Trinka AI
Grammar and style checking tuned for academic and technical English
Overview
Trinka AI, from Crimson AI in the Enago group, is a writing assistant for academic and technical English. It checks grammar, terminology and style-guide rules, proofreads Word and LaTeX files, and adds plagiarism and AI detection, citation tools and translation. A free plan covers 5,000 words a month; a Confidential Data plan offers an offline app and no AI training.
Pricing
Pricing shown for reference only. These figures reflect RECATOOLS research as of 14 Oct 2026 and may be out of date or incomplete. This is not financial or purchasing advice — always confirm the current price on the provider’s official website before making any decision.
- 5,000 words a month
- Up to 4 proofread files or reports a month on credits
- 5 AI writing requests a month
- 1 plagiarism score a month
- All writing features and advanced modes
- Style guides (APA, IEEE, ACS, AGU)
- Native app for Microsoft Word
- Up to 120 editable proofread files a year
- Double credits
- File translation in 30+ languages
- 240 pages a year of plagiarism or AI-detection checks
- 600 citation formats a year
- Offline grammar checker app
- Real-time data deletion and no AI training
- SOC2, HIPAA, ISO and GDPR compliance
- 1,000 pages a year of plagiarism or AI detection
- Usage analytics dashboard
- User access management
- API, SDK and on-premise integrations
- DocuMark academic-integrity tools for universities
What you can produce with Trinka AI
- Grammar, technical-spelling and terminology-consistency corrections for academic and technical English
- Style-guide corrections to APA, AMA, ACS, AGU or IEEE
- Word and LaTeX files proofread with tracked changes
- Plagiarism and AI-content detection reports
- Citations checked and formatted, and target journals suggested
- Offline, no-training checking for sensitive manuscripts on the Confidential Data plan
- Grammar checks embedded in other products through the Trinka API and SDK
Trinka is the specialist choice for scholarly English: style-guide corrections, technical spelling, LaTeX and Word proofreading with tracked changes, and plagiarism and AI-detection checks bundled into an inexpensive annual plan. The Confidential Data plan, with an offline app, real-time deletion and no AI training, is a genuine draw for unpublished or sensitive manuscripts.
The best value needs annual billing, heavier checks run on credits, and the tone is deliberately formal. A strong pick for researchers and non-native English authors; overkill for everyday writing.
What we found
Trinka is an AI writing assistant for academic and technical English, built by Crimson AI, part of the Mumbai-based Crimson Interactive group that also runs the Enago editing business. Enago announced it on 28 April 2020. It checks grammar, technical spelling, terminology consistency and inclusive language, applies APA, AMA, ACS, AGU and IEEE style guides, proofreads Word and LaTeX files with tracked changes, and adds a paraphraser, translation, citation checking and formatting, a journal finder and AI writing requests. It runs on the web, in Word on Windows and Mac, in Chrome, Firefox and Edge, and as a Windows app.
Prices were re-read on 14 Oct 2026. The free Basic plan never expires and needs no card: 5,000 words a month, four proofread files, five AI writing requests and one plagiarism score. Premium costs $20 billed monthly or $48 a year, shown against $80, for unlimited writing help and the native Word app. Premium Plus is $125 a year and adds 240 pages of plagiarism or AI-detection checks, file translation and 600 citation formats. The Confidential Data plan is listed at $500 a year, currently offered at $300, and adds an offline grammar app, real-time data deletion and a promise of no AI training. Extra usage runs on credits.
Trinka also sells to institutions and publishers. DocuMark records how a student's text was written, separating typed, pasted and AI-generated passages, and Enago has announced manuscript-checking work with IEEE and the Royal Society of Chemistry. Teams can buy API, SDK and on-premise integrations, documented at developer.trinka.ai.
Earlier versions summarised a review consensus on G2, Capterra and SoftwareSuggest, including praise from pharma users; none of it could be read today and it is removed. Trinka calls its AI detector the best on the RAID leaderboard, which is its own claim. It suits researchers and non-native English authors who want formal precision; casual writers will find it stiff.
Compiled by RECATOOLS from public sources: vendor documentation and pricing, code repositories and published reporting.
About this listing
This entry was compiled from publicly available data including Trinka AI's official website, press releases, documentation, and reputable third-party publications. RECATOOLS is not affiliated with Trinka AI unless explicitly stated.
Third-party AI tools update their pricing, features, availability, and policies frequently. Information here may be outdated by the time you read this — we make reasonable efforts to keep listings current, but cannot guarantee absolute accuracy.
For the latest details, please refer to Trinka AI directly →
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