Learn a language one deck at a time
Start with a ready-made deck, or tell Langu what you want to learn and it drafts the cards for you. Study each deck until every card sticks — the ones you miss come back before the pass is over. Latin American Spanish to start; built for any language, in any script, in any direction.
Cards written for you
Give it a topic, a pasted passage or a word list, and get up to twenty cards pitched at your level. Nothing lands in a deck until you accept it.
Study until it sticks
Turn a card over and say how it went, or pick the word that fills a real sentence. Miss one and it comes back before the pass ends.
Meet Bo
He turns up when a deck is empty, when a session is over, and when you get something wrong — and stays out of the way the rest of the time.