Syncing between different devices allows me to memorize to memorize wherever I am - perfect for anytime that I have a few minutes to kill. Spaced Repetition learning was a new concept that has proven to be very effective. No alternative allows the flexibility or provides the effectiveness of Anki. Ability to use and design add-ons to the software is a large bonus that makes Anki a very complete product

Came across the software through the book "Fluent Forever by Gabriel Wyner. Anki makes it very easy to create new cards, and you can create different types of cards. The most basic type is the traditional flash card. There's also a reverse card, where you're sometimes shown the front ("Chair") and sometimes the back ("Silla," Spanish for chair).

This software automatically creates scientifically based spaced repetition.