Jaju: Learn a little, often

Jaju (자주) means "often" in Korean, and that is the whole idea: learn a little, often.

Jaju is a flashcard app built on spaced repetition. Every card comes back right before you would forget it, so a few minutes a day is enough to keep what you have learned.

PRACTISE
• Flashcards: see the word, recall it, rate it Again, Hard, Good or Easy. Jaju schedules the next review.
• Typing and listening practice: type the answer, or write down what you hear.
• Sentence drills: put a sentence back in order, fill the gap, write your own.

STAY ON TRACK
• A daily goal, a streak to keep, XP, levels and badges.
• A daily reminder at the time and on the days you choose.
• Progress: what is ready now, the words you have met, your hardest words, and what comes next.
• Session history: every session, day by day.

BRING YOUR OWN WORDS
• Import Anki decks (.apkg).
• Or build a deck by hand.
• Optional: connect your ChatGPT Plus or Pro plan to scan a printed word list with your camera, generate example sentences for your cards, and check the sentences you write.

Your decks and progress sync across your devices. Light and dark theme. You can delete your account and its data from the app at any time.

Jaju starts with Korean: its decks, audio and examples are built for learning Korean vocabulary today.