Nice shot. I'm not sure of any apps as I do not have a 'smart' phone (I know, I know...
), but it is pretty simple to locate the south celestial pole without using technology. The southern hemisphere does not have a bright pole star like the northern hemisphere does with Polaris. I assume you are familiar with the Southern Cross? Just use it and "The Pointers" to locate the south celestial pole like this:
www.csiro.au/helix/sciencemail…