Trinka
Academic and technical writing help for grammar, files, citations, and integrity checks.
Trinka is the active product name.
About Trinka
Trinka is an AI writing and grammar assistant for academic and technical work. It checks grammar, language, style, and consistency across a document. Word and LaTeX files can be proofread without stripping their formatting, tables, structure, or code. Researchers can also screen citations for retracted, unverified, predatory, duplicate, or old sources. The free Basic plan covers 5,000 words of writing assistance each month, four file or report proofreading jobs, five AI writing requests, and one plagiarism score. Paid plans increase these allowances and add deeper editing modes, named academic style guides, translation, plus more plagiarism or AI-detection capacity. Premium says data is deleted after 90 days and is not used to train AI. The $500 yearly Confidential Data plan instead includes instant deletion and an offline grammar checker. It fits manuscripts, theses, and technical reports, and the monthly request and credit limits are an important constraint for frequent use.
Best for
Best use cases
Grammar and style review before submission
Formatted Word or LaTeX file proofreading
Citation, plagiarism, or AI-content risk checks
Compare before choosing
Basic has firm monthly word and request caps
Premium adds unlimited grammar and paraphrasing assistance
Confidential Data prioritizes instant deletion and offline checking
Features
Polish academic manuscripts
Check grammar, language, style, and consistency before journal submission, with style-guide corrections available on paid plans.
Proofread formatted files
Review Word or LaTeX documents while retaining formatting, tables, document structure, and code integrity.
Check research integrity
Review citations for retracted, unverified, predatory, duplicate, or old sources, and use plan allowances for plagiarism or AI-content checks.
Pros
- The always-free Basic plan needs no credit card and covers 5,000 words per month.
- Word and LaTeX proofreading retains formatting, tables, structure, and code.
- Paid tiers combine academic style guides with citation, plagiarism, and AI-content checks.
Cons
- Basic is limited to five AI writing requests and four file proofreading jobs per month.
- Premium still caps file proofreading, AI requests, and plagiarism scores despite broader writing access.
- The strongest privacy controls require the Confidential Data plan at $500 per year.
Pricing Plans
Basic
- Writing assistance for 5,000 words per month
- 4 proofread files or reports per month using credits
- 5 AI writing requests per month
- Lite and Standard modes
- Standard data privacy
- 1 plagiarism score per month
Premium
- Everything in Basic
- Unlimited grammar and paraphrasing assistance
- 10 proofread files or reports per month using credits
- 25 AI writing requests per month
- Power Editing and Paraphrase modes
- AMA, APA, IEEE, ACS, and AGU style-guide corrections
- Windows desktop app for Microsoft Word and Outlook
- 90-day deletion and no AI training
- 2 plagiarism scores per month
Premium Plus
- Everything in Premium
- 240 pages of standard plagiarism or AI detection
- 600 citation formatting uses per year
- 20 proofread files or reports per month using credits
- 1,000 AI writing requests per month
- File translation from 30+ languages to English or Spanish
Confidential Data
- Everything in Premium Plus
- Instant data deletion
- No AI training on your data
- Offline grammar checker app
- Data transparency and controls
- 1,000 pages of standard plagiarism or AI detection
- 1 advanced plagiarism report per month using credits
* Pricing information is for reference only. Please refer to the latest announcement on Trinka's official website.