How Examova Uses SM-2 Spaced Repetition to Prioritize Weak Flashcards

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Examova, an exam-prep platform, has implemented the SM-2 spaced repetition algorithm across 1,746 flashcards covering PMP, CIPS Level 4, and Business English certifications. Unlike typical flashcard apps, the system adjusts review intervals based on performance: correct answers push a card further out, while incorrect ones bring it back sooner. Answer grading is handled server-side to prevent users from accessing answer keys through client-side code and to keep interval calculations consistent. The founder notes that the core challenge was not the interval mathematics but ensuring the review queue becomes the default user experience rather than a hidden feature. Spaced repetition and practice testing are established learning techniques, and the implementation is live at examova.com.

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