GrammarCheck.ai vs ProWritingAid
GrammarCheck.ai
grammarcheck.ai
ProWritingAid
prowritingaid.comSide by side
| Figure | GrammarCheck.ai | ProWritingAid |
|---|---|---|
| Price from | $2.50/mo | $10/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Linux | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | — |
| Plans published | 13 | 13 |
| Spec score · AI Grammar Checkers | 9.4 (#1) | 8.6 (#11) |
| Spec score · Grammar checkers | 9.2 (#10) | 9.0 (#14) |
| Browser extension | The Chromium extension accepts typed, pasted, uploaded or selected web text and provides grammar, spelling and readability checking. | Yes |
| Desktop app | Yes | Yes |
| Free plan | Yes | Yes |
| Mobile app | Yes | No |
| Refund policy | Refunds are generally limited to the current unused plan, duplicate charges or an incorrectly selected plan replaced by the correct one. | Yearly and lifetime plans may be refunded within three days; monthly plans are not refundable. |
| Style suggestions | Yes | Yes |
Plans
GrammarCheck.ai
- Free PlanFree
- Lite$4 a month
- Pro$7 a month
- Free PlanFree
- Lite Premium$2.50 a month
- Lite Monthly$4 a month
- Pro Premium$4 a month
- API Tester$7 a month
- Pro Monthly$7 a month
- API Basic$10 a month
ProWritingAid
- FreeFree
- Premium$30 a month
- Premium Pro$36 a month
- Premium$120 a year
- Premium Pro$144 a year
- Premium$399, paid once
- Premium Pro$699, paid once
- Premium LifetimePrice not published
- Premium MonthlyPrice not published
- Premium Pro LifetimePrice not published
In their own words
GrammarCheck.ai
GrammarCheck.ai checks grammar, spelling, and punctuation, highlighting mistakes and suggesting replacements; a one-click “Fix All Errors” action is also listed. It supports English variants for the US, UK, Australia, and Canada, as well as Spanish, German, French, Portuguese, Italian, and Dutch. Other listed tools include punctuation checking, paraphrasing, plagiarism checking, AI detection, AI humanizing, and summarizing. The service is available on web, iOS, Android, and Linux, with browser extension, desktop app, and mobile app options. Its free plan allows up to 650 words per submission, while Lite allows 2,000 and Pro 6,000. The plans list $4 a month for Lite and $7 a month for Pro; the pricing note separately says paid plans start at $2.50/mo (annual). The service does not offer a free trial, though tools can be used for free. Guest users can make three submissions per minute. The site identifies students, book authors, bloggers, and non-native English speakers as potential users.
ProWritingAid
ProWritingAid provides grammar and style suggestions through browser extensions and a desktop editor. It works with Word, Google Docs, Scrivener, Chrome, Firefox, and Edge, and browser extensions are available for Chrome, Firefox, and Edge. The free account handles 500 words at a time and includes two line-editing runs, ten rephrases, three Sparks, and three Creative Nudges per day. Premium and Premium Pro support documents of any length. Premium includes document sharing, real-time comments, and more than 25 writing analysis reports. Its plagiarism checker compares work against webpages, published works, and academic papers. The product supports English only, including general, British, US, Australian, and Canadian English. ProWritingAid says text entered into its editor is not kept on processing servers, is encrypted during processing, and is not used to train algorithms. The free plan is available; listed paid plans include Premium at $30 a month and Premium Pro at $36 a month, both billed monthly.