If you're looking for a Grammarly alternative, QuillBot is another option worth considering. It's got a full suite of tools, including a paraphraser, grammar checker, plagiarism detector and citation builder. It also can be integrated with other apps and websites, so it's good for writers who work in a variety of places. The Premium subscription adds features like unlimited paraphrasing and custom summaries.
Another powerful alternative is ProWritingAid. The tool offers detailed AI-generated reports, real-time checks and readability scores. It can be used in conjunction with writing software like Microsoft Word, Google Docs and Scrivener. ProWritingAid has a range of pricing options for different levels of writing help.
If you're writing academically, Paperpal offers context-specific language suggestions and plagiarism detection. It also can translate academic material into multiple languages and check if your paper is ready for submission. The tool is geared for students and researchers, with a focus on data privacy and the ISO/IEC 27001:2013 certification.