That's been around for a good long while. I'm mostly mobile, a good 95%, and Tom's works easily on Android. I actually prefer it to desktop mostly, although when getting into cut/paste it's the same as any other phone and a little cumbersome. Desktop is much easier for builds, and more advanced stuff, but for just answering posts, mobile is nice. I just stuck a link on phone homepage. No worries, brings me straight to forum page.
I asked the mods about it years ago and it was basically explained that whatever browser you use will be more compatible and far less buggy than whatever they could code. I believe the Italian app was originally written by a user, not Tom's personnel, so trying to duplicate that runs into permissions and...