The RiteKit API Showcase is a versatile development tool that helps build web and mobile apps with email input enhancement and personalization features. It addresses common issues like email typos and offers tools to extract brand information from business email addresses, which can be used to personalize UI elements for a more tailored experience.
Another excellent choice is Superhuman, an AI-powered email tool that includes features like a split inbox, AI-powered writing assistance, follow-up reminders, and email error correction. This can significantly streamline email management, making it easier for users to efficiently handle their emails and reduce distractions.
For a broader AI-powered solution, EnhanceAI offers smart autocomplete to improve user experience across various applications. While it's more focused on filling out forms and text fields, its intelligent AI adaptability can enhance overall user interaction, potentially complementing your app's email functionality.