how to get both iOS and Android to work with .local or similar solution

hello

I have code that works great for users with iOS going to the mysite.local domain however half the world cant use it (android users)

how can i get it so that android users can use it as well with out having to make all new code?

can someone help me please i dont know code well and could really use some help solving this

I tried using Ken Taylors wifimanager but that version will not save cridentials so everytime you use the device you have to do all the setup again

thanks