Features Features. Letty is a personal AI email assistant that helps you compose, reply, and edit emails with AI efficiency. It adapts to your style, offers smart suggestions, and supports over 100 languages. Related AI tools Fiber AI – Chrome Extension 24/09/2024 000 AI Customer Service Assistant OHMYSYNT 12/06/2024 000 AI Ad Creative Assistant MyLikenessAI 16/06/2024 000 AI Advertising Assistant Open Mind – Chrome Extension 16/09/2024 000 AI Analytics Assistant Summary.sh 08/06/2024 000 AI Advertising Assistant TextCortex 04/07/2025 000 AI Content Generator