1. Should you try Grammarly? Overview

What it is	Grammarly = inline English writing co-pilot everywhere you type: keystroke → grammar/spelling/punctuation/clarity/conciseness/tone inline → Pro unlocks full-sentence rewrite, fluency, inclusive-language, citation consistency, plagiarism + AI-text.
Country / HQ	San Francisco, USA (founded Kyiv)
Best for	ESL writers stabilizing English grammar/tone daily
Check before buying	Watch out: Novelists/long-form authors wanting craft reports (ProWritingAid)
Editor rating	4.7 / 5
Pricing signal	Free tier + paid from $15/mo

2. Features What it does

Feature	What it does
Core check	Grammar/spelling/punctuation, clarity, conciseness, tone detection (free), fluency — English-only, 1M+ surfaces via ext/desktop/mobile/Office/GDocs
Rewrite (Pro+)	Full-sentence/paragraph rewrite, tone shift, inclusive language, citation consistency — Free = suggestions only, no rewrite accept
AI prompts	100/mo free / 2,000/mo Pro / unlimited Ent — generate, summarize, reply, change voice — Prompt-metered, not token-metered
Agent stack 2026	Proofreader, Paraphraser, Reader Reactions (audience empathy sim), Citation Finder, Fact Checker, AI Grader, Humanizer, AI Detector, Plagiarism Checker (last two Pro+) — Expert Review killed Mar 2026 after lawsuit
Authorship	Provenance panel showing typed/pasted/AI-generated splits per doc — Ships 2026, free+paid
Docs	Grammarly’s web editor, agent tray, share link — Not Google Docs competitor, companion surface
Superhuman Go	Separate cross-app agent (CRM pull, meeting recall) bundled in Superhuman suite, not in standalone Grammarly Pro — Go early-access free on Chrome/Edge
Enterprise gov	SAML SSO, SCIM, DLP, confidential mode, BYOK, audit-logs API, custom roles, domain capture, cost-center visibility — SOC 2 / ISO 27k / HIPAA

Access type	Details
Access	access_type: browser-extension-plus-desktop-plus-office-plus-mobile-keyboard-plus-web-docs access_display: 🌐 Chrome/Edge/Safari/Firefox ext · 🖥️ Win/Mac desktop · 📝 Word/Outlook add-in + GDocs · 📱 iOS/Android keyboard · 📝 Grammarly Docs web · no MCP,

Source	Rating	What it says
G2	~4.7/5 (12,900+ rev) — inline accuracy, browser ubiquity praised; gripes on tone false-positives, monthly billing gouge
AIUnpacking	4/5 — “core engine still best-in-class, but Mar 2026 Expert Review lawsuit exposed guardrail gap”
ToolixLab	“AI detector fails independent RAID test (0/9), treat as weak signal only”
UseCarly	“Pro $12/yr fair; Superhuman Business $33/seat bundles Mail+Coda most writers don’t want”
Community	Refund-after-auto-renew complaints; ESL users love it, novelists find it shallow vs ProWritingAid

✔ Suitable	✘ Not suitable
• ESL writers stabilizing English grammar/tone daily • Professionals cleaning email/Slack/Doc/Outlook drafts • Students polishing essays + checking AI/plagiarism score • Teams ≤149 wanting shared style guide + snippets (Pro) • Regulated orgs needing SSO/DLP/BYOK (Enterprise)	• Novelists/long-form authors wanting craft reports (ProWritingAid) • Multilingual teams (LanguageTool 30+ langs) • Brand-voice-at-scale orgs (Writer.com) • Paraphrase-heavy researchers (QuillBot modes deeper) • People who won’t watch auto-renew (refund friction)

Competitor	How it differs	Best for
ProWritingAid	25+ craft reports, long-form, lifetime $399	$10/mo (or $120/yr)
QuillBot	Paraphrase modes + summarizer + citations	$9.95/mo
LanguageTool	30+ langs, open-source/self-host	$4.99/mo
Wordtune	Sentence rewrite variants + tone	$6.99–13.99/mo
Hemingway Editor	Readability-only, no grammar	$19.99 once
Writer.com	Enterprise brand voice + compliance	$18/seat/mo
Microsoft Editor	M365-bundled grammar	incl. M365
Google Docs + Gemini	Zero-friction collaboration	Workspace price
Sapling	Support/sales autocomplete + API	$25/mo

Who should pick it	ESL writers stabilizing English grammar/tone daily
Who should skip it	Novelists/long-form authors wanting craft reports (ProWritingAid)