A grammar checker earns its subscription in one specific moment: the hour before you hit publish, when you can no longer see your own mistakes. That is the standard I hold Grammarly to. I have published hundreds of blog posts across my companies and reviewed far more drafts from writers I work with, and the question I get constantly is the same one you are probably asking: is the paid version of Grammarly worth it, or is the free plan enough?
The honest answer depends on what you write and how often. Grammarly makes it easy to find out for yourself, because its paid plan comes with a free trial that costs nothing upfront. In this review I will explain what happened to the Premium name, how the free trial works in 2026, what the paid plan actually adds over the free version, where it falls short, and how I would decide whether to keep paying after the trial ends.
Grammarly Premium Is Now Grammarly Pro
First, a naming update that trips up a lot of people searching for the Grammarly Premium free trial. Grammarly retired the Premium name and now sells its individual paid plan as Grammarly Pro. If you were a Premium subscriber, Grammarly's own plans page explains that switching to Pro cancels the old subscription with a prorated refund, and Pro includes the advanced writing suggestions Premium was known for, plus the newer AI features.
So when you see Premium and Pro used interchangeably in reviews, they refer to the same tier: the paid individual plan that sits between the free version and Grammarly's Enterprise offering. Everything in this article describes the current Pro plan as of 2026.
How the Free Trial Works
Grammarly's free trial is genuinely low-friction, which is not something I can say about every software trial. You sign up for Pro, pay nothing on day one, and get full access to the paid features for seven days. Grammarly even emails you a reminder two days before the trial ends, so you are not relying on a calendar note to avoid an unwanted charge. If you cancel before the trial expires, you pay nothing and your account drops back to the free plan. You keep your documents and your personal dictionary either way.
My advice is to time the trial deliberately. Do not start it on a quiet week. Start it when you have a real deadline in front of you, such as a client deliverable, a batch of blog posts, or a chapter you are revising, so the trial answers the only question that matters: does this tool catch problems in my actual writing that the free plan misses?
Grammarly Pricing in 2026
Grammarly's pricing is simpler than it used to be, but the billing cycle you choose changes the effective monthly cost significantly. Here is the current lineup from Grammarly's official plans and pricing page and its support documentation:
Free: $0. Basic spelling, grammar, and punctuation checks, tone detection, and a limited monthly allowance of AI prompts.
Pro, annual billing: $12 per member per month, billed as $144 per year.
Pro, quarterly billing: $60 every three months, which works out to $20 per month.
Pro, monthly billing: $30 per month with no commitment.
Enterprise: custom pricing for larger organizations, with unlimited AI prompts and admin controls. You have to contact sales.
The spread between $12 and $30 per month for the same product is the single most important pricing fact here. If the trial convinces you, the annual plan costs less than half the monthly rate. If you only need Grammarly for a season, such as a thesis, a job search, or one heavy client project, the monthly plan exists precisely so you can subscribe for a month or two and cancel.
What You Get With Pro
The free plan handles basic correctness: spelling, core grammar, and punctuation. Pro is about everything above the level of the typo. These are the features that justify the price, based on what Grammarly's current plans page includes in the tier.
Full-Sentence Rewrites and Tone Adjustment
Pro's most practical upgrade is that it stops pointing at problems and starts fixing them. It rewrites full sentences for clarity with one click, flags wordy or hard-to-read passages, and adjusts tone so an email reads as confident rather than blunt, or a report reads as formal rather than casual. For non-native English speakers, the fluency suggestions rephrase constructions that are technically correct but unnatural. This is the feature set I would evaluate hardest during the trial, because it is where Pro visibly outperforms the free plan on everyday writing.
Plagiarism and AI Text Detection
Pro includes a plagiarism checker that compares your text against billions of web pages, plus detection for AI-generated text. If you publish content professionally, hire freelance writers, or submit academic work, this alone can carry the subscription. It is the feature I would lean on when accepting work from writers I have not worked with before: not as a verdict, but as a prompt to look closer before anything goes out under your name.
AI Writing Prompts
Grammarly has folded generative AI into the product. The free plan includes a small monthly allowance of AI prompts, currently one hundred, while Pro raises that to two thousand prompts per member per month. You can use them to draft replies, generate outlines, brainstorm alternatives, and rework paragraphs in place. I treat this as a supporting feature rather than the reason to buy, because dedicated drafting workflows belong in purpose-built AI writing tools, but having rewrite-level AI inside every text field you type in is genuinely convenient.
It Works Where You Already Write
Grammarly's quiet advantage over most editing tools is coverage. It runs in the browser, as a desktop app, on mobile, and inside Microsoft Word and Outlook. If Word is where you live, I have a separate breakdown of how Grammarly works inside Word and what the add-in does well. The practical effect is that one subscription checks your emails, documents, social posts, and CMS drafts without copy-pasting anything. During the trial, install it everywhere you write, because coverage is half the value.
Where Pro Falls Short
No editing tool deserves blind trust, and Grammarly is no exception. Its suggestions are context-limited. It will occasionally flag a deliberate stylistic choice as an error, recommend a vocabulary swap that flattens your voice, or miss a mistake that a human editor would catch instantly. If you write fiction, be especially careful: accepting every suggestion will sand the character out of your prose. Treat it as a first-pass editor, not a final authority.
The price is also real money. At $144 per year, casual writers who send a few emails a day will not extract the value, and the free plan will serve them fine. And Grammarly is not a style coach in the deeper sense. If your weakness is bloated, unclear prose rather than grammar, a tool like the Hemingway editor attacks that specific problem, and writers who want deep-dive reports on their patterns often prefer ProWritingAid as an alternative. Neither replaces Grammarly's real-time, everywhere-you-type coverage, but they are worth knowing before you commit to a year.
Is the Free Trial Worth It?
Yes, without much hesitation. The trial costs nothing, cancellation is straightforward, and Grammarly reminds you before it charges you. The only thing at risk is a week of attention, and in exchange you get a definitive answer about a tool you will otherwise keep wondering about. Very few software decisions are this cheap to test.
Whether the paid plan is worth keeping after the trial is a narrower question. I would keep it if you fall into one of three groups: you write or edit professionally and ship work under deadline, you manage or hire writers and need plagiarism and AI checks, or you write extensively in English as a second language and benefit from fluency rewrites daily. If you write occasionally and mostly need typo protection, cancel before the trial ends and stay on the free plan. It remains one of the most capable free tiers in writing software, and you can always resubscribe for a heavy month at $30.
One more decision rule: judge the trial by corrections that changed your meaning or saved you embarrassment, not by the raw count of underlines. Grammarly flags a lot. What you are paying for is the subset of flags you would not have caught yourself. And remember that a proofreading layer is only one part of a working toolkit; a grammar checker pairs with, rather than replaces, a proper writing app for drafting and the rest of your stack.
Start the trial the week you have real work due, install Grammarly everywhere you type, and keep a running note of every catch that genuinely mattered. By day five you will know which list is longer: the catches or the false alarms. That is your answer, and it will be a better one than any review can give you, including mine.
The Grammarly Pro free trial provides an excellent opportunity to test the software’s advanced capabilities without commitment. Features such as full-sentence rewrites, tone adjustments, and plagiarism detection go far beyond the free plan’s typo-catching basics, making it a strong choice for professional writers, non-native English speakers, and those working under tight deadlines. The free trial runs for seven days, giving users full access to Pro features, while cancellation is straightforward and risk-free.
If you write professionally or manage content creation, the fluency rewrites, AI detection, and integrated plagiarism checker often justify the subscription. However, casual writers who primarily need core grammar checks can rely on the free plan. To make the most of the trial, use it during a high-stakes writing week, install Grammarly across all your writing platforms, and track how well it catches meaningful errors compared to alternatives. By the end of the trial, you will know whether Grammarly Pro meets your specific needs and offers value for your investment.
Related Resources
Frequently Asked Questions
Here are the most frequently asked questions about the Grammarly Premium free trial.
Does Grammarly Premium still exist?
Grammarly renamed its individual paid plan from Premium to Pro. Pro includes the advanced suggestions Premium offered, plus plagiarism detection, AI text detection, and a monthly allowance of generative AI prompts. Existing Premium subscribers who switch are refunded on a prorated basis.
How long is the Grammarly Pro free trial?
The free trial runs for seven days with no payment taken upfront. Grammarly sends an email reminder two days before the trial ends, and canceling before that point means you are never charged.
How much does Grammarly Pro cost in 2026?
Pro costs $12 per member per month when billed annually at $144 per year, $60 per quarter, or $30 on a month-to-month plan. The free plan costs nothing, and Enterprise pricing is quote-based.
What does the paid plan include that the free version does not?
The paid plan adds full-sentence rewrites, tone adjustment, fluency suggestions, unlimited personalized suggestions, plagiarism checking, AI-generated text detection, and a much larger monthly allowance of AI prompts. The free plan covers basic spelling, grammar, and punctuation.
Can I cancel Grammarly Pro after the trial?
Yes. You can cancel during the trial and pay nothing, or cancel a paid subscription and keep access until the end of the period you already paid for. Your account then reverts to the free plan and your documents remain accessible.
Is the free version of Grammarly good enough?
For casual writing, usually yes. The free plan catches typos, core grammar errors, and punctuation slips. Writers who publish professionally, work under deadlines, need plagiarism checks, or write heavily in English as a second language get the most from Pro.