Grammarly

Full side-by-side comparison with strengths, weaknesses, pricing, and AI insights.

Add another tool (up to 4):

AI Comparison Insights

Practical analysis powered by AI — which tool actually fits your business?

Get an AI-powered breakdown of the real differences between Grammarly — including a clear recommendation, hidden trade-offs, and scenario-based advice.

Requires a free account. Sign up in 30 seconds

Feature	Grammarly
STOA Rating	7.2
Description	Grammarly checks and corrects grammar, spelling, tone, and clarity in real time for anyone who writes professionally across email, documents, or web platforms.
Strengths	•Works inside Gmail, Google Docs, Slack, and most web browsers with no extra setup •Free plan catches basic grammar and spelling errors for everyday use •Tone detection helps you sound professional in client-facing messages •AI writing suggestions speed up drafting emails and proposals •Easy enough for non-writers to use immediately
Weaknesses	•Advanced AI features and style suggestions are locked behind the paid plan •Team plans get expensive quickly — Business plan runs around $15 per user per month •Suggestions can sometimes change your intended meaning if you accept them without reading carefully •Not a full content creation tool — works best as an editing assistant, not a writer
Key Features	•Checks grammar, spelling, and punctuation in real time as you type •Suggests clearer, more concise ways to phrase sentences •Detects tone so you can adjust how your message sounds to the reader •Generates draft text, replies, and summaries using AI prompts •Works across email, documents, social media, and most web-based writing tools •Offers a plagiarism checker on paid plans for content creators
Pricing	Free tier available Free Tier
Best For	All industries
AI Features	AI-Powered Grammarly uses AI to suggest rewrites, adjust your writing tone, generate text from prompts, and flag clarity issues in real time. Its GrammarlyGO feature can draft emails, summarize text, and give feedback on how your message might land with readers.
Categories	Create & Publish Content
STOA Verdict	Grammarly is a great fit for any small business owner who writes emails, proposals, or marketing content and wants to look more professional without hiring an editor. The AI writing assistant catches grammar mistakes, improves tone, and helps you write faster — but the best features require the paid plan at $12-15 per month per person, which can add up if your whole team needs it.
	Visit Grammarly View Profile

Grammarly

7.2AI

Grammarly checks and corrects grammar, spelling, tone, and clarity in real time for anyone who writes professionally across email, documents, or web platforms.

Strengths

•Works inside Gmail, Google Docs, Slack, and most web browsers with no extra setup
•Free plan catches basic grammar and spelling errors for everyday use
•Tone detection helps you sound professional in client-facing messages
•AI writing suggestions speed up drafting emails and proposals
•Easy enough for non-writers to use immediately

Weaknesses

•Advanced AI features and style suggestions are locked behind the paid plan
•Team plans get expensive quickly — Business plan runs around $15 per user per month
•

Need help deciding?

A STOA consultant can help you evaluate these tools based on your specific business needs and walk you through implementation.

Talk to STOA

Grammarly

AI Comparison Insights

Strengths

Weaknesses

Need help deciding?

Key Features