Productivity

Grammarly Review 2026

By App Guru Editorial Team | October 2026

Typos in a job application email, a confusing sentence in a client message, the wrong tone in a reply to your boss — most of us have sent writing we wish we could take back. Grammarly exists so you stop doing that. It is an AI writing assistant that checks your spelling, grammar, and tone as you type, in practically every app on your phone.

We ran Grammarly as our daily keyboard for weeks — writing emails, social captions, notes, and work documents — testing both the free plan and Premium to see where the paywall matters, how accurate the suggestions really are, and whether the privacy trade-offs are acceptable. This review covers what it does, the features that matter, what it costs, where it falls short, and who should actually install it.

What Grammarly does

Grammarly is an AI writing assistant that lives wherever you type. On Android it installs as a replacement keyboard: open Gmail, WhatsApp, Instagram, your notes app, or anything else, and Grammarly underlines issues in your text as you write — misspelled words, grammar mistakes, punctuation slips, and, on the paid plan, awkward phrasing and tone problems. Tap an underline to see the fix and accept it with one more tap.

It also runs as a browser extension and a desktop app, so the same account polishes your writing on your laptop too. The free tier covers the core job — correctness — with no word limit. The paid tiers add style: rewording sentences for clarity, adjusting tone to sound confident or friendly, and flagging plagiarism against web sources.

Standout features

Everywhere-you-type checking on Android

The Grammarly keyboard is the whole reason the mobile app matters. Unlike a browser extension that only works on websites, the keyboard watches everything you type — texts, DMs, captions, email drafts — and catches errors before you send. In testing it caught genuinely embarrassing mistakes: "their" versus "there" in a work message, a missing apostrophe in a caption, a run-on sentence in an email. The underlines are subtle and the corrections accept fast, so it never feels like it is slowing you down.

Tone detector

Grammarly reads the tone of what you wrote — formal, friendly, confident, concerned — and shows it before you send. This is surprisingly useful on a phone, where you fire off replies fast. Seeing "concerned" attached to a message you meant as neutral has saved more than one awkward exchange. Premium goes further, letting you set a desired tone (confident, empathetic, direct) and rewrite sentences to match it.

Full-sentence rewrites

This is the Premium feature that earns the subscription. Highlight a clunky sentence and Grammarly offers rewritten versions — clearer, shorter, or more formal. It handles the 80% of editing that is mechanical: passive voice, wordy constructions, redundant phrases. You still decide what stays, but the first pass of editing happens for you. In our testing it genuinely improved rough drafts, especially for non-native English speakers.

Generative AI writing help

Grammarly's built-in AI can draft from a prompt — a reply to an email, a product description, a caption — then refine it in your voice. It is not a separate chatbot you have to open; it sits inside the editor or keyboard where you are already writing. The results are better grounded than a generic AI tool because they start from your existing text and tone. Heavy use of the AI features counts against monthly prompt limits on lower plans, so power users will want Premium.

Plagiarism and citation tools

Premium compares your text against billions of web pages and flags passages that look too close to published sources — useful for students, bloggers, and content teams. It also formats citations for academic writing. Combined with the writing score that tracks your habits over time, Grammarly doubles as a quiet coach: our weekly stats showed exactly which mistakes we kept repeating, which made the feedback feel personal rather than generic.

Pricing tiers

The free plan is the most generous free tier among writing tools — unlimited grammar, spelling, and punctuation checks, plus basic tone detection. A huge share of users will never need more.

• Free ($0): unlimited grammar, spelling, and punctuation checks, basic tone detection, works in every app via the Android keyboard
• Premium (~$30/month, ~$12/month billed annually at ~$144/year): everything in Free plus full-sentence rewrites, tone adjustments, word choice and clarity suggestions, plagiarism detection, generative AI writing with higher limits
• Business (~$25/user/month): everything in Premium plus team style guides, brand tone profiles, analytics, SSO, and admin controls for companies
• Education (discounted/free for qualifying institutions): Premium-level features for schools and universities through institutional licenses

Watch the monthly plan: at ~$30 it is one of the priciest app subscriptions around — always take the annual plan if you commit. Students should check whether their school already provides a license before paying.

Who it's for

Grammarly is ideal for anyone whose writing carries weight: job seekers writing applications, freelancers and marketers producing client copy, students writing essays, and non-native English speakers who want a safety net in every message. If you write important things on your phone — and most of us do — the keyboard alone justifies the free install.

It is not for everyone. If you mostly type casually and rarely write anything formal, the free plan's corrections are nice but Premium's rewrites will go unused. Professional editors and linguists will find it occasionally over-corrects — it flagged one of our test sentences as wordy that was intentionally punchy — so treat suggestions as advice, not law. And if you dislike the idea of your keystrokes passing through a company's servers, a fully offline checker like LanguageTool's local mode fits better.

Getting started with Grammarly

1. Install and enable the keyboard. Download Grammarly from the Play Store, open the app, and follow the setup to enable the Grammarly keyboard and switch to it. Accept the "full access" prompt — the keyboard needs it to check your typing across apps.
2. Set your writing goals. In the app, set your audience, formality, and intent (academic, business, casual). Grammarly tunes its suggestions to match — it won't push formal rewrites on a casual text.
3. Type somewhere real. Draft an email or a long message and watch the underlines appear. Tap one to see the explanation — understanding why a fix is suggested teaches you to write better without the tool.
4. Check your tone before sending. Tap the tone indicator before sending anything important. If it reads "blunt" and you wanted "friendly," rewrite with the tone tool.
5. Try Premium on a real project. Run a work document or essay through the free trial first. Upgrade only if the full-sentence rewrites and plagiarism checker earn their keep — casual users should stay on the generous free plan.

Frequently asked questions