I'm still curious about this.
Viewing post in Adventure Call: a foot fetish-themed fantasy RPG (Demo) comments
Full version has been released last week. The file is apparently slightly too large for itchio, and their support hasn't responded when I messaged them. So for now the only way to play it is a direct download: https://www.deviantart.com/cc4747/art/FULL-RELEASE-Adventure-Call-1057063030
To make a mobile-compatible version I'd have to find someone who can actually port stuff over onto android and make a working app.