A light app (less than 20 MB) to memorize concepts by heart with spaced repetitions, minimizing time studied and maximizing recall.

FEATURES:
1. Review with spaced repetitions: Periodically revisit learned concepts with the spaced learning technique [1] to maximize recall while minimizing time studied. Cards that are due are signaled with a blue circle. Once a card is recalled, the next review date needs to be chosen. Cards can be marked as learned, when we consider that we have permanently committed them to memory.

2. Organize cards in collections: Organize cards by subject, and get statistics of the number of cards learned so far.

3. Backup: Backup all your cards to keep them safe and restore them later.

4. Sharing: Share one or more cards with family and friends.

5. Formatting text: Change the color and style of the text to highlight words or letters. For example, I use red blue and green to highlight the gender of German nouns.

Source code: https://github.com/EtorArza/memorize-with-cards-and-spaced-repetitions


[1] Smolen, P., Zhang, Y., & Byrne, J. H. (2016). The right time to learn: mechanisms and optimization of spaced learning. Nature reviews. Neuroscience, 17(2), 77–88. https://doi.org/10.1038/nrn.2015.18