kOS

kOS is a macOS research tool designed to help students and faculty manage PDF documents, annotate them, and use AI responsibly. It provides proof of work by allowing users to build presentations showing their research process. Key features include folders with table of contents, word clouds, indexing, and AI-powered conversation about documents. The app is private and secure, operating without servers and not requiring internet access for basic functions. It offers free features such as gathering and indexing PDFs, exploring content, and generating presentations. Premium features, available after a 6-month free trial, include AI document Q&A, summaries, phrase builder, advanced annotation, and more.