If you're looking for a replacement for InstaText, Grammarly is a good choice. This AI-powered writing assistant offers personalized advice and contextual suggestions to help you write more efficiently and accurately. Grammarly also offers features like plagiarism detection, citation formatting, and a brand consistency tool to ensure your writing is polished and professional. It's integrated with many apps and websites so you can get help with all your writing.
Another tool worth considering is LanguageTool, which is geared to help you improve your writing with grammar checks, tone suggestions and paraphrasing options. It works with more than 30 languages and offers plugins for many writing tools and websites. LanguageTool's premium version offers advanced grammar and punctuation checks, a team dictionary and user administration, so it's good for individuals and teams.
QuillBot is another option that offers a variety of tools to help you write better, including a paraphraser, grammar checker and plagiarism detector. Its interface is simple enough for writers of all skill levels, and the premium subscription adds features like custom summaries and advanced grammar suggestions.
If you're focused on academic writing, Trinka offers more powerful editing and proofreading tools. It's got a grammar checker that handles more subtle aspects of writing, a paraphraser and a plagiarism detector. Trinka's tools are geared for academic writing, with tools that analyze sentence structure and offer word suggestions that fit academic style.