It took a bit of digging but I managed to find a related topic to this that might help.
That person was also interested in working with the sound and started that topic in order to find a way to make it function in their story. There were apparently some complications with getting certain sound commands to work on smart phones, and I’m not entirely sure if the issues were resolved or not. @Lordirish probably knows more about the details than me.
I hope we can get it to work though. Adding the crackle of fire or the patter of rain to specific scenes can really help immersion if you ask me.