Grammarly offers proofreading, paragraph rewrites and tone suggestions for individuals, teams and larger organizations, with a free plan.
Free plan · Paid plans: see official pricing
Trinka
Trinka is an AI writing assistant for grammar, proofreading, paraphrasing, and plagiarism or AI detection in academic and technical writing, for students, researchers, and professionals.
- Free plan
- Web app · Browser extension · Desktop · Plugin or MCP
- Verified 16 Oct 2026
What Trinka does
Trinka is an AI writing assistant that offers grammar checking, proofreading, paraphrasing, plagiarism and AI detection for academic and technical writing. It also includes citation tools and style guide corrections for APA, IEEE, ACS and AGU on Premium and higher plans. Trinka is offered on a freemium model with a free Basic plan limited to 5000 words per month, and it can be used through a web app, browser extension, desktop app, or plugin.
Built for
- students, researchers, academics, and professionals
- publishers
- institutions
Key features
- Grammar checker
- Paraphrasing tool
- Plagiarism and AI detection
- Citation tools
- Style guide corrections (APA, IEEE, ACS, AGU) (Premium and above)
- File translation (30+ languages) (Premium Plus and above)
- Offline grammar checker app (Confidential Data plan)
- Microsoft Word native app (Premium)
Pros and cons
Pros
- Trinka has a free Basic plan limited to 5000 words per month, and signup is self-serve.
- Trinka can be used through a web app, browser extension, desktop app, and plugin or MCP.
- Trinka includes grammar checking, paraphrasing, plagiarism and AI detection, and citation tools.
Cons
- Style guide corrections for APA, IEEE, ACS and AGU require the Premium plan or higher.
- File translation in 30+ languages requires the Premium Plus plan or higher.
- The Confidential Data and Enterprise plans are priced only on request through contact sales.
- The offline grammar checker app is available only on the Confidential Data plan.
Where Trinka is listed
Trinka is listed under grading and feedback in Education AI tools.
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