Secure sharing, aliases, authenticator, monitoring, and passkeys included

  Where it doesn't

  • Paid plan prices are not shown here
  • Passkeys cannot currently log into Proton Pass apps
  • Advanced business controls target organizational rather than basic needs

• Grammarly — where it wins

  • Checks grammar, spelling, punctuation, clarity, fluency, style, and tone
  • Works across web, desktop, mobile, and apps such as Word and Google Docs
  • Pro adds full-sentence rewrites, detection tools, and more AI prompts

  Where it doesn't

  • Free includes 100 AI prompts per month
  • Pro costs $12 per user per month
  • Enterprise features such as custom roles and data loss prevention require that plan

• Proton Pass7.1/10 · Free plan · 14-day trial

  Open-source encrypted storage with passkeys, sharing, aliases, and business controls.

  Visit Proton PassFull verdict →
• Grammarly6.3/10 · Free plan · paid from $12/user/mo

  A cross-platform writing assistant, with deeper rewrites and detection in Pro.

  Visit GrammarlyFull verdict →