Found it: east-education.jp/products/dongri/meikyokokugo. Only for PC/iOS/Chromebook though (not Android phone).

@max 期限付きなの！？

６年間でいくら、とか書いてある

一年間で１１００円・・

１００円は明らかに消費税ですが

こういうのって、アメリカの人とかが買っても、免税にならんのか

そう、期限付きだけ

Macbookだったら monokakido.jp/ja/dictionaries/mk3/index.html

I ended up buying it on Macbook using the link above, but the Apple store is horrible, I can't actually see my order, so I don't know how much I paid. It was something like 2000 or 3000 yen maybe?

(For a permanent offline access)

これ？

3400円

apps.apple.com/jp/app/…

えっ

> Special pricing is available for college students, teachers, and educational facility staff. Please call for more details.

学割みたいな？