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Software · head to head

Grammarly vs LastPass

Grammarly logo

Grammarly

Software

Great writing, simplified

From
Free
Rated
-
LastPass logo

LastPass

Software

Simplify online life with LastPass password manager

From
Free
Rated
-

The short version

  • Each has a real cost: Grammarly occasional false positives and grammatically incorrect suggestions that can introduce errors; LastPass free plan limited to 1 device type only
  • They diverge on capability: Grammarly covers Grammar checking, LastPass covers Password vault.

Where they differ

Only the attributes on which Grammarly and LastPass actually diverge.

Attributes where Grammarly and LastPass differ
AttributeGrammarlyLastPass
Pricing modelUnknownfreemium
PlatformsWeb, macOS, Windows, iOS, AndroidWeb, Desktop, Mobile
Founded20092008

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Grammarly

  • Grammar checking
  • Spelling correction
  • Punctuation
  • Clarity suggestions
  • Engagement feedback
  • Delivery insights
  • Plagiarism checker
  • Citation generator

Only in LastPass

  • Password vault
  • Password generator
  • Autofill
  • Security dashboard
  • Dark web monitoring
  • Emergency access
  • Secure notes
  • Digital wallet

Both cover

  • Chrome
  • Safari
  • Firefox
  • Edge

What people use each for

The jobs each tool is most often brought in to do.

Grammarly

  • Email writingnot LastPass
  • Document editingnot LastPass
  • Academic writingnot LastPass
  • Business communicationnot LastPass
  • Content creationnot LastPass

LastPass

  • Password management and vault storagenot Grammarly
  • Multi-device access and autofillnot Grammarly
  • Dark web monitoring and security dashboardnot Grammarly
  • Team collaboration with shared folders and policiesnot Grammarly

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Grammarly

  • Occasional false positives and grammatically incorrect suggestions that can introduce errors
  • Privacy concerns about sending text to Grammarly's servers for analysis
  • AI capabilities sometimes produce hallucinations and fabricated citations that appear grammatically correct

LastPass

  • Free plan limited to 1 device type only
  • Premium plan costs ~$3/month annually (30% discount applied)
  • Business Teams plan limited to up to 50 users maximum
  • Teams plan offers only 25 security policies
  • Business plan pricing ~$4/user/month
  • Business Max plan costs ~$7/user/month for advanced features

Pricing, plan by plan

Grammarly

Free
  • FreeFree
    • Basic grammar and spelling checks
    • Tone visibility
    • 100 AI prompts per month
  • Pro$12/month
    • Sentence rewrites
    • Tone adjustment
    • Plagiarism and AI detection

LastPass

Free

No published plan breakdown. See the LastPass review.

Which should you pick?

Choose Grammarly if

  • You need grammar checking.
  • You want to start without paying.
  • You work on Web, macOS, Windows, iOS, Android.
  • You also want spelling correction.

Choose LastPass if

  • You need password vault.
  • You want to start without paying.
  • You work on Web, Desktop, Mobile.
  • You also want password generator.

Questions people ask

Is Grammarly or LastPass better?
Neither clearly leads. Grammarly starts at Free and LastPass at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Grammarly or LastPass?
Grammarly starts at Free and LastPass at Free.
Does Grammarly or LastPass run on more platforms?
Grammarly runs on Web, macOS, Windows, iOS, Android. LastPass runs on Web, Desktop, Mobile.
Can I use Grammarly for free?
Both have a free tier, so you can try either at no cost before committing.
What is Grammarly best used for?
Grammarly is most often used for email writing, document editing, academic writing, business communication. Of those, email writing and document editing are not what LastPass is typically brought in for.
What can Grammarly do that LastPass cannot?
Grammarly covers Grammar checking, Spelling correction, Punctuation, Clarity suggestions. LastPass covers Password vault, Password generator, Autofill, Security dashboard. Both handle Chrome, Safari, Firefox, Edge.

Answered from the vendors’ own pages

Grammarly: Does Grammarly have a free version?

Yes, Grammarly offers a free tier with basic spelling, grammar, and punctuation checks, tone visibility, and 100 AI prompts per month. The Pro plan ($12/month annual) adds sentence rewriting, plagiarism detection, and 2,000 AI prompts.

Source
Grammarly: What platforms does Grammarly work with?

Grammarly works across 1 million+ apps including Google Docs, Microsoft Word, Outlook, Slack, Gmail, and web browsers. It also integrates with productivity tools like Asana, Jira, Monday.com, Confluence, and HubSpot.

Source
Grammarly: Can I use Grammarly offline?

Grammarly requires an internet connection to function, though the browser extension works with some offline text areas. For offline use, the desktop app and browser extensions sync when reconnected.

Source
Grammarly: What is included in the Enterprise plan?

The Enterprise plan includes unlimited team members, dedicated support, custom roles and permissions, data loss prevention, bring-your-own-key encryption, and unlimited AI prompts. Pricing is custom and available by contacting sales.

Source

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