Grammarly — Grammarly — the writing checker that lives everywhere you type: browser extension, desktop and mobile apps, inside Word
What it is
Grammarly is the writing checker that lives everywhere you type: browser extension, desktop and mobile apps, inside Word and Google Docs.
Editor's review
Long-form introduction by the BetterPicker editors · checked against the official site · Nov 5, 2026
Grammarly is the writing checker that lives everywhere you type: browser extension, desktop and mobile apps, inside Word and Google Docs. It began as a grammar and spelling checker and has grown into an AI writing platform -- sentence rewrites, tone adjustment, a plagiarism checker, an AI detector, citation tools, and agents that draft resumes or summarize feedback. The core grammar checking is free, which is how it reached into nearly every student laptop and office inbox; the rewriting depth and tone controls sit in Premium. Its promise is modest and useful: fewer embarrassing sentences, sent faster. Because it rides on top of whatever you already use, adoption is near-zero effort -- install, sign in, and the underlines appear in the places you already write. Recent releases push further into agentic territory -- tools that draft, restructure and check -- while the free checker stays the front door.
What it does well
Frictionless correction: underline-and-fix in whatever app you are in, with suggestions that explain the rule -- so writing improves over time instead of just getting patched. The explanations are short and human-readable, which turns each fix into a micro-lesson rather than a black-box edit.
Tone and clarity rewrites: Premium turns clunky sentences into clean ones and flags tone mismatches, which earns its keep in professional email and application letters. Goal settings -- audience, formality, intent -- bias the suggestions toward the register the document needs, which is more than a spellchecker offers.
Platform reach: browser, desktop, mobile keyboards and office-suite integrations mean one account covers work machines, personal laptops and the phone you type email on. For households and classrooms the single account model keeps cost and setup trivial.
Who it's for
Grammarly fits students, non-native English writers, support and sales teams whose output is prose, and anyone whose job lives in email. Casual writers get real value from the free tier; professionals who write all day are the audience for Premium, and teams get style consistency across a whole company. It is also a common recommendation for dyslexic and ESL writers, where the always-on safety net matters most.
Where it falls short
Critics have a point: the most-watched review argues the suggestions can be prescriptive and context-deaf, and that accepting everything flattens voice -- treat it as an editor you can overrule, not an authority. The critique video most people cite is an essay about language as much as software, but its practical advice -- keep your voice, question the rules -- is fair.
Not a fact checker: it polishes sentences; accuracy, sourcing and sense remain entirely yours. Confident sentences can still be wrong sentences; run anything load-bearing past a human.
The free-premium gap: advanced rewrites, tone controls and the plagiarism checker sit behind the subscription, and heavy users will feel the wall quickly. Monthly pricing exists, but the annual rate is the one most reviewers end up recommending.
Specs at a glance
Facts from the official site · not editorial opinion
| Type | AI writing assistant and grammar checker |
|---|---|
| Core | Grammar, spelling, clarity and tone suggestions |
| Extras | Plagiarism checker, AI detector, citation tools |
| Platforms | Browser, desktop, mobile, Word and Docs |
| Price | Free core; Premium subscription |
| Teams | Business plans with style consistency |
| Use | Everyday writing in email, docs and chat |
Frequently asked questions
▸Is Grammarly free?
Yes, core grammar and spelling checking is free; Premium adds rewrites, tone control and the plagiarism checker.
▸Does it work in Google Docs and Word?
Yes, plus browser extensions, desktop apps and mobile keyboards, so it follows you across apps.
▸Can it detect AI-written text?
It offers an AI detector as a separate tool; like all such detectors, treat its verdicts as signals rather than proof.
▸Will it change my writing voice?
It can if you accept every suggestion -- reviewers recommend treating it as an editor you overrule when style matters.
Video reviews
4 review videos aggregated · praise and criticism included alike · click through to the original video
Channels that covered it
Channels are aggregated as sources only — we don’t rate creators
Related tools
Where to go next
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