Trinka AI

Trinka AI is an AI-powered grammar and language enhancement writing assistant developed by Cactus Communications, purpose-built for academic and technical writers who need corrections that respect scholarly writing conventions rather than consumer prose rules. Trusted by researchers in 125+ countries and by leading academic publishers worldwide, Trinka is trained across 1,300+ subject areas to understand discipline-specific terminology, formal academic tone, and publication-ready language standards that general grammar tools like Grammarly cannot replicate.

Beyond grammar and spell checking, Trinka offers a comprehensive suite for the full academic manuscript workflow: a Consistency Check for terminology and formatting uniformity, Proofread File for full-document tracked-changes editing, Plagiarism Check, an AI Content Detector, a Journal Finder that matches manuscripts to appropriate publications, Citation Formatter in 600+ styles, and File Translation from 30+ languages to English or Spanish for international researchers. Its DocuMark feature provides academic integrity verification and authorship proof for institutions. For professionals working with sensitive unpublished data, the Confidential Data Plan provides instant data deletion, zero AI training on submitted text, and API/SDK and on-premise deployment options — making Trinka one of the few writing tools with an explicit privacy-first enterprise tier.

Trinka is the right choice for academic researchers, PhD students, technical writers, and non-native English researchers who need a writing assistant that genuinely understands the standards of formal scholarly communication, and for institutions and publishers needing a scalable, privacy-compliant academic writing platform.

Trinka AI offers a free Basic plan with 5,000 words/month grammar check, 5 AI-assisted writing requests, and 1 plagiarism score — no credit card required.

Premium at $20/month: unlimited grammar checking and paraphrasing, up to 10 proofread files/month, 100 AI-assisted writing requests, advanced data privacy with 90-day auto-deletion and no AI training, Windows desktop app for MS Word and Outlook, and 2 plagiarism scores/month.

Premium Plus at $10.42/month (billed annually at $125/year): everything in Premium plus 120 pages of plagiarism/AI detection, 600 citation formatting credits/year, 3,000 AI-assisted writing requests/month, and file translation across 30+ languages.

Confidential Data Plan at $41.67/month (billed annually at $500/year): everything in Premium Plus plus instant data deletion, no AI training, API/SDK access, on-premise deployment, usage analytics dashboard, and user access management.

Enterprise and Institutional plans available with custom pricing. Contact Trinka through trinka.ai for institution-wide licensing.