Well today I started Developing for MacOSX.
My First application calculates the resonance of a Helmholtz Resonator.

This Application is Free To Use.

I used the formula F = 2160 * sqrt(R / ((d * D) + (R + W)))

Download

Requirements
* MacOSX 10.5 or Higher (Intel 32/64 bit)

For any support email keiran[@]keiran-smith.net