Grammarly Review: Features, Pricing & Governance

Grammarly

Writing assistance almost everyone already has installed, reading almost everything they type.

Writing & Editing Active #Writing#Editing#BrowserExtension#Enterprise

Quick specs

Developer	Grammarly
Jurisdiction	US
Category	Writing & Editing
Status	Active
Access	Browser Extension, Desktop Client, Web App, Mobile
Engine	Proprietary language models, with third-party frontier models behind some generative features.
Speed	Real time, inline.
API	Limited. Primarily an end-user product rather than a platform.

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Profile current as of 2026-05. Verify pricing and certifications with the vendor.

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In short

Real-time correction and rewriting wherever text is typed, across browser, desktop, and mobile. Ubiquity is the product: it works everywhere without changing how anyone works.

What it is best at

Correctness and tone consistency across all business writing
Enforcing a house style guide across a large team
Non-native English speakers producing publication-quality writing

Built for: Marketing · Enterprise Operations · Solopreneurs

Technical foundation

Base model: Proprietary language models, with third-party frontier models behind some generative features.
Context and file handling: Operates on text in place. Document upload in the web editor.
Latency: Real time, inline.
Output quality and limits: Excellent on mechanics and clarity. Style suggestions can flatten distinctive voice if accepted uncritically.

Pricing and access tiers

Tier	Model	Key inclusions	Limits
Free	$0	Core correctness suggestions	Limited generative use
Pro	Per-seat monthly	Tone, clarity, and generative features	Prompt allowances
Business / Enterprise	Per-seat, annual	Style guide, SSO, admin analytics, data controls	Contract-based

Pricing, version numbers, context-window sizes, and compliance certifications change frequently. Where stated they are accurate as of the as_of date and should be confirmed with the vendor before any procurement or compliance decision. Where they could not be stated confidently they are omitted rather than guessed.

Security, privacy and governance

Training data opt-out: Business and enterprise tiers carry stronger data commitments than the free tier. Verify which applies to the seats actually deployed.

The governance question this raises

The exposure here is breadth, not depth. A browser extension with permission to read and modify text sees drafts of everything: board material, legal correspondence, HR matters, client data, and anything typed into an internal system. It is frequently installed by individuals on the free tier and so never appears in a vendor review. Two practical controls: manage the extension through browser policy rather than leaving it to individuals, and confirm which tier the organization is actually running, because free and enterprise carry materially different terms.

No compliance certifications are listed here. Certification status is vendor-specific and time-specific, so it is stated only where verified rather than assumed. Check the vendor’s trust centre and confirm it covers the specific tier you are buying.

Integrations and ecosystem

Browser extensions across major browsers
Microsoft Office and Google Docs
Desktop applications

API and SDKs: Limited. Primarily an end-user product rather than a platform.

The verdict

Strengths

Works everywhere without workflow change
Genuinely effective on mechanics and clarity
Style guide enforcement at enterprise tier

Drawbacks

Extension sees an extremely broad slice of organizational text
Free-tier installs bypass vendor review entirely
Style suggestions can flatten voice

Consider instead: Microsoft Copilot, ChatGPT, Notion AI

Frequently asked questions

What is Grammarly used for?

Real-time correction and rewriting wherever text is typed, across browser, desktop, and mobile. Ubiquity is the product: it works everywhere without changing how anyone works.

What model does Grammarly run on?

Proprietary language models, with third-party frontier models behind some generative features.

Does Grammarly train on your data?

Business and enterprise tiers carry stronger data commitments than the free tier. Verify which applies to the seats actually deployed.

What are the alternatives to Grammarly?

The closest comparable tools are Microsoft Copilot, ChatGPT, Notion AI. Which fits depends on where the work already lives and what the organization's data terms require.

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