I can only imagine, since apps are annoying. BTW. Don't waste your time using the book, Japanese: The Spoken Language because it sucks. It's only in Romaji which is the Romanization of Japanese. Now, the workbooks, Japanese: The Written Language are better.
Technically speaking, Japanese has 5 different types of writing. Kanji which is Chinese Characters. Kanji is considered Japan's original writing system because they didn't have their own writing system. They borrowed and adapted Chinese Characters as their own. Then, they created Hiragana and Katakana. There's also Furigana, which is used to help people learn how to write the writing systems.
So there is Romaji, Kanji, Hiragana, Katakana, and Furigana.