Just hiragana, katakana, kanji and vocab.
Before you log in, on the intro/login page, there is a "What you will learn" section clearly stating what I just said. (Although, this info isn't shown on phones and other small screen devices... Maybe this is why you asked this?)
^^;
The "Readings" section does have news article clippings. It is primarily for expanding your vocabulary, but it also gives a good opportunity to do some reading practice (and, therefore, grammar practice). Currently this is the closest you will come to something grammar related on here.
December 22, 2015 at 7:33am