Agenda - A date-focused note taking app for both planning and documenting your projects.

Anki - Anki is a program which makes remembering things easy. Because it's a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.

Notepin - Extremely simple note-taking + blogging ✍️

Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.

Bear - Bear.app is a note-taking and content writing app that helps you boost productivity with its intuitive tools.

Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.