Trinka

Trinka is an AI grammar checker and academic writing assistant for researchers and students, with plagiarism and AI detection and offline use.

Trinka corrects grammar, word choice and style in formal English, with checks built around academic and technical writing. Crimson AI Pvt. Ltd. builds it in Mumbai as part of the Crimson Interactive group. Researchers use it to bring a manuscript up to the language standard a journal expects. The same account also runs plagiarism and AI-content checks, so the last steps before submission happen in one place. The Grammar Checker works in Lite, Standard and advanced writing modes, with style preferences for APA, AMA, IEEE and other journal formats. The Paraphraser suggests new phrasings in a chosen tone, and the Consistency Checker flags uneven style and formatting across a document. Proofread File takes a Word or LaTeX file and returns a tracked-changes version to download. Plagiarism Check compares a draft with internet sources and open-access papers, while the AI Detector looks for machine-written passages. Citation Checker, Citation Formatter, Technical Checks and Journal Finder support the submission itself, and File Translation and AI-assisted writing help with drafting. Trinka is made for graduate students, academic researchers, journal authors and technical writers who work in English. Individuals start on a free plan and move to a yearly or monthly subscription as their volume grows. Credits pay for the heavier reports. Writers handling confidential or regulated material choose the Confidential Data plan. It adds an offline Windows app, instant data deletion and no AI training on their text. Universities buy DocuMark for academic integrity. Larger organisations agree an Enterprise contract by quote, with usage analytics, access management, API and SDK access, on-premise options and white labeling. Inside Microsoft Word, Trinka runs as a native app on Windows and Mac. In Chrome and Edge, the extensions check text on other websites. The offline Windows app checks Word documents and Outlook email on the computer itself. Teaching staff meet Trinka through DocuMark, which works with Google Docs and the university's learning management system. A typical job is the final pass on a thesis chapter. The writer uploads the Word file, settles the tracked changes, runs a plagiarism report and formats the reference list.