RemNote
Description: RemNote is a free, open-source spaced repetition and note-taking app. It uses an interconnected web of notes to promote understanding and long-term memory retention. Key features include note linking, spaced repetition flashcards, knowledge graphs to visualize connections, and excellent mobile apps.
Type: software
Pricing: Open Source
YouTrack
Description: YouTrack is an issue tracking and project management web application developed by JetBrains. It allows teams to manage software development projects by tracking issues, tasks, features, bug reports and other requests in an organized fashion with robust search, filtering and reporting capabilities.
Type: software