Decks - Decks is a study application designed to keep all your stuff in one place, instead of having an app for flashcards, another for notes, and one to watch tutorials, create a deck and keep everything organized there.
Sans Forgetica - Scientifically designed font to help remember study notes
Mochi - Write notes and flashcards with Markdown and study them with spaced repetition.
conotes.io - Generate PDFs in Cornell format within your browser
Flashbee - Learning Made Fun
Notepin - Extremely simple note-taking + blogging ✍️