That is unfortunately a non-starter right there. Do you know if this is for a reason (using non-standard stuff) or is that just the 'Optimized for IE' issue again?
It's quickly becoming the norm to create Chrome-only apps. As far as I'm concerned it just means I won't use it.
Works with the standard AOSP Browser if you don't have Chrome. Any browser that uses the in-built Android backend should work.
Install the app?
Doesn't seem to work without Google Play Services. Crashes on my device. Also seems like it isn't possible to buy the premium version without having the app.
Mind asking, how is life without Play services?
Not the parent commenter, but am currently using F-Droid and not Play services. It seems great for everything I wish to do on Android. Only exception is the game options, which are very limited.