Yes, both Shakespeare AI Toolbar and Xmind offer a Free Trial.
Pricing for Shakespeare AI Toolbar Starts at $49/month whereas for Xmind Starts at $7/month.
Shakespeare AI Toolbar offers several advantages, including Accessible everywhere, Chrome extension, Summarizing feature, Rephrasing suggestions, Supports many languages and many more functionalities.
The cons of Shakespeare AI Toolbar may include a Not free, No compatibility with Google Docs, No compatibility with Office 365, No free trial available. and 000 words/month