"Anki is a program which makes remembering things easy. Because it's a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.
Anyone who needs to remember things in their daily life can benefit from Anki. Since it is content-agnostic and supports images, audio, videos and scientific markup (via LaTeX), the possibilities are endless." - from the Anki website
Anki is a free, open-source, cross-platform, spaced-repetition flashcard program. It is easily extensible, with many add-ons to customize it to our needs. Additionally, it has free synchronization between devices, making it easy to study on the go. It is the most popular spaced-repetition software with a huge user base. Given its popularity, community, extensibility, adaptability, open-source ethos, and cost-free availability, it is the ideal choice for our study workflow.