Compare Duck.ai vs ProWritingAid vs Paperless-ngx
| Feature | Duck.ai | ProWritingAid | Paperless-ngx |
|---|---|---|---|
| Description | Duck.ai is DuckDuckGo private AI chat. It helps you ask questions and draft answers without building an advertising profile around your prompts, so you can get help while keeping everyday browsing privacy habits. | ProWritingAid helps writers improve grammar, style, and story structure with reports and AI rewrites. A free tier lets you start, and Premium plans add deeper critique tools for people finishing books and long documents. | A document manager that scans, OCRs and auto-tags your paperwork, with optional AI chat. Built for: Small businesses going paperless. Format: Self-hosted web app (Docker). License: GPL-3.0. Open source on GitHub (46,518 stars as of 2026-10-11). |
| Pricing | Free private AI chat (DuckDuckGo Duck.ai) | Free tier available; Premium about $30/mo monthly or $10/mo billed yearly ($120); Premium Pro about $36/mo monthly or $12/mo yearly; lifetime options listed | Free and open source; self-hosting, model or API costs may apply |
| Main category | Chat assistants | Writing | Research and notes |
| Website | Visit Duck.ai | Visit ProWritingAid | Visit Paperless-ngx |
| Info last checked | October 14, 2026 | October 14, 2026 | October 12, 2026 |
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