Amazing! That’s working perfectly. Thank you for implementing it so fast 
Some other (more minor) feedback now that I’m actually using it - all of this intended fully as constructive suggestions, your app is already pretty amazing!
- When I e.g. get something wrong and go into details, return to the review, and click to the next review item, the keyboard doesn’t auto-open again as it should.
- Very minor, but there seems to be some kind of splodge shape behind the Jitai “Aa” button in reviews that flashes in and out of existence? Not sure if that’s intentional (EDIT: Based on your screenshot of iOS, could be the second round button appearing behind the Aa button?)
- When you click on the wrap up button, the Jitai “Aa” button moves and overlaps the “Wrapping Up (X left)” button (i.e. the wrapping up button seems to stop taking up space on the page
- Some other UI things:
- There could be less empty space at the top
- Scrolling / spacing is a bit broken - on this screen the kanji is cut off and the “kanji meaning” box is cut off (can’t be scrolled, only the part below the “meaning / reading / stroke” tabs scrolls
- Can we have an option to hide the “+ synonym” button? I never use it and it takes up a fair amount of space
- On the meaning / reading tabs, if I scroll down the bottom is cut off (i.e. I can’t scroll further than the top of the green/red checkmark/cross icons, they’re cut in half)
- The highlighted words in the mnemonics aren’t vertically centered
- Maybe overall the paddings / sizes / etc could be adjusted a bit? If you look at the second screenshot below, of the Flaming Durtles app, you can see that space is used much more efficiently - the kanji/vocab are smaller (I wonder if you could e.g. animate them so that they have the current size while answering, but then shrink down on the answered screen or something?), buttons have less padding, etc. It just ends up looking less overfull / packed in even though it has space to display more information.
Another example here - padding can be nice but also if there’s too much it ends up cluttering things up more (in my opinion) as it uses so much space - e.g. all those paddings I’ve highlighted green could probably be reduced.
Thank you for your great work on this app!
EDIT: Also noticing some issues with the audio replay button on the reading questions, it seems to lag and block all interaction while doing so. I click it, and it takes a good 5-10 seconds to load (during which time I can’t click / scroll anything else on the page), and then continues saying “Replaying” for a few seconds after the audio finishes (during which I also can’t interact with anything). It also doesn’t seem to cache the audios in any way? i.e. it takes just as long to load an audio the second or third time as the first time 
)
I know the struggle cross-platform stuff can be, having experienced the opposite (no iOS device to test on)…
