When we learn new words of a foreign language, we forget them with time if we don't use them often.
To avoid this, we have two options: to live in the country of the language we are learning, or study every day the new words we learn to not forget them. The first option is clearly not affordable for everybody, and the second one is not a good idea because we would not know what words really need our attention.
If neither of the two options seems to be a good alternative, what do we do?

Would not it be great to have an application that keeps the new words we learn daily and, wisely, shows us only the words that need our attention?
Well, that application exists, and is called Vocatrainer:

How Vocatrainer works?

When practicing, Vocatrainer will only choose the "weak" words that need your attention. In this way you will save time, learn efficiently, and the words will always keep "fresh" in your memory.

Vocatrainer learning system is based on levels. All words have a level and evolve over time based on your behavior when practicing. The words with higher levels will be presented to you after a long time (even years). Meanwhile, others, with low levels, will appear as soon as possible (a day as minimum).

Levels are directly related to the knowledge of words. So that if a word is in a higher level, it\'s because this word has been presented to you several times, in long intervals of times, and you have always succeeded guessing the meaning of that word.