Fluent is a system for learning new languages or memorizing terminology, geography, or pretty much anything else. Fluent uses flash cards and spaced repetition to add words to your long term memory.
Fluent has four sections: Daily, Weekly, Monthly, and Completed.
Once you get a card correct 4 times in a row it will move to Weekly. From there you will only see it once a week. After it is correct 4 weeks in a row then it moves to monthly review. Eventually the card will be moved to Completed and will also be in your long term memory.
Get a card wrong and it goes back to the beginning to be reviewed every day.
Currently you must enter in all your own cards.