AF:Note Cards

Note Cards is a professional flashcard learning tool built on the principle of Active Recall from cognitive science.

Master Active Recall. Note Cards transforms scientific learning into a seamless, offline iOS experience. No distractions, just pure focus.

Core Features and Technical Implementation:

· Active Recall Training — The flip-to-reveal interaction pattern forces your brain to actively retrieve memories, proven to be over fifty percent more effective than passive reading.
· Quantified Learning Analytics — Each card independently tracks correct and incorrect attempts with automatic deck-wide accuracy calculation, enabling data-driven learning decisions.
· Randomized Spaced Review — Cards are shuffled each session, combined with accuracy data to identify weak areas, delivering efficient spaced repetition effects.
· Session-Level Performance Metrics — Real-time tracking of accuracy and error rates per study session, quantifying your learning return on investment.
· Localized Data Security — Local persistent storage via UserDefaults, zero network dependency, ensuring complete privacy of your learning data.

Ideal For:
- Language Learners: systematic vocabulary and grammar acquisition
- Students: efficient review of key concepts and formulas
- Professionals: continuously updated industry knowledge and terminology

Technical Architecture: Native SwiftUI development, iOS 17 plus support, Swift 5.9, purely local operation, zero third-party dependencies.