Recoll

Recoll is a desktop document search application that indexes content for full-text search. It offers semantic search capabilities by indexing document contents and supports various file types and storage locations, including local files and email attachments (which can be considered a form of cloud/remote storage integration). While it doesn't explicitly mention AI chat or automated sorting rules in the same way Dynbox does, its core functionality revolves around intelligent search and organization of existing files. The Android application and WEB front-end suggest multi-user access, though not explicitly multi-user collaboration for file organization. It lacks explicit AI-driven chat or automated sorting rules as described for Dynbox.