AnswerThis
AI research assistant with a built-in AI paraphraser that rewrites academic text in multiple styles while preserving meaning and citations.
- Freemium
- Web
- AI Tools for Paraphrasing
- Free plan available
- No credit card
What is AnswerThis?
Key features
AI paraphraser with multiple styles (academic, fluent, formal, simple, professional, scientific, technical) and adjustable length/variation
Search across 250M+ research papers with direct citations
AI-drafted literature reviews and systematic reviews
Automatic citation formatting in 2000+ styles (APA, MLA, Chicago)
PDF chat and paper summarization
Zotero and Mendeley integration
Pros & cons
Advantages
- Free tier plus a no-sign-up paraphraser you can try instantly
- Paraphraser preserves meaning and citations and is tuned for academic writing
- Backed by Y Combinator with a large stated user base (200,000+ researchers)
- Integrates with reference managers (Zotero, Mendeley)
Limitations
- Primarily a research assistant, so paraphrasing is a secondary feature rather than the core product
- Unlimited paraphrasing and full research features require a paid plan ($35+/month)
- Free tier is limited (e.g., 5 basic queries)
- Optimized for academic/scientific text, less suited to general or marketing copy
Use cases
Paraphrasing academic papers, literature reviews, and research summaries
Simplifying or rephrasing technical and scientific text
Drafting cited literature reviews and abstracts
Organizing, summarizing, and citing research sources
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- Free plan available
- No credit card