Takoboto is a free dictionary app and study tool. It has flashcards, study lists, kana tables, and links to external sites for detailed grammar explanations.
Takoboto differs from other dictionary apps, like Kanji Study, in that it offers a section for conjugated forms. Like other high-rated apps, it also includes example phrases, kanji with stroke order diagrams, and a breakdown of definitions.
You can seamlessly transfer words from the app into AnkiDroid. Although Takoboto’s in-app flashcards are not as interactive as those in Kanji Study, Takoboto has a slightly smoother flashcard transfer to AnkiDroid; while Kanji Study transfers oddly formatted definitions, Takoboto transfers well-formatted definitions with an example sentence.
Although Kanji Study seems to be more thorough with its breakdowns and explanations, both apps have their strengths — and luckily, these two apps can be used together! If you tap on any kanji under the kanji section in Takoboto, you can link directly to further explanations in the Kanji Study app.