works exactly the same as the desktop version. don't know a good guide though.
it generates a folder sd://Offliine/Cafiine to place your mods
and to run cafiine on your console select Kernel Exploit first then Cafiine/SD Cafiine on the webpage.
there was not point as i can't unbind ports through a button click and the threads only lasted while the app was open, however with the new backend it will be able to be toggled on or off.
i've tested on 3 devices, 2 samsung tablet, running 4.4.2 stock and 5.1.1 candy rom, and an htc one m8 running cm 13, 6.0.1
only tested hotspot on 5.1.1 and 6.0.1