Yesplay

Win is a vocabulary learning app that tracks your familiarity with each individual card through a 0–5 knowledge level that updates automatically with every swipe you make in study mode When you swipe right ("I know it"), the card's knowledge level rises by one step, from 0 toward 5. When you swipe left ("Don't know it"), the level drops. This real-time adjustment means your card library is constantly being resorted based on actual performance. A card at level 5 is considered well-mastered and will appear only rarely in future sessions, the algorithm trusts your consistent right swipes and rewards you by reducing repetitive review of already-known material. A card at level 0 is completely unknown and will appear frequently across sessions until your swipe patterns show consistent recognition, at which point it begins its gradual climb up the scale. This knowledge-level system makes Yesplay's study mode not just a review tool but a learning engine, one that maps your vocabulary understanding precisely and evolves its behavior based on your real performance over time.