This app is follow up example of the function to calculate the difference in months as described in Calculating Months difference between two dates
The function in that discussion is good but is doesn't provide the results for more specific startdates and enddates. When the startdate or enddate is the first or last day the month it calculates 1 excessive month.
I built a small app to calculate the difference in months for different scenario's of a startdate and/or enddate.
Feel free to improve or give any suggestions on the version...