If you want a service that analyzes your writing style in your email and offers data-driven advice, Lavender is a good choice. It uses generative AI to evaluate your emails and offer neutral feedback and inline advice. With features like Email Coach, Personalization Assistant and a Lavender Email Score, it can help you optimize your emails for mobile devices and performance. Lavender works with common email services like Gmail, Outlook and HubSpot, and offers several pricing tiers including a free Basic plan and an Individual Pro plan for $45/month.
Another good option is WriteMail.ai, which offers real-time analysis and suggestions about clarity, concision, tone and structure. It works in multiple languages and offers AI-powered writing with content suggestions, grammar and spelling checks and a user-friendly interface. With three tiers of pricing, including a free Regular plan and a Pro plan for $20/month, WriteMail.ai can help you work more efficiently and write better emails.