An application made as a demonstration on how to use the various algorithms offered for free by the author and based upon the book "Astronomical Algorithms" by Jean Meeus...
The software is also based upon the original moontool created by John Walker (fourmilab.ch) but a lot of further data is calculated and displayed.
See the screenshot (click the thumbnail at your right to enlarge), it is self explanatory of the features included: Julian Date, Universal Time, age of the Moon, Moon phases, Moon's distance, Moon subtends, Lunation etc...