# Gamma vs 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

- Gamma profile: https://finderatlas.com/tools/gamma
- Grammarly profile: https://finderatlas.com/tools/grammarly
- Comparison page: https://finderatlas.com/compare/gamma-vs-grammarly
- Last reviewed: October 2026

## 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.

### 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.

## Pricing

| | Gamma | Grammarly |
| --- | --- | --- |
| Pricing model | Freemium | Freemium |
| Free plan or trial | Yes | Yes |
| Starting price | $0 | $0 |

## Features

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

## Platforms

| Platform | Gamma | Grammarly |
| --- | --- | --- |
| Web | Yes | Yes |
| Windows | No | Yes |
| macOS | No | Yes |
| iOS | No | Yes |
| Android | No | Yes |
| API | Yes | Yes |
| Browser Extension | No | No |
| Chrome Extension | No | Yes |
| Firefox Extension | No | Yes |

## Gamma strengths

- 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

## Gamma limitations

- 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 strengths

- 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.

## Grammarly limitations

- 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.

## FAQ

**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.