Mastering a foreign language is tedious. Tons of words, phrases and idioms, all need to be memorized. There are different ways in linguistic study. Immersing yourself in a foreign country might be the best one, but not the case for everyone. Some choose learning by rote which would only make it more and more boring, then tired and eventually, quitting.
Personally I prefer the third one: learn by reading. Reading is fun. Not only do new words I can meet, but also review the old ones. By this meaning, impression is strengthened, and learning is undertaken in an accumulating way. THIS is the core concept of Word Buffer.
Designed for learning against Forgetting Curve, Word Buffer is embedded with a Review mechanism capable of handling periodic review schedule for each entry you have. No more rote, just watch, review and learn.
What if reading and reviewing simultaneously? Wouldnt that be great? YES, definitely!