How much does Trinka cost?
Paid plans start at
$41.67/mo billed yearly
- Free plan
- Not stated
- Free trial
- 7-day free trial of the Confidential Data Plan
- Enterprise
- Contact sales
Read from www.trinka.ai/enterprise/confidential-data-plan- on Oct 29, 2026. Price changed? Tell usSee the line each price came from
In your favor
- Free trial. 7-day free trial of the Confidential Data Plan
Watch out for
- No refunds on a long commitment. No refunds for purchased subscriptions
How you buy and get started
Self-serve + salesButtons on their site: Start for Free, Upgrade to Premium, Get Premium Plus, Start 7-Day Free Trial
- Sign up
- Self-serve signup via cloud.trinka.ai "Start for Free"
- Setup
- Not stated
- When sales steps in
- Teams of 5 or more users contact sales "For large teams of 5 or more users, Contact Us"
- Support
- Email support "support@trinka.ai"
What Trinka does
Trinka offers grammar and language checks, paraphrasing, file proofreading, AI writing, translation and consistency checks, with Word and browser add-ins and a desktop app. It sells Premium, Premium Plus and a Confidential Data Plan that does not store or train on user data.
- Good for
- Academics, researchers, publishers, institutions and organizations handling confidential content that need academic and technical writing help.
- Channels
- Web app (Cloud), MS Word for Windows add-in, MS Word for Mac add-in (Lite), Google Chrome plug-in, Mozilla Firefox plug-in, Microsoft Edge plug-in, Windows App, Offline desktop app, API / SDK, On-premise
- Main product
- Trinka AI writing assistant (grammar checker, paraphraser, proofreading, AI writing, plagiarism and AI detection)
- Also includes
- Grammar Checker, Paraphraser, Consistency Check, File Proofreading, AI Writing, Style Guide (APA, IEEE, ACS, AGU)
- Connects to
- Microsoft Word, Google Chrome, Mozilla Firefox, Microsoft Edge
- Public API
- Yes
- MCP server
- Not stated
- Grammar and spelling checks
Grammar & Spelling Checks
- Tone and style suggestions
The advanced grammar and style suggestions have helped me refine my work
- AI rewriting and generation
Paraphrasing & rewriting
- Custom style guide enforcementNot stated
- Browser extension
MS Word & Browser add-ins
- Word and Google Docs add-ins
Native App for Microsoft Word
- Multiple languages supported
Includes File Translation (30+ languages)
- Admin controls and SSONot stated
The same 8 checks appear on every tool in AI grammar checkers. Each tick quotes the vendor's own site.
Security and your data
| Question | Their answer | Where it says so |
|---|---|---|
| Trains AI on your data? | no (Confidential Data Plan and paid plans) | "Data of users on our paid plans is not used for any training of our AI models."security |
| HIPAA (signs a BAA) | available | "If your need to sign a Business Associate Agreements (BAA), contact us."security |
| SOC 2 | SOC 2 Type 2 certified | "Trinka is SOC 2 (Type 2) certified"security |
| GDPR | GDPR compliant | "GDPR (General Data Protection Regulation), and more."pricing |
| CCPA | Not stated | |
| PCI | Not stated | |
| ISO 27001 | ISO 27001:2022 certified | "ISO 27001:2022"security |
| Single sign-on | Not stated | |
| Trust center | Trust Center page | "# Trust Center"security |
Security answers are the vendor's own claims, quoted. We don't audit them.
Every plan
| Plan | Monthly | Billed yearly | Included | Over the allowance | Where it says so |
|---|---|---|---|---|---|
| Confidential Data Plan/year | – | $41.67per month | 3000 AI writing requests per month | – | "Billed $500 annually" |
| Premium | – | – | 120 proofread files per year | – | "Up to 120 files/year (editable file)." |
| Premium Plus | – | – | 240 proofread files per year | – | "Up to 240 files/year (editable file)." |
Fine print
- Billing increment
- Not stated
- Billed beyond usage
- Not stated
- Contract
- Not stated
- Refunds
- No refunds for purchased subscriptions "Refunds are not allowed for purchased subscriptions."
- Auto renew
- Subscriptions renew unless cancelled "you can cancel it whenever you wish to avoid getting charged for the renewal of the subscription"
- Price change notice
- Not stated
"Not stated" means we read their pricing page and terms and they don't say.
About the company
- Legal name
- Crimson AI Pvt. Ltd.
- Online since
- Oct 13, 2019 Domain registration date
- Backing
- "Developed by Enago, 20+ year legacy of editing manuscripts" their words
Trinka alternatives
Ginger Software$3.75 /moFree plan · checked Oct 29, 2026
LanguageTool$5.83 /moFree plan · checked Oct 29, 2026
Outwrite$7.95 /moFree plan · checked Oct 29, 2026
Linguix$11.67 /moFree plan · checked Oct 29, 2026
ProWritingAid$10 /moFree plan · checked Oct 29, 2026
Wordvice AI$9.95 /moFree plan · checked Oct 29, 2026
Sapling$12 /moFree plan · checked Oct 29, 2026
Hemingway EditorQuotechecked Oct 29, 2026Reviews elsewhere
We link to reviews instead of copying ratings: those sites don't allow reuse, and we don't test products ourselves.
Questions
Is Trinka free?
There's no free plan. Free trial: 7-day free trial of the Confidential Data Plan.
How much does Trinka cost?
Paid plans start at $41.67 per month billed yearly.
Does Trinka train AI on your data?
No (confidential data plan and paid plans), according to Trinka: "Data of users on our paid plans is not used for any training of our AI models."
Is Trinka HIPAA compliant?
Trinka says a HIPAA BAA is available.