GrammarCheck.ai vs ProLexis
GrammarCheck.ai
grammarcheck.aiProLexis
prolexis.comSide by side
| Figure | GrammarCheck.ai | ProLexis |
|---|---|---|
| Price from | $2.50/mo | €20/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Plans published | 13 | 3 |
| Spec score · Grammar checkers | 9.2 (#10) | 8.5 (#27) |
| 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 | No |
| Headquarters | The Contact page lists an address at 71–75 Shelton Street, Covent Garden, London, WC2H 9JQ, United Kingdom. | Valbonne, France |
| Style suggestions | Yes | Yes |
| Support | The site offers contact-form support, live chat and 24/7 priority support on paid plans. | Technical assistance is available through a support form and at [email protected]; the form asks users to describe the issue without entering personal information in the issue fields. |
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
ProLexis
- ProLexis & Myriade€240 a year
- ProLexis & Myriade for macOS€240 a year
- ProLexis & Myriade for Windows€240 a year
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.