WhatLetter is an AI-powered application that simplifies the process of translating and comprehending documents in over 30 languages. It caters to a diverse user base, including immigrant families and seniors, by offering instant insights and contextual translations of various document types. The tool prioritizes user privacy, ensuring no images or chat histories are stored or accessible by third parties. WhatLetter is accessible on web platforms, with regular updates enhancing its features and integrations with messaging apps like WhatsApp and Telegram. It aims to provide a seamless and efficient document translation experience, enabling independent document understanding without the need for external assistance.