The entire cedict.org Chinese-English dictionary is available on SYL (it's over 115,000 flash cards) including traditional chinese (I want to do Japanese very soon). Make sure to watch the video on the landing page, it goes into a lot of the hidden features that I offer. And thanks, I worked A LOT on optimizing the performance of the SPA (size and speed).
Ah yeah, then I must have run afoul of some UX issues. There are a few other UX oddities like the wording on "exploring" cards - I think I was looking for either a global search or specifically the word "search." And the fact that I couldn't find the Chinese flash cards without watching the video on the landing page seems like it's another UX hotspot.
I'll check it out again later. Thanks for the hard work.
UX is not my strength, for years before this I was doing fulltime math + MATLAB :). But it's improving! Yes, it was even worse than it is now not too long ago :o
