Grammarly review: the $12 headline, the no-refund rule and the training toggle

What Grammarly is now

Grammarly checks spelling, grammar and tone wherever you type, through browser extensions, desktop apps, mobile apps and add-ins for Microsoft Office and Google Docs. On top of that it offers AI rewriting and drafting, measured in prompts per month, plus plagiarism and AI-text detection on paid plans.

The company behind it has changed its name. The terms identify the contracting party as Superhuman Platform Inc., formerly known as Grammarly, Inc., the plans page footer reads Superhuman Platform, and Enterprise is described as available through Superhuman Go. The product you install is still called Grammarly.

What Pro actually costs

The plans page shows Pro at $12 USD with no billing period beside it and no indication that it is a yearly figure. Grammarly's support article spells out the real options:

• Monthly: $30 per member per month
• Quarterly: $60 per member every three months
• Yearly: $144 per member per year, which is where the $12 comes from

So the same plan costs $360 a year if you pay monthly and $144 if you commit for a year. The plans page says no payment is due today for the trial and promises an email reminder two days before the trial ends, which is better than many rivals, but check which billing period is selected before you start it.

Refunds: assume there are none

Grammarly's support center answers the refund question in one line: refunds are issued only if required by law. The terms back that up, calling all payments non-refundable and ruling out refunds or credits for partly used subscription periods or unused AI capacity. If you subscribed through Apple's App Store, any refund request goes to Apple.

Cancelling is straightforward by comparison. The terms say you can cancel at any time, keep paid features until the end of the current billing cycle, and then drop to the free plan. Given the no-refund stance, a yearly plan only makes sense once you know you will use it all year.

The training setting to change on day one

Grammarly has a control called Product Improvement and Training. Its support article says the setting is on by default for individual users, which covers Free, Premium and single-user Pro accounts, and for multi-user Pro teams bought on the website. Individuals can switch it off in their account privacy or data settings; on team accounts only an admin can, and members inherit the admin's choice.

Accounts bought through Grammarly's sales team, including Enterprise, Business and Education, have it switched off automatically. With the control off, Grammarly says the content you type is not used for training or product improvement for other users, though it may still collect non-content data such as writing statistics.

Who owns the writing

The terms are favorable here. You own your User Content, and when you use generative AI features your prompts and the resulting output are both treated as your content. Grammarly receives a license to use that content to provide and improve its services, and the terms note that your acceptance or rejection of suggestions may help train its suggestion engine. Organizations are limited to internal business use. Disputes go to individual arbitration under California law, with a 30-day opt-out for new users; those rules do not apply in the EEA.

Who should pay for it

If you mostly need clean spelling and grammar, the free plan covers it, with 100 AI prompts a month as a bonus. Pro earns its price when you lean on full-sentence rewrites, tone adjustment, plagiarism checks or the 2,000 monthly prompts, and when you are confident enough to commit for a year at $144. Teams that care about confidentiality should either buy through sales, where the training control starts off, or have an admin switch it off before members join. Whatever you choose, treat the purchase as final: the documents we read leave no room for a change of heart.