Is WaniKani suited for not native English people?

[polv]

This one. Not sure if other variants still work.

[Userscript]: Double-Check (Version 2.x)

Wanikani Double-Check A multi-feature companion script for Wanikani reviews. (Credit to Ethan for his original version [here]) This is a third-party script/app and is not created by the WaniKani team. By using this, you understand that it can stop working at any time or be discontinued indefinitely. [ General Script Installation instructions ] You’ll need a script host plugin like TamperMonkey [ Open Framework Installation ] [ Download / Install “Double-Check” ] S…

Other that using UserScripts on the website, mobile applications are pretty liberal.