Question: Can you recommend a comprehensive writing tool that includes a grammar checker, plagiarism detector, and paraphrasing features?

If you're looking for a full-fledged writing assistant with a grammar checker, plagiarism detector and paraphrasing tool, QuillBot is a good choice. The AI-powered tool suite spans the writing process from first draft to final edit with a grammar checker, plagiarism checker, paraphraser and other writing tools. The Premium tier adds features like unlimited paraphrasing, more advanced grammar suggestions and custom summaries.

Another powerful tool is Grammarly, which offers personalized guidance and text generation to help you write more efficiently and accurately. It offers contextual suggestions, plagiarism detection and citation support. Grammarly is built into many apps and websites and works on all devices. Its pricing options range from free to enterprise, so you can find a plan that suits your needs and budget.

ProWritingAid is a general-purpose writing assistant with a range of AI-powered tools to improve writing style, structure and impact. It includes tools like real-time checks, readability tests and plagiarism checks. ProWritingAid works with Microsoft Word, Google Docs, Scrivener and major web browsers, so it's a good option for professional writers, students and businesspeople.

For academic and technical writing, Trinka is a very specialized tool. It's got advanced grammar checking, a more powerful plagiarism checker and a paraphraser that tries to preserve the original meaning. Trinka is geared for academic writing, with tools that scrutinize sentence structure and suggest the best word choices for clarity, concision and impact. It works with MS Word and offers enterprise-level options for high-end data security and customization.