HomeHacker News Show HN: Studius – a simple, powerful flashcards app with spaced repetition https://ift.tt/RaZcV4t byHat hair -April 18, 2022 0 Show HN: Studius – a simple, powerful flashcards app with spaced repetition https://studius.ai/ April 19, 2022 at 01:19AM Tags: Hacker News Facebook Twitter