Dvina is a proactive AI assistant that aggregates documents, apps, chats, and databases into a single, continuously updated private context. It reads files of any size or format, including scans, handwriting, and charts, without requiring users to trim or summarize first. Dvina maintains persistent memory across conversations, surfacing relevant details days or months later as context evolves. The platform is available on iOS, Android, Mac, and PC, with plans for individuals, professionals, and enterprise on-premise deployment.