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Gamma vs Grammarly

Features, pricing, ratings, and pros and cons, side by side.

Grammarly logo

Grammarly

AI writing assistant that corrects, rewrites and tone-checks your text across every app

Freemium
Visit websiteView details

Verdict

Gamma is listed under Productivity and Grammarly under AI Assistants. Both have a free plan or trial. Only Grammarly is available on Windows, macOS and iOS.

Best overall

Gamma

  • Startup founders
  • Marketers
  • Sales teams
  • Educators and trainers

Choose Gamma if

  • You want a tool built for pitch decks.
  • Generates a full deck, document or webpage from a single prompt.
  • Card layout adapts to desktop and mobile screens without manual slide alignment.

Choose Grammarly if

  • You want a tool built for polishing emails and documents in real time across many apps, keeping tone and style consistent across a team.
  • Works across desktop, browser, Office, Google Docs and mobile keyboards, so suggestions follow you between apps.
  • Free plan covers core grammar, spelling and tone visibility with 100 AI prompts per month.
Best for beginners
Gamma
Best for business
Gamma

Features

17 features compared.

  • Prompt-to-deck generation
    Gamma
    Available
    Grammarly
    Not available
  • Card-based layout
    Gamma
    Available
    Grammarly
    Not available
  • AI editing and restyling
    Gamma
    Available
    Grammarly
    Not available
  • AI images
    Gamma
    Available
    Grammarly
    Not available
  • Export and sharing
    Gamma
    Available
    Grammarly
    Not available
  • Website publishing
    Gamma
    Available
    Grammarly
    Not available
  • Analytics and access control
    Gamma
    Available
    Grammarly
    Not available
  • API and connectors
    Gamma
    Available
    Grammarly
    Not available
  • Citation Tools
    Gamma
    Not available
    Grammarly
    Available
  • Style Guides and Brand Tones
    Gamma
    Not available
    Grammarly
    Available
  • Cross-App Availability
    Gamma
    Not available
    Grammarly
    Available
  • Enterprise Security Controls
    Gamma
    Not available
    Grammarly
    Available
  • Grammar and Mistake Correction
    Gamma
    Not available
    Grammarly
    Available
  • Tone Detection and Adjustment
    Gamma
    Not available
    Grammarly
    Available
  • Full-Sentence and Paragraph Rewrites
    Gamma
    Not available
    Grammarly
    Available
  • AI Detector and Humanizer
    Gamma
    Not available
    Grammarly
    Available
  • Plagiarism Checker
    Gamma
    Not available
    Grammarly
    Available

Pricing

Plans as listed by each vendor. Check their sites for current prices.

  • Pricing model
    Gamma
    Freemium
    Grammarly
    Freemium
  • Free plan
    Gamma
    Yes
    Grammarly
    Yes
  • Starting price
    Gamma
    $0
    Grammarly
    $0
  • Plans
    Gamma
    6 plans
    Grammarly
    3 plans

Gamma plans

  • Free

    $0

    400 one-time AI credits that do not refresh

    • 400 AI credits
    • 10 cards per prompt
    • Basic image models
    • Made with Gamma badge

  • Plus

    $12/month

    Removes the Gamma badge and adds 1,000 monthly credits

    • 1,000 credits per month
    • 100 cards per prompt
    • Advanced image models
    • No Gamma badge

  • Pro

    Most popular

    $25/month

    4,000 monthly credits plus API access and custom domains

    • 4,000 credits per month
    • API access
    • Premium image models
    • 10 custom domains
    • Detailed analytics
    • Password protection

  • Ultra

    $100/month

    20,000 monthly credits and access to the most advanced models

    • 20,000 credits per month
    • API access
    • Ultra image models
    • 100 custom domains
    • Custom fonts

  • Business

    $40/user/mo

    Billed annually ($480 per seat per year)

    • SSO
    • SOC 2 documentation
    • 10,000 credits per seat
    • Shared workspace credits

  • Enterprise

    Custom/annual

    Annual agreement for larger organizations; contact sales

    • Custom credits
    • Advanced admin controls
    • SCIM
    • Invoiced billing
    • Dedicated onboarding

Grammarly plans

  • Free

    $0

    Basic writing help for individuals

    • Mistake correction
    • tone visibility
    • 100 AI prompts/month

  • Pro

    Most popular

    $30/month

    Individuals and eligible teams wanting advanced rewrites and detection

    • 2,000 AI prompts/member/month
    • tone adjustment
    • full-sentence rewrites
    • plagiarism detection
    • AI-generated text detection
    • style guide
    • brand tone
    • priority support

  • Enterprise

    Custom/custom

    Larger organizations with security and governance needs

    • Unlimited AI prompts
    • unlimited style guides and brand tones
    • SAML SSO
    • SCIM
    • audit logs API
    • data loss prevention
    • dedicated support

Our ratings

Scored out of 10 by the Finder Atlas editorial team. Last reviewed October 2026.

Gamma
8.4overall
Grammarly
8.2overall

Gamma leads in 0 categories and Grammarly in 1.

  • Presentation Generation Speed

    Gamma
    8.8
    Grammarly
    Not rated

  • Layout & Aesthetic Polish

    Gamma
    8.5
    Grammarly
    Not rated

  • Export Versatility (PPTX/PDF)

    Gamma
    7.8
    Grammarly
    Not rated

  • Mobile Responsiveness

    Gamma
    8.0
    Grammarly
    Not rated

  • Ease of Use

    Grammarly leads by 0.1
    Gamma
    9.0
    Grammarly
    9.1

  • Feature Depth

    Gamma
    Not rated
    Grammarly
    8.3

  • Value for Money

    Gamma
    Not rated
    Grammarly
    7.3

  • Performance & Speed

    Gamma
    Not rated
    Grammarly
    8.4

  • Documentation & Support

    Gamma
    Not rated
    Grammarly
    8.0

Scores weigh documented features, plan value, platform coverage, integrations and user feedback. A missing score means we have not rated that area yet.

Pros and cons

Gamma

Pros

  • Generates a full deck, document or webpage from a single prompt
  • Card layout adapts to desktop and mobile screens without manual slide alignment
  • Exports to PowerPoint and PDF and shares by web link
  • Free plan available, and Plus at $10 per month removes the Gamma badge
  • API and ChatGPT, Claude and Slack connectors for automation

Cons

  • Free credits are one-time (400) and the free plan is limited to 10 cards per prompt
  • Free exports carry a "Made with Gamma" badge
  • API access requires Pro ($20 per month) or higher
  • Ultra costs $100 per month and is monthly only, with no annual option
  • Users on review sites report problems with billing, credit use and slow support

Grammarly

Pros

  • Works across desktop, browser, Office, Google Docs and mobile keyboards, so suggestions follow you between apps.
  • Free plan covers core grammar, spelling and tone visibility with 100 AI prompts per month.
  • Pro adds tone adjustment, full-sentence rewrites, plagiarism and AI-text detection in a single subscription.
  • Team features include style guides, brand tones, analytics and user groups; Enterprise adds SSO, SCIM and audit logs.
  • Public REST APIs exist for analytics, licence management, writing score and detection.

Cons

  • Monthly billing for Pro is $30, versus $12 per month on annual billing, so month-to-month use costs 2.5 times as much.
  • Third-party tests of the AI Detector report notable false-positive rates (figures range from 14.2% to 34% across sources), so it is unreliable as proof.
  • An App Store reviewer criticizes the iOS keyboard setup for pushing users to grant broad access.
  • Experienced writers on forums report turning off many suggestions; advanced features are gated behind Pro.

Platforms

  • Web
    Gamma
    Supported
    Grammarly
    Supported
  • Windows
    Gamma
    Not supported
    Grammarly
    Supported
  • macOS
    Gamma
    Not supported
    Grammarly
    Supported
  • iOS
    Gamma
    Not supported
    Grammarly
    Supported
  • Android
    Gamma
    Not supported
    Grammarly
    Supported
  • API
    Gamma
    Supported
    Grammarly
    Supported
  • Browser Extension
    Gamma
    Not supported
    Grammarly
    Not supported
  • Chrome Extension
    Gamma
    Not supported
    Grammarly
    Supported
  • Firefox Extension
    Gamma
    Not supported
    Grammarly
    Supported

Integrations

Gamma

6 integrations
  • ChatGPT
  • Claude
  • Slack
  • MCP server
  • PowerPoint export
  • PDF export

Grammarly

7 integrations
  • Microsoft Office
  • Google Docs
  • Chrome
  • Safari
  • Firefox
  • Edge
  • Zendesk

Company

  • Company
    Gamma
    Gamma
    Grammarly
    Superhuman
  • Founded
    Gamma
    2020
    Grammarly
    2009
  • Headquarters
    Gamma
    San Francisco, CA
    Grammarly
    San Francisco, CA
  • Monthly users
    Gamma
    70M+ users
    Grammarly
    40 million people
  • Listing
    Gamma
    Claimed
    Grammarly
    Claimed

Frequently asked questions

Is Gamma better than Grammarly?

It depends on your workflow. Gamma is built for pitch decks. Grammarly is built for polishing emails and documents in real time across many apps, keeping tone and style consistent across a team.

What are the key feature differences between Gamma and Grammarly?

Gamma: Generate presentations, documents and websites from a prompt with an AI design partner. Grammarly: AI writing assistant that corrects, rewrites and tone-checks your text across every app.

Does Gamma or Grammarly have a free plan?

Yes, both do. Gamma is freemium and Grammarly is freemium, and each has a free plan or trial.

Which is cheaper, Gamma or Grammarly?

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.