itch.io

you're aware that you don't have to ask the player about the used platform? the renpy framework is aware of the environment, you can use the variables listed in https://www.renpy.org/doc/html/other.html#platform-detection

easiest is probably something like

if renpy.mobile:
    # set your mobile device stuff
else:
    # you can expect mouse/keyboard as input
    # and ask the player if the menu should be shown

please do not check _only_ for windows and android, renpy is used on a lot of platforms (in my case linux), do not lock out users just because you don't use anything outside of win and droid :)