Grammarly vs Trinka
Grammarly
grammarly.comTrinka
trinka.aiSide by side
| Figure | Grammarly | Trinka |
|---|---|---|
| Price from | $12/mo | $6.67/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 4 | 7 |
| Spec score · Grammar checkers | 9.2 (#6) | 9.1 (#11) |
| Spec score · AI writing assistants | 9.2 (#2) | 9.0 (#9) |
| Spec score · AI Grammar Checkers | 9.0 (#4) | 8.5 (#14) |
| Spec score · Proofreading Software | 9.0 (#5) | 8.4 (#16) |
| Spec score · AI Detection Software | 8.9 (#6) | 8.5 (#11) |
| Spec score · Academic Writing Software | 9.0 (#3) | 8.5 (#13) |
| Browser extension | Yes | Yes |
| Desktop app | Yes | Yes |
| Free plan | Yes | Yes |
| Languages supported | 24 | 2 |
| Style suggestions | Yes | Yes |
| Tone detection | Yes | Yes |
| Writing features | Paragraph rewrites, tone suggestions, proofreading, humanizer, and AI detector agents | Its features include grammar checks, paraphrasing, consistency checks, file proofreading, AI-assisted writing, citation tools, plagiarism checks, and a journal finder. |
Plans
Grammarly
- FreeFree
- Pro$12 a month
- EnterprisePriced on request
- PlusPrice not published
Trinka
- Premium$20 a month
- Premium$80 a year
- Confidential Data$300 a year
- BasicFree
- Confidential Data$300 a year
- PremiumPrice not published
- Premium PlusPrice not published
In their own words
Grammarly
Grammarly is a writing assistant from Grammarly, founded in 2009 and now part of Superhuman. Its listed tools include proofreading, paragraph rewrites, tone suggestions, a humanizer, and AI detector agents. Style suggestions and tone detection are listed, alongside brand voice controls and team collaboration. The Free plan is free and includes 100 AI prompts per month; Pro is $12 a month with 2,000 AI prompts per member per month. Plus is listed at ₹392 INR per member per month when billed annually, and ₹1,000 when billed monthly, and is available only via local payment methods. Grammarly lists 24 supported languages, browser compatibility with Chrome, Safari, Firefox, and Edge, and mobile apps for iPhone, iPad, and Android. Desktop apps and a browser extension are also listed. Grammarly says user content is not sold, monetized for advertising, or used to train third-party models. Its SOC 2 Type 2 report covers security, privacy, availability, and confidentiality controls.
Trinka
Trinka is an AI grammar correction and language enhancement assistant for academic and technical writing. It checks grammar, suggests paraphrases, reviews consistency and can proofread uploaded MS Word documents for download. Other tools include AI-assisted writing, citation features, plagiarism checks and a journal finder. Trinka Cloud checks English and Spanish grammar and detects the language automatically. Its browser plugin supports writing in Google Docs, Authorea, Evernote and Medium; listed platform options also include web, API, desktop and self-hosted access. Institution plans list LMS and SSO integrations such as Canvas, Moodle, Blackboard and D2L. The free Basic plan does not expire, but monthly usage limits apply. Premium costs $20 a month, billed monthly, and includes up to 120 proofread files per year and 25 AI writing requests per month. Confidential Data costs $300 a year with annual billing. Trinka says user data is encrypted in transit and at rest. Its Trust Center says paid-plan data is not used to train AI models and Confidential Data Plan data is deleted after processing.