Oppia

Remember the words you learn. Oppia is a vocabulary flashcard app built on spaced repetition. The idea that you remember something best when you review it right before you'd forget it. Instead of drilling the same words over and over, Oppia works out when each card is due and shows you only what needs attention today. Bring your own words Import a full word list from a CSV file in one step. Each card holds a word, its meaning, and an explanation or example, so you get context rather than a bare translation. Decks, your way Organise words into separate decks — a language, a textbook chapter, exam vocabulary, whatever fits how you study. Set how many new cards each deck introduces per day so you're never buried. A short session, every day Rate each card as you go: Again, Hard, Good, or Easy. Your answer sets when the card comes back — days, weeks, or months later. Due cards always appear, so nothing slips through. Writing Practice Pull a handful of words from your deck and use them in your own writing. Recognising a word isn't the same as being able to use it. A gentle nudge Turn on a daily reminder at a time that suits you. If nothing is due, the day stays quiet. Oppia keeps your cards on your device and syncs them across your devices through iCloud. No account to create.