Spaced repetition that adapts

When you study, Federdeck remembers what you find easy and hard. It shows trickier cards more often and mastered ones less—so you spend time on what actually needs practice.

No more flipping through hundreds of cards when you only need to review twenty. Study modes include sequential, random, spaced repetition (SM-2), and a smart algorithmic mode that focuses on what you need most.

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