Love the capabilities offered here to learn kanji. Love the hyperlinks to drill down. Like the example sentences. Like the capability where you can switch on/off the furigana on the kanji. Also you can choose only kanji cards instead of the English/Kanji if you wish.
I haven’t figured the import / export. Be great if we could import words learnt from Duolingo here as Duolingo doesn’t have a flashcard capability (wish they did). It’s hard to go through all the kanji and not be able to practice with Flashcards.
Also would be nice if this was synced in iCloud so you could also use it on the Mac (the same lists).