Grammarly vs Trinka AI
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Grammarly
Grammar, tone and rewriting help wherever you type, now part of Superh...
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Trinka AI
Grammar and style checking tuned for academic and technical English
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| RECATOOLS Score | 7.8 / 10 | 6.9 / 10 |
| Capability | ||
| Value for money | ||
| Ease of use | ||
| ASEAN readiness | ||
| API quality | ||
| Pricing | Freemium | Freemium |
| Free tier | Free plan: spelling and grammar correction, tone detection and 100 AI prompts a month | Basic: free and never expires, no card; 5,000 words, 4 proofread files, 5 AI writing requests and 1 plagiarism score a month |
| Paid from | $12/month for Pro billed annually ($144/year); $30 month to month | $20/month for Premium billed monthly, or $48/year billed annually |
| Has API | ✗ | ✓ |
| Open source | ✗ | ✗ |
| Free to use | ✓ | ✓ |
| Users | over 40 million daily active users (2025) | — |
| Founded | 2009 | 2020 |
| Maker | Superhuman Platform Inc. (formerly Grammarly) | Crimson AI Pvt. Ltd. |
| Verdict | Grammarly remains the most widely deployed writing checker, and the core job of catching mistakes and adjusting tone in almost any text box is as reliable as ever. Language support has widened beyond English, and the fre... |
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 ann... |
| Full review → | Full review → |
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Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.