*Basic functions You can create a word book. It is possible to enter a problem and answer, not only words, you can create math, society, the problem collection of self-made, such as science. to be tested and the number of tests, the correct number of times is recorded. Even if it ends in the middle of the test, the number of tests of halfway, the correct number of times will be recorded. *Useful features When the correct answer in a specified number of consecutive can be configured to au