Grammar and paraphrasing
Grammarly: review, pricing, data and alternatives
Grammarly helps people write and revise texts. It corrects spelling and grammar, rephrases sentences, adjusts message tone, identifies similarities with other texts, and produces initial drafts. A free tier exists; the first paid plan costs $12 per month. Access and transparency score: 73/100, #2 of 11 in its category.
What is Grammarly?
Grammarly helps people write and revise texts. It corrects spelling and grammar, rephrases sentences, adjusts message tone, identifies similarities with other texts, and produces initial drafts.
According to its documentation, Grammarly lets you:
- correct spelling and grammar
- rephrase sentences
- adjust the tone of a message
- identify similarities with other texts
- produce an initial draft
We file it under Grammar and paraphrasing, the category of tools to fix and rephrase text, and it also overlaps with aI writing tools and aI content detection. The category lists 11 verified tools on this site.
The publisher is Superhuman Platform Inc., based in United States. The service launched in 2009, which gives it some track record.
Who is it for?
It is mostly useful to these profiles: content writers, students, marketers, and sales teams. The need it covers is simple to state: fix and rephrase text.
Grammarly is a good candidate if:
- you want to try before paying
- you also work from your phone
The best test is a concrete case from your daily work: if the tool does not beat your current method within a week, move on to an alternative.
How much does Grammarly cost?
Pricing model: freemium (limited free use, then paid). A free plan is offered, usually limited in volume or features.
The first paid plan costs $12 per month (Pro, per member; monthly equivalent of an annual bill of USD 144), according to the pricing page, checked on October 24, 2026.
Per month, that is more expensive than the category median ($8 per month, based on tools with a published price).
To estimate what the same work would cost done directly with an AI model, use our API price calculator. Prices change often: always check the official site before subscribing.
Data and privacy
According to its privacy policy, data is processed in the United States.
For professional use, check that a data processing agreement (DPA) is offered, and do not send customers' personal data or confidential documents without one.
Exporting your content: yes (details on the official site). Being able to get your data back makes switching tools easier later.
Three habits apply to every AI tool:
- turn off the use of your content for training if the option exists
- use a work account separate from your personal account
- review everything the tool produces before publishing or sending it
Platforms, languages and API
Grammarly runs on: web browser, Windows, macOS, iPhone and iPad, Android, and browser extension.
Interface languages: English, French, German, Italian, Portuguese, and Spanish.
API availability is not documented.
How we scored it
Our 73/100 score does not judge output quality: it measures what can be publicly verified about access to the tool, its openness and how far the publisher can be trusted.
| Criterion | Points | What counts |
|---|---|---|
| Access | 30/30 | free tier, published price, French interface |
| Openness | 10/30 | API, data export, open code |
| Trust | 33/40 | identified publisher, declared hosting, age, presence in reference lists |
The full calculation is explained on our method page.
Comparison with alternatives
Grammarly against other tools in the grammar and paraphrasing category:
| Tool | Free | Entry price | API | Score |
|---|---|---|---|---|
| Grammarly | Yes | $12 per month | – | 73 |
| LanguageTool | Yes | not published | Yes | 75 |
| Wordtune | Yes | $6.99 per month | Yes | 71 |
| WriteHuman | Yes | $12 per month | Yes | 68 |
| Quillbot | Yes | €8.33 per month | No | 61 |
| editGPT | Yes | $96 per year | – | 61 |
| HumanizeAI.com | Yes | $14 per month | Yes | 58 |
| WordfixerBot | Yes | $48 per year | – | 58 |
Verdict
Grammarly is among the most accessible and transparent tools in its category.
Strengths
- Free tier to try it
- Established since 2009
- Available on many platforms
Limitations
- More expensive than its category median
Avoid if…
- You handle sensitive personal data without a processing agreement
Alternatives
- LanguageToolfree tier
- Wordtunefree tier
- WriteHumanfree tier
- Quillbotfree tier
- editGPTfree tier
- HumanizeAI.comfree tier
Categories and jobs
Learn more
Frequently asked questions
Is Grammarly free?
Yes, a free plan exists, with usage limits. The first paid plan costs $12 per month.
Where is Grammarly data stored?
According to the publisher, in the United States.
Does Grammarly have an API?
It is not documented.
What are the alternatives to Grammarly?
In the same category: LanguageTool, Wordtune, WriteHuman, and Quillbot.
Grammarly or LanguageTool: which one to choose?
Our score is 73/100 for Grammarly and 75/100 for LanguageTool. Try both on the same task before paying.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score