If you want a tool that offers a rich set of statistics about your writing productivity and style, ProWritingAid is a top contender. It's got a broad range of AI-based tools, including AI-based reports, detailed story analysis, real-time checks, readability analysis and more. The tools can help you refine your writing style, structure and tone. ProWritingAid works on Microsoft Word, Google Docs and Scrivener and other tools, so it's adaptable to whatever writing project you're working on.
Another contender is HyperWrite, which is geared more toward productivity and writing quality. It's got tools like Flexible AutoWrite, Summarizer, Rewrite Content and more, all designed to meet the needs of students, freelancers, academics and businesses. HyperWrite can be built into your existing workflow, and it's got a tiered pricing system so you can pay for more advanced AI tools as you need them.
If you want to boost your productivity regardless of what kind of writing you're doing, Wordtune is another good option. It's got tools like Rewrite, AI Writing Assistant and Summarizer that can cut editing and writing time dramatically. Wordtune is available as a desktop, mobile and web app, and it integrates with tools like Google Calendar, Microsoft Word and Slack. It's got three tiers of pricing so you can pay for more or less access to its tools.