Second Guess: flashcards that flag lucky guesses using camera signals

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Second Guess is a Windows flashcard app built for the Presage SmartSpectra SDK Challenge. It uses the SDK to monitor the few seconds between seeing a question and revealing its answer. If a correct answer came with signs of hesitation, such as a long pause or looking away, the app marks it and schedules the card for review the next day. Each signal is measured against the user's own 60-second baseline, and users can turn off the camera-based features. Camera data is processed on the computer, and only numeric measurements are kept, with no video.

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