Sorry your programmer is having a tough time. Obviously that is more important.
I did look at the html 5 version on desktop, and that made it clear that the issue on Android is just one of screen proportions. On my phone it turns out that the top and bottom of the app's screen are cut off because my phone is too 'widescreen', so the button in question is there, just offscreen. That should be easy enough to fix whenever work resumes. Until then I'll figure out how to subscribe/watch for updates. Cheers!