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Documentation · head to head

Grammarly vs People.ai

Grammarly logo

Grammarly

Documentation

Great writing, simplified

From
Free
Rated
-
Full reviewWebsite
People.ai logo

People.ai

Sales Enablement

AI Revenue Intelligence

From
$50/month
Rated
-
Full reviewWebsite

The short version

  • Only Grammarly has a free tier, so it costs nothing to try first.
  • Each has a real cost: Grammarly occasional false positives and grammatically incorrect suggestions that can introduce errors; People.ai pricing per user adds up quickly for large sales teams
  • They diverge on capability: Grammarly covers Grammar checking, People.ai covers Activity capture.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Grammarly and People.ai actually diverge.

Attributes where Grammarly and People.ai differ
AttributeGrammarlyPeople.ai
Starting priceFree$50/month
Free tierYesNo
PlatformsWeb, macOS, Windows, iOS, AndroidWeb
CategoryDocumentationSales Enablement
Founded20092016

Identical on both: pricing model (Unknown), user rating (Not yet rated).

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 People.ai

  • Activity capture
  • Contact management
  • Deal intelligence
  • AI coaching
  • Revenue analytics
  • Salesforce
  • Microsoft Dynamics
  • Zoom

Both cover

  • Slack

What people use each for

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

Grammarly

  • Email writingnot People.ai
  • Document editingnot People.ai
  • Academic writingnot People.ai
  • Business communicationnot People.ai
  • Content creationnot People.ai

People.ai

  • Customer Successnot Grammarly
  • Ai Intelligencenot Grammarly
  • Activity Capturenot 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

People.ai

  • Pricing per user adds up quickly for large sales teams
  • Setup requires deep CRM configuration and change management
  • Activity capture can generate noise without proper filtering and customization
  • Forecasting accuracy depends on data quality and proper configuration

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

People.ai

$50/month

No published plan breakdown. See the People.ai 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.
Grammarly review

Choose People.ai if

  • You need activity capture.
  • You also want contact management.
People.ai review

Questions people ask

Is Grammarly or People.ai better?
Neither clearly leads. Grammarly starts at Free and People.ai at $50/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Grammarly or People.ai?
Grammarly has a free tier; the other does not. Paid plans start at Free for Grammarly and $50/month for People.ai.
Does Grammarly or People.ai run on more platforms?
Grammarly runs on Web, macOS, Windows, iOS, Android. People.ai runs on Web.
Can I use Grammarly for free?
Yes. Grammarly has a free tier, so you can try it without paying. People.ai starts at $50/month.
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 People.ai is typically brought in for.
What can Grammarly do that People.ai cannot?
Grammarly covers Grammar checking, Spelling correction, Punctuation, Clarity suggestions. People.ai covers Activity capture, Contact management, Deal intelligence, AI coaching. Both handle Slack.

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
People.ai: What is People.ai's core functionality?

People.ai automates activity capture from emails, calls, and meetings, then uses AI to provide pipeline visibility, forecasting insights, and engagement analytics.

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
People.ai: What is the starting price for People.ai?

People.ai pricing starts at 50 USD per user per month, with free PeopleGlass tier available for Salesforce users.

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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