If you're looking for something different than Voilà, HyperWrite is another option. HyperWrite is an AI writing assistant with a range of tools, including Flexible AutoWrite, Summarizer and Email Responder. It can help with communication, research and writing style, and is geared for students, freelancers, academics and businesses. HyperWrite also can help with research as you write and learn your writing style to help you write faster.
Another option is Rytr. Rytr offers a range of tools, including editing, grammar checking and plagiarism detection. It also has SEO tools, like generators for meta title and description, and tools to optimize content with keyword extraction. Rytr offers a free plan with more than 40 use cases and 20 tones, as well as Premium and Unlimited plans with more features.
If you need an academic bent, Jenni is worth a look. Jenni offers AI tools for academic writing, including editing, citation management and generation of content from PDFs. It supports multiple citation styles, and has paraphrasing and rewriting tools, too, so it's good for essays, research papers and literature reviews.
Last, Ginger is a general-purpose writing assistant with advanced grammar and spell checking, rephrase tools and context-based corrections. It works in a variety of places, including Gmail, Facebook and LinkedIn, and has business and education versions. Ginger's breadth of tools makes it a good option if you want to improve your writing productivity.