Hi, i don’t know for iphone but on Android kitkat (H3Droid armv7 ) with python3.7, Panda3D seems to run quite well .
So for short :
Does it run on android ? yes
Is it easy to build from scratch for all api or can you drop it in some studio app: just plain no .
On a sidenote and as a panda3d and rdb fan i’ll say that: I guess the best place to help for experimental features of Panda3D is IRC. Too much discussion around (existing) features but not yet rock solid would lead to confuses users. There are many branches and maybe public forks around, actively worked on, but not much time for help vampires.