It most likely isn't, but there are far better resources out there anyway.
for reading/writing I would say go look at
$1 and
$1 , as well as
$1For audio there's a large amount of resources, I recommend looking at the wiki for the learnjapanese reddit.
Screenreader-wise, especially if you have a braille display, I highly recommend picking up a Japanese copy of NVDA, that way you have the Japanese braille table and some japanese-only little extras that come in handy when learning kanji.
$1 from memory, may need to remove the .co.
Good luck :)