Description: LeitnerBox is a free, open-source spaced repetition software for Windows, Mac, and Linux. It helps you memorize information using flashcards and the Leitner system. Key features include flexible flashcard creation, statistics tracking, progress graphs, and synchronization across devices.
Type: software
Pricing: Open Source
Description: LiquidText is a PDF reader and annotator designed for active reading, analysis and research. It allows users to easily highlight, excerpt, organize and share passages from PDF articles and documents.
Type: software