Can i map for Djay2 on iPad?

Is it possible to map a controller to Djay2 (iPad) by myself?
If not, will for instance Reloop Beatpad’s mapping also work for other Reloop devices (i assume it uses the same CCs etc) or will it say “device not supported”?
There’s support for Numark Mixtrack iDJ Live and Quad, but not Pro etc …will Pro work?
I’ve been stuck trying to decide on a controller for more than a month now!